Dissecting SQL Server Execution Plans

Transcription

1 The SQL Server Performance Series Dissecting SQL Server Execution Plans By Grant Fritchey In association with ISBN: Shelving: Database/SQL Server wwwsimpletalkpublishingcom

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19 SELECT [cp][refcounts],[cp][usecounts],[cp][objtype],[st][dbid],[st][objectid],[st][text],[qp][query_plan] FROM sysdm_exec_cached_plans cp CROSS APPLY sysdm_exec_sql_text(cpplan_handle) st CROSS APPLY sysdm_exec_query_plan(cpplan_handle) qp ; 8 3*:A@? A 7) :AF@? A7 *! + + *L )) * 7 9*+ )) * 7 /4 4# ) )) * )) * )7+ /* )* 0 ) + L + ) ) + + ))")) *+ 7 /$#2'# +*L*7+ ) )5 CREATE TABLE TempTable ( Id INT IDENTITY(1, 1),Dsc NVARCHAR(50) ); INSERT INTO TempTable ( Dsc ) SELECT [Name] FROM [Sales][Store]; SELECT * FROM TempTable; DROP TABLE TempTable; F*5 Msg 208, Level 16, State 1, Line 7 Invalid object name 'TempTable' -7*))7 7)'

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27 ) 3* 7 ) + *L ) ) )+ ; 8+ * 75767@?A67? )767+*L 7)677+)* )35 SET SHOWPLAN_ALL ON; L +*9<8 A-"I-AA<"+7) ) 3 :A * L 40/53755 ) ) 3 ) )+ &$6$+ <6$ <$5$6$ * 40/ '( )7+* 40/53755))+5 SET SHOWPLAN_ALL OFF; 8 3 ) 40/5376$-6 7 * )*#8%+* * /53755) 8)40/ )-7+5 SET STATISTICS PROFILE ON -5 SET STATISTICS PROFILE OFF," 8L* 3**+7 )*5 GO SELECT *

28 %567! FROM [dbo][databaselog]; GO SET SHOWPLAN_ALL OFF; GO # 8 73+*9) )5 ") * 7 7 )*4$5$&6 * *)* * 3 * -**77++L3= L 3+ * * K )K F *+ )) /G0 ) + * **)? ))L ++*32* + ))+*3) ) 40/53755**" - L ) + 6#46&+ $:)+,)A / 0+* 1 *5 4 A * * ) 7 :A 4))) SET SHOWPLAN_XML ON SET SHOWPLAN_XML OFF -)40/ / :A )*+ 7 ))+))@? A-+L 9<8 A-"I@? A )) ) )+ A)-+5

29 ( SET STATISTICS XML ON SET STATISTICS XML OFF," /+ <+L7**7 GO SET SHOWPLAN_XML ON; GO SELECT * FROM [dbo][databaselog]; SET SHOWPLAN_XML OFF; GO +)+*)$5 A)5 \Microsoft SQL Server\90\Tools\Binn\schemas\sqlserver\2003\03\showplan\showplanxmlxsd 7@?A) **** :A? /? 0 F * 7+ ) /) 0 F ))? G # 6 - ) ) )*@?A P )***L * 7+ * + 7 "+*))@? A) + ) 3+ L * ) 5 A) *L!+"7+ 7*L*)+*33) 44#8 +*) ))+ )?#5 <StmtSimple StatementText="SELECT * FROM [dbo][databaselog]; " StatementId="1" StatementCompId="1"

30 %567! StatementType="SELECT" StatementSubTreeCost=" " StatementEstRows="389" StatementOptmLevel="TRIVIAL"> <StatementSetOptions QUOTED_IDENTIFIER="false" ARITHABORT="true" CONCAT_NULL_YIELDS_NULL="false" ANSI_NULLS="false" ANSI_PADDING="false" ANSI_WARNINGS="false" NUMERIC_ROUNDABORT="false" /> <QueryPlan CachedPlanSize="9"> (% ) * ) 40/53755" = 7 + * 7 ) & #4* )+) ' -)+*#+*)*L)*+ + <RelOp NodeId="0" PhysicalOp="Table Scan" LogicalOp="Table Scan" EstimateRows="389" EstimateIO=" " EstimateCPU=" " AvgRowSize="8569" EstimatedTotalSubtreeCost=" " Parallel="0" EstimateRebinds="0" EstimateRewinds="0"> " ) 7 + L 7/ )*07+ +,) A + )) + 5 * )&# + ) 5 <OutputList> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="DatabaseLogID" /> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="PostTime" /> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="DatabaseUser" /> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="Event" /> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="Schema" /> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="Object" /> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="TSQL" /> <ColumnReference Database="[AdventureWorks]" Schema="[dbo]" Table="[DatabaseLog]" Column="XmlEvent" /> A+ 3!+)#) * 5 <TableScan Ordered="0" ForcedIndex="0" NoExpandHint="0"> * ))) 5

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32 %567! *7)*5 4:#6%5)*7)3* )40/5376$-6:A *7**:A4 + * ) ) *@?A8L )77+)) 4:#6%( +5 + *) ) )) 4:##5)37* )740/53755:A *7+)) 4:##?&#5 *-+ )*3 )) 4:#4 #57 *:A &425$ )7+ ) &4-5:A4:#- 54 # :A)4:#4 #) 4:#- 55)*7)3 7*40/ :#- 5?&#5A*@? A + ) )3 4 5*@? A:+ +)* ) )++) 4:#- 54 #5*7 )3+ ) 7 + A )+= * 6))3*@? A):* ) C * ) " 4" /+ :A4)*@?A@?A7 3=73 )+* 7+)+* 4 * K6 K K* K 7 *@?A*)+/U0 7*@?A 8 *@?A ) )+ ))* +5 (( 4! )+ -+ ) F-,? " )P* -A6>>-6

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35 ! (& *8 )) * :A 3 ***? )) )3+)+ *L*=* 377 7F* )) ) + + *+ L * * L*

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37 ( 3 # 2%4 6#4 0 35!1 6 & 4 # &4 # A= $!4# -, >! * ** 73 < *P+ (!!!+ > P 3 ) 7!)+3*)*) 7+ )))? )** ) # AL + 3, )*/))O038& -8 5 SELECT * FROM PersonContact *75

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39 ' SELECT * FROM PersonContact **)5 " 7)))+*** )* * = 73)+ )7 7:A!/)0- #% * * )*+ *+)*7) ) * &# 2% 4 8& +)@7& 7& 2+* 7)

40 5>67)!: " **) 7 *+* = %, 5 '% AL )) 3 8& R 75 SELECT ContactID FROM PersonContact WHERE Address LIKE 'sab%' 8 7 " * )( 7+2-7& 7$# 36$ *-+*? ))* )7 " + ) *)

41 ' "$ A7+77* C ),37+3 = ) ) Q<3)7P7 )!5'" AL3)1)* 5 SELECT ContactID, LastName,

42 5>67)!: '( Phone FROM PersonContact WHERE Address LIKE 'sab%' F*)'5 "% +*O>) ) + ) * 7 2-7& 7$# )3+,-77 ) 3+)3= **)-) 7+)4+ **$#& 2<

43 7& 2< 7)*+* 53 +*)&

44 5>67)!: '4 ") -DA & *7 - D A = * + / *,0 * )7/) )0 )DA3) )) )7!7) 3+)*) 7+DA -DAC* "A1 )* & + * * 7 +* AC)

45 '& "* +"A1)1 ) ) + D A 3+ " A1 *) 7DA )D A* / 7* 0+ " A * *7 # ))7*% 3** +*) F 7)*35 SELECT * FROM [dbo][databaselog]

46 5>67)!: '$ " - )+ L) )7 +3=*) *-* **) +78 /10)*) + * ) ) ) 3 =**7- +3=)* 7* *)** - )* + <+) *+ * * * 3 )* *+ 7) (, 5'"

47 ' )*)))<5!3 + * )) ) 7 2< 5 SELECT * FROM [dbo][databaselog] WHERE DatabaseLogID = 1 "+ )3+3=)) 7 8 7))*/0$$ +379***;

48 5>67)!: '# "# ) ) 7+*K!%K< K!%K 7)3 "7+3=)>,AC+*) / L70+*) )* *+ L7/ *0+*)7 Q< *)) )) +* *"A

49 4 "## # 7 )>,A+K!%K+ /)>, A0*)3 +* +*L ))!)>, A*+3* ) Q<P * C*+*** AL 1 3 )* 3 )+ 353) SELECT e[title], a[city], c[lastname] + ', ' + c[firstname] AS EmployeeName

50 5>67)!: 4% FROM [HumanResources][Employee] e JOIN [HumanResources][EmployeeAddress] ed ON e[employeeid] = ed[employeeid] JOIN [Person][Address] a ON [ed][addressid] = [a][addressid] JOIN [Person][Contact] c ON e[contactid] = c[contactid]; 7)3*)% "# * 7)) * +* ) +5 % 78 /'4S0 9? 1 *0 8$# 8/S0 ( 78& /%S0 AL)* )% +)* 7 0 8$# + * 7 8 *7+ L)! +*%(+* * ,7&7 4' 27#&*%#+&%'* *

51 4 "#$ 3=2&+* =+ )7 + ***78 %#+&%'*'4S)3) %'%( 3 =) 7 ) +* 3 = ))* +)) * 7+)*7 0 >+7)7 )*%'5

52 5>67)!: 4( "#%!) * * 9? 1 + * * * 5! # 9 3 * ) )37+ *) 3 )* **)A + 9) *:A)))**+ +)) - ++)3 = + + * 3 ) * 7+*) + + "**+0 1*:A1* *))* 1+ + * +)** 1!) + =+ ) <+) +9?1 )) )1 7+ ) 0 8$#82 *8 9? 1)))*+)) 9? 1**) 1+ ))* 7 < + 9? 1 )) 1 /" A? ? 1 75

53 4' 7 /0$$ /0$$* / +KKL 0 *L77 8 9? 1 ))*)3=1* +))*1* ) 8 96> >6 *+ 9? 1 ))1 ) + )++ 9? 1 *)1 87 * )* +%&/L %&*0+ )*+#-))** + ) - ))))6-3 ) * 7 0 8$# 9? *))9? 7, 5 -)9? E+*&#2%4 8& + 7& 2+ * 7) 7 *%4 "#&

54 5>67)!: ") 4 )%4 + * 1 *& 20 8$# 8& % " 7 44 *7+ 1 *)+351+*%& "#) #>) * ) 1 / 70)* )*) **+)) )) 1C+)1 *7 " +7*)%+ )+* )*%#

55 4& "#+ ) + ) + ) P + $#3 * & 853 & 83 * * 8 *=++L7)3 )) + 7! 9 " A E+ 3 = )! 1 7 )? E+ * )* -8 5 SELECT ccustomerid FROM SalesSalesOrderDetail od JOIN SalesSalesOrderHeader oh ON odsalesorderid = ohsalesorderid JOIN SalesCustomer c ON ohcustomerid = ccustomerid 37*)%$ "#* -7+3=) 7 & 7 4#0

56 5>67)!: 4$ /0$$*)3+*) * "7+*) &4#0 1!1 -? E * 1 7+**)? E+*)%+* 1 4# &2< + 1 -? E))*1* +* 1 )1+3= ) 0 1 )+ )? E+ 0 ) )) 9 E 3 = 7!AB <? E1*) + 1)* 9? E+ * * - )+ 1 * ))? E1 ) + 3 = ) )? E+? E*1 + ))7

57 4 *( <)3*3*) 5R*+/0$$8L* + 37 >)* **) /+ * /0$$ SELECT e[title], a[city], c[lastname] + ',' + c[firstname] AS EmployeeName FROM [HumanResources][Employee] e JOIN [HumanResources][EmployeeAddress] ed ON e[employeeid] = ed[employeeid] JOIN [Person][Address] a ON [ed][addressid] = [a][addressid] JOIN [Person][Contact] c ON e[contactid] = c[contactid] WHERE e[title] = 'Production Technician - WC20' ; *7)35 " ) +* = ) /0$$ 7+/0$$ )* +* * )&#2%4 /)%0

58 5>67)!: 4# "# =+ +* )+* * 8*78& + 3+=* ))351 =* * L * ) + 7 * 1 ) 0 8$# )7 )-))1 * */0$$+3* /0$$ 3+ * ) * :A * KK**+* 1 * +*/0$$* 3 * ) + 7+ * )*)) )=)3+ * * /0$$ + * %%'4 '4 )

59 & 3L))+3E* * 3 4 ($' &: $(( &: 8 3+ )) 7 *<$75 SELECT * FROM [Production][ProductInventory] ORDER BY [Shelf] 7*) " &#2%4 4) 7+)* * *3=*7 )<$ )+)+*)) 4/)( *0

60 5>67)!: &% "$ )**)/)'0+L %&# * %&# * ) 7++%&#* "% $&S))3 7+*37

61 & - ) + * * 4S) 3L 7+)*= ** ))*5*/0$$? +3* 9*+)/0$$7+) *3 )* +** <5 ; )+ L ;7+ 7 ;* + )+*)7 )7+*3)+ ) *)*)3 )*3)*5 SELECT * FROM [Production][ProductInventory] ORDER BY [ProductID] 87*)45 "& -33+<$ +*L7 * +*7+* + ) 73== + ) )+:A4))8 )+ :A 4 ) )>-? )!) +:A ++ * 8 + :A 8+* ) )) )+8+>-? *9? )19? * * 3 AL 3 &365

62 5>67)!: &( SELECT [City], COUNT([City]) AS CityCount FROM [Person][Address] GROUP BY [City] 7* * ") 37 * 7+ )*) 3/0$$)** ) 3&36 ) 3 =*)+)9? "9? 7*KK * ) 9? ) 1- *9? *1+9? *:A )* +*KK<+ : )+ * * KK)) /0$$ )* + ) )* 0= SELECT [City], COUNT([City]) AS CityCount FROM [Person][Address] GROUP BY [City] HAVING COUNT([City]) > 1 7**)$5

63 &' "*!0= #)+&+ %<) )**) 0=23)8 )*0 4$4 #L(' " 8 0=23)+ 3+ 0=23 ))-*7+ )*))3*+* /0$$3 )* (# (4 " 8 7)++* 5 -> 6> ->*6>*? )+) * =+ )7++*** * * +* 8 + <> 7 +

64 5>67)!: +=3 2(+ )+ +/0*) 3%(+,)+ +3%(+ +))+) )*&#(+- &#(+ - *) )2(+ - * )2(++ )) - *))1 - * * ) 8 ) + *+ )+*7)) *)!L8 ** +*7+) ))*7+ *5 " 7 >: >* B ))*+ ** * 4$%)6$+* * 3 = 3? ) * - -) + + ) ** === * +1*-+ )7*)=) * + * * ) * ) * * ; )* 3*3=+ 2(+*"<) 1 )<")1 + ) **3 )* )1 *),!-;+) * * + Q< )+ *+ ) )+ *3+) &4

65 && 7+))3)* *+ Q< ),;'" 67)3 ) )* 3L 8 7 )4$5$&63+**7) 234$6+<6$+<$5$6$3, 9234$65 INSERT INTO [AdventureWorks][Person][Address] ( [AddressLine1], [AddressLine2], [City], [StateProvinceID], [PostalCode], [rowguid], [ModifiedDate] ) VALUES ( '1313 Mockingbird Lane', 'Basement', 'Springfield', '79', '02134', NEWID(), GETDATE() ) ; / L)) *0+*# "+ 7 ))+ )+ * * 5 & 4 ) * 3 +L *)7* ))&4 #)! *3*) )*")*+*7*+* )+) - * ) ) ) * + ) $6<6$)-)&#2%2+* 1 ) ) =" ) "6> + 884' * ) &# 2% 4 84' *+* "6>)

66 5>67)!: ) ) ) 4' 2 1 * 7* 7+-) 7)67%%'3=<+*+ * 884' 2 ) ) 84' R * ) '" )*5 &$ UPDATE [Person][Address] SET [City] = 'Munro', [ModifiedDate] = GETDATE() WHERE [City] = 'Monroe' ; 7* *5 "$ AL 7+))) 7+*)*)7+ +*)) ) 7 ) ) )*/0$$C&DE <6$7+)* +) + ) 6* <6$3 35 )6)4$5$&6+<6$+ ) + + ) * + 64$5$&6 7$!4#/)) 0 ) * 1 A7+) */ ) " A ) /* 7 +** 70 3+**3 7+** ) +7+ $6<6$(+)3 "**)<6$+ 7C + )7) * + -)+*:AA6+* <6$

67 & ) + ) * ) * * 7+ 7*)+* )) +7* )) )+)* Q<)3 <6$ 8 )7*<$5$6$;7+L )*7 DELETE FROM [Person][Address] WHERE [AddressID] = 52; (%*75 "$# * )) 1*** * > +*+*+ 3- ) ** * +)))) +4$5$&6<$5$6$ + +* 7, )) )*) &#2%4 6<#*5 Prefix: [AdventureWorks][Person][Address]AddressID = Scalar Operator(CONVERT_IMPLICIT(int,[@1],0)) +F A+*2 )L + * L );)3 3 +)=

68 5>67)!: &# "$ -) + ) 7 7 )"AE)A)E )1 ** 3) ) E+ )* *L+))7 )+ ) + * + <$5$6$ "$$

69 ! $ 1 * 7 9*+ * ) +* ) )*3)= 371 +L7 = A * = 7 ))!7+*) =+)7)7

70 $% ( < / % /+ /',$% % $( &, '(, ) * *7@? A78 A7L+ *7+*7@? A7 ) :A * )+*7? ) 7+))77 ) 7 7 L,!-*)*+7 7 :A ** 7 7 $ +?)@?A:A4 A7 +@? A A *? ) 7 7 A) )));) 6+@? A )) ) +@? A )*,!-+? =7 ++L))) ) * 7 7 ) ) ;L3* )**:A4 )+ )))7+ ))@? A))<+) ):A++ +* *7 ) :A +**) "! AL 77)3**+ +*L5 SELECT ContactID, LastName, Phone FROM PersonContact WHERE Address LIKE 'sab%' $:A4))7 7+ ) *

71 $ "# "*+*L37> 40/53755 * * 7 " :A ) 7+40/53755))5 SET SHOWPLAN_ALL ON ; GO SELECT ContactID, LastName, Phone FROM PersonContact WHERE Address LIKE 'sab%' GO SET SHOWPLAN_ALL OFF ; GO )+*) 5 " >*%+46%)*7) :A * 7 ) + L ) 6+* "$ *):A*7/6A6+ 0*537/537/+ 46% ) -346%)* 5"A1+7+7 C)+LK) K 7 )* ) + * ))/G0+8 )3**)?+>G>7+ *))*)77

72 ) 32< +*, ) +8 +)* +7) 7+ 7 ) 7?**+**(/" (0* 7!746%/7!0* 7*8& 5 OBJECT:([AdventureWorks][Person][Contact][IX_Contact_ Address]), SEEK:([AdventureWorks][Person][Contact][ Address] >= N'sab' AND [AdventureWorks][Person][Contact][ Address] < N'saC'), WHERE:([AdventureWorks][Person][Contact][ Address] like N'sab%') ORDERED FORWARD <=# ) 537/ ) * 3/6A68 96>60+5 [AdventureWorks][Person][Contact][ContactID], [AdventureWorks][Person][Contact][ Address] < /0 3 3),)B) 3=7 + ) $: (+ 7 %#* "7 * ' /", 40+ * 7 8& * * ** 7 ) + * * + +)+8*) 46%)5 --Clustered Index Seek(OBJECT:([AdventureWorks][Person][Contact][PK_Contact_ContactID]), SEEK:([AdventureWorks][Person][Contact][ContactID]=[AdventureWorks][Person][ Contact][ContactID]) LOOKUP ORDERED FORWARD) "+)$:+%* 9*+)7)+$$% +L %#*3 $$% 7 ))37)D AC<+ )7+*) ) * % *- ) + *= 8"*/",0**"A 1 ) * <=#"+*+ 5*& 2< ) + $:+ $2+ 6#46& + )) ) +**L! "! 7 )3*)*9*+* AL 6 7 ))*3+)1/0$$5 $(

73 $' SET SHOWPLAN_ALL ON ; GO SELECT c[lastname], a[city], cu[accountnumber], FROM st[name] AS TerritoryName [Person][Contact] c JOIN [Sales][Individual] i ON c[contactid] = i[contactid] JOIN [Sales][CustomerAddress] ca ON i[customerid] = ca[customerid] JOIN PersonAddress a ON [ca][addressid] = [a][addressid] JOIN [Sales]Customer cu ON cu[customerid] = i[customerid] JOIN [Sales][SalesTerritory] st ON [cu][territoryid] = [st][territoryid] WHERE st[name] = 'Northeast' AND a[stateprovinceid] = 55 ; GO SET SHOWPLAN_ALL OFF ; GO 8 73+*'* 7)) "% *)+)/G0 + ))+* ' 2 "& */0$$ )* --Index Seek( OBJECT:([AdventureWorks][Person][Address][IX_Address_StateProvinceID] AS [a]), SEEK:([a][StateProvinceID]=(55)) ORDERED FORWARD)

74 $4 ) 2+ ) 4$5$&6 + ) )* 3 * )* 3 7 )* 7 7+2)7-+46%+ *7 --Clustered Index Seek (OBJECT:([AdventureWorks][Person][Address][PK_Address_AddressID] AS [a]), SEEK:([a][AddressID]=[AdventureWorks][Person][Address][AddressID] as [a][addressid]) LOOKUP ORDERED FORWARD) +)*11 /*0 ") **)*+**%%+*) 3+ 7 & --Index Scan( OBJECT:([AdventureWorks][Sales][CustomerAddress][AK_CustomerAddress_rowguid] AS [ca])) %#+U*)7+9? 1 *& "* * *)? +* /*%0 )* )+*) 7 7&7&2 +*))*= L *"A

75 $& " +*) 3+ ) "+ * * + /G @72'#7&2 + ) " A+)**+ )*7L )>*'>*%4+*78& "# + >*(+*)"A1 *' 7*%4 "A 1

76 $$ "## * * >* %&+ * ) 7 4#84#6 )+)) "A13+*)*) -))+7 7+* ) ) 3 A 3 +=)8 L * * * ) 7+*7 7* /+ L ),!-* ) * 7 ) 9*+ * :A +* * K))K) * *:A4+*)@? A A )) * 7+ *,!- *)**)7@?A )9+*** * 77+@? A =+ ) /* 30+*=+ 7) +,!-*L )+ * )+, 6 8 =)7 A ) + )7,!-*)+ )3+ A +$+* 3 = ) 7 3 )*+* ))@?A

77 $ /+ + L 7 + L 7**7 8 40/ @? A)/ )** / ** 7 SET SHOWPLAN_XML ON ; GO SELECT c[lastname], a[city], cu[accountnumber], st[name] AS TerritoryName FROM [Person][Contact] c JOIN [Sales][Individual] i ON c[contactid] = i[contactid] JOIN [Sales][CustomerAddress] ca ON i[customerid] = ca[customerid] JOIN PersonAddress a ON [ca][addressid] = [a][addressid] JOIN [Sales]Customer cu ON cu[customerid] = i[customerid] JOIN [Sales][SalesTerritory] st ON [cu][territoryid] = [st][territoryid] WHERE st[name] = 'Northeast' AND a[stateprovinceid] = 55 ; GO SET SHOWPLAN_XML OFF 5

78 $# "# )+ A )) 7 +* 7+KUKKK *)+) 3 - * )) ) 55QQ)Q3Q'Q$Q*Q) ))*@? A** # -)) #/ %0+)) )?#5 <QueryPlan CachedPlanSize="52" CompileTime="29293" CompileCPU="6277" CompileMemory="520"> =)+*)+C "7 7 + *!2% ) 7 7 =8 ) 7 )+)7+, 6 8 =+* )+ ) )7 # - %+ ) ) *@?A+*@? A):+*@? A) F*@? A)*I7I3I

79 <MissingIndexes> <MissingIndexGroup Impact="308535"> <MissingIndex Database="[AdventureWorks]" Schema="[Sales]" Table="[CustomerAddress]"> <ColumnGroup Usage="EQUALITY"> <Column Name="[AddressID]" ColumnId="2" /> </ColumnGroup> <ColumnGroup Usage="INCLUDE"> <Column Name="[CustomerID]" ColumnId="1" /> </ColumnGroup> </MissingIndex> </MissingIndexGroup> </MissingIndexes> 7 + >< + )+ =)+* 32E*+))355 <RelOp NodeId="0" PhysicalOp="Nested Loops" LogicalOp="Inner Join" EstimateRows="194953" EstimateIO="0" EstimateCPU="637415e-005" AvgRowSize="119" EstimatedTotalSubtreeCost=" " Parallel="0" EstimateRebinds="0" EstimateRewinds="0"> )* ))**) " + ) 7 + * 1 $$% +@? A ) * ))**3+* *7 7+ ) " V&+ ) 7 + * " A1" V+*5 <RelOp NodeId="26" PhysicalOp="Clustered Index Seek" LogicalOp="Clustered Index Seek" EstimateRows="1" EstimateIO=" " EstimateCPU=" " AvgRowSize="28" EstimatedTotalSubtreeCost=" " Parallel="0" EstimateRebinds="127784" EstimateRewinds="147074"> 8 7)3+**K667V%4'#%&K > " * ) &# +) 5 <OutputList> <ColumnReference Database="[AdventureWorks]" Schema="[Person]" Table="[Contact]" Alias="[c]" Column="LastName" /> <ColumnReference Database="[AdventureWorks]" Schema="[Person]" Table="[Address]" Alias="[a]" Column="City" /> <ColumnReference Table="[cu]" Column="AccountNumber" ComputedColumn="1" /> <ColumnReference Database="[AdventureWorks]" Schema="[Sales]" Table="[SalesTerritory]" Alias="[st]" Column="Name" /> A+ 3 ))KK KK / KK0+ K-K / KK0 KK /KK0+3/A"++-" "0)* * ****

80 )"++*) " A+ +* L % <NestedLoops Optimized="0"> <OuterReferences> <ColumnReference Database="[AdventureWorks]" Schema="[Sales]" Table="[Customer]" Alias="[cu]" Column="TerritoryID" /> </OuterReferences> / @?A+ )*8*L+1)) SET STATISTICS XML ON ; GO SELECT c[lastname], a[city], cu[accountnumber], st[name] AS TerritoryName FROM [Person][Contact] c JOIN [Sales][Individual] i ON c[contactid] = i[contactid] JOIN [Sales][CustomerAddress] ca ON i[customerid] = ca[customerid] JOIN PersonAddress a ON [ca][addressid] = [a][addressid] JOIN [Sales]Customer cu ON cu[customerid] = i[customerid] JOIN [Sales][SalesTerritory] st ON [cu][territoryid] = [st][territoryid] WHERE st[name] = 'Northeast' AND a[stateprovinceid] = 55 ; GO SET STATISTICS XML OFF ; GO 8 * - + *?# ) <!##/ $0 +))7)35 <QueryPlan DegreeOfParallelism="0" MemoryGrant="82" CachedPlanSize="57" CompileTime="29293" CompileCPU="6277" CompileMemory="520"> 1)) *-@? A7 62+*+ * )7))8 ) + 3) <RunTimeInformation> <RunTimeCountersPerThread Thread="0" ActualRows="4" ActualEndOfScans="1" ActualExecutions="1" /> </RunTimeInformation> <NestedLoops Optimized="0">! -+@? A+,!-L*L *+),!-**

81 +*** ) + A ) ) )@?A +,!-) ))7 )@?A+*,!- *,!- *

82 '5C?7: ( ( = '%(%,% +$( $+/ '(: % -*L+3*7+ * 7:A;77 9*+ 1 :A * ) + 7 7)*7 * * :A 3 *L )*L*7+ ))+)7+))-8 * 8L * ) -85 CREATE PROCEDURE NVARCHAR(3) AS SET NOCOUNT ON ; GO SELECT [st][salestaxrateid], [st][name], [st][taxrate], [st][taxtype], [sp][name] AS StateName FROM [Sales][SalesTaxRate] st JOIN [Person][StateProvince] sp ON [st][stateprovinceid] = [sp][stateprovinceid] WHERE [sp][countryregioncode] ORDER BY [StateName] 8 *75 EXEC = 'US' 73+*%5 "#

83 ' # )++*&#2%4 +* ) + F&!&+ ** 4, ) 4#6% 2% 4 ) 351*)4 "7+*@5 )+ + )*+71 ) 3 5 * ) ) 8 L7+*L +:A**)* *4$5$&6:** <)*:A'# ) )* +) L) )*4$5$&6 F *4$5$&6*) )4$5$&63<+4$5$&6 *+* L )3 * * + ) * # 4 # C )*+*** 7 +) +*L *3)1) 5 SELECT [p][name], [p][productnumber], [ph][listprice] FROM [Production][Product] p INNER JOIN [Production][ProductListPriceHistory] ph ON [p][productid] = ph[productid] AND ph[startdate] = ( SELECT TOP ( 1 ) [ph2][startdate] FROM [Production][ProductListPriceHistory] ph2 WHERE [ph2][productid] = [p][productid] ORDER BY [ph2][startdate] DESC )

84 '5C?7: 4 " 8 *3))* 7+** *!1? E ) 7 * + 3 -? E*)*! +*/7) 1R ) *0 * )*)))*)- *))** *8 ++)) -* L 7+? E * )* )* )9 E+*3=8* * 6 /) *0 KK

85 & "$ "7+** 7* +)&$S))3 (#4 * ) 3+ 6(A+ ) * * -* ** **)* 3) ) ) * 6 )** 3+K%K #* *+1 *C D8C D C D8C 5 0D + * C4<D3'5

86 '5C?7: $ "% * ) 1 "A + ) # : "***)7* +* *3 ))*+ *L * :A 4 5 * 3+*))7 :A4*) +)*) ) 5 +&44 5 6$ 5 5 * )+ + * )*) *) KK ))*-AF+55QQ) QQ Q%$4%4&7!* 7 ) * 3 > *)) SELECT [p][name], [p][productnumber], [ph][listprice] FROM [Production][Product] p CROSS APPLY ( SELECT TOP ( 1 ) [ph2][productid], [ph2][listprice] FROM [Production][ProductListPriceHistory] ph2 WHERE [ph2][productid] = [p][productid] ORDER BY [ph2][startdate] DESC ) ph

87 )*)7 +* 45 "& 6 * * * * ) 5 ) % 4 63 )35 *)*3));<*) 3*4$ & < )? 3 8 *)3+* +5 (293 row(s) affected) Table 'ProductListPriceHistory' Scan count 396, logical reads 795, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob readahead reads 0 Table 'Product' Scan count 1, logical reads 15, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0 )*3 +5 (293 row(s) affected) Table 'ProductListPriceHistory' Scan count 504, logical reads 1008, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob readahead reads 0 Table 'Product' Scan count 1, logical reads 15, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0-3+3* 3 )*/$#403* /%0 )*)*/0$$) 35 WHERE [p][productid] = '839' 8 *3*/0$$+** &5

88 '5C?7: # ") # ++ )7 )) / * + &#2%4 *3 )*/0$$ 3+**$5 "* 4+* &# 2% 4 &# 2% 4 + ) /0$$*=)7) *+)* "*+L <))3+* * 8 *3* +*5 (1 row(s) affected) Table 'ProductListPriceHistory' Scan count 1, logical reads 4, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0 Table 'Product' Scan count 0, logical reads 2, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0 8 *3*3+*5 (1 row(s) affected) Table 'ProductListPriceHistory' Scan count 1, logical reads 2, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0 Table 'Product' Scan count 0, logical reads 2, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0 "*+*)/0$$+3))+* + 3*'

89 # ):A 7 * + 7 )! > ) )) 3*** * )+ *+ +*) /0$$ 8 /0$$ + + * 5)C7)) *) # " :A4:A+* + 7/60-6KK7 *):A *)* :A * ) )+ ++C +6 )) )*3 # <))6 '-8 ) ) 7+ 3+$#!+)*5 ALTER PROCEDURE [int] AS BEGIN SET NOCOUNT ON; -- Use recursive query to list out all Employees required for a particular Manager WITH [EMP_cte]([EmployeeID], [ManagerID], [FirstName], [LastName], [Title], [RecursionLevel]) -- CTE name and columns AS ( SELECT e[employeeid], e[managerid], c[firstname], c[lastname], e[title], 0 -- Get the initial Employee FROM [HumanResources][Employee] e INNER JOIN [Person][Contact] c ON e[contactid] = c[contactid] WHERE e[employeeid] UNION ALL SELECT e[employeeid], e[managerid], c[firstname], c[lastname], e[title], [RecursionLevel] Join recursive member to anchor FROM [HumanResources][Employee] e INNER JOIN [EMP_cte] ON e[employeeid] = [EMP_cte][ManagerID] INNER JOIN [Person][Contact] c ON e[contactid] = c[contactid] ) -- Join back to Employee to return the manager name SELECT [EMP_cte][RecursionLevel], [EMP_cte][EmployeeID], [EMP_cte][FirstName], [EMP_cte][LastName], [EMP_cte][ManagerID], c[firstname] AS 'ManagerFirstName', c[lastname] AS 'ManagerLastName' -- Outer select from the CTE FROM [EMP_cte] INNER JOIN [HumanResources][Employee] e ON [EMP_cte][ManagerID] = e[employeeid] INNER JOIN [Person][Contact] c ON e[contactid] = c[contactid] ORDER BY [RecursionLevel], [ManagerID], [EmployeeID] OPTION (MAXRECURSION 25) END; % 6 5 5QQ*** Q3Q34Q34 7Q

90 '5C?7: A5 #% SET STATISTICS XML ON; GO EXEC = 9; GO SET STATISTICS XML OFF; GO 8)77L * 8*7@? A )5 " )&# 2% 4 0 8$# 8& 4 # KK )3)+ 5'#+3 ) 7+*+ ))& ) & ):A )#5 "+ *6# 4# ) -+)* 1 A7+) */)"A70 3+ ) - 1 ) ))32355)*6

91 # )" <RunTimeInformation> <RunTimeCountersPerThread Thread="0" ActualRows="4" ActualRebinds="1" ActualRewinds="0" ActualEndOfScans="1" ActualExecutions="1" /> </RunTimeInformation> * )* + +* +* * ** R** )*-* ))*%5 "# -) & * 2%4# ** +* *1 ) *1K3KP*))* + * * ) * * / + 7) **1)**7**L** * 34 *+ 4#8'2'#&+ ) + ) + + )-3)*5 SELECT * FROM [Sales][vIndividualCustomer] WHERE [CustomerID] = ; 7*%%5

92 '5C?7: #( "## 8 *+'2'#&+ * * ) 3; > * :A * + * 1 ) =+ +7 ))+3=* 1+* 1)** *)37) 3 + * * + L * )3=))**, 34-7B*+=*+K*7K - 7 * 7 + 7*++* 7*) ) ) 3+ 7 *+ 1) 3 7*+++ *? 7*)) ) 7* +*7*< +)7* ))+ ) *7*7+)) 1234$6+234$6* 7*-,!-+)* 7** 7* ) :)7* )+*7+ *4$5$&63+) 3 7+ ) 7 * *-8 '4' &! 4' &! )35

93 #' SELECT * FROM [Person][vStateProvinceCountryRegion] 7*%5 "# 7 * 7 *+ 7 * * 757)*+=* 77* 7 =+ 3L )7*7+)*3*7 7*%5 SELECT sp[name] AS [StateProvinceName], cr[name] AS [CountryRegionName] FROM [Person][StateProvince] sp INNER JOIN [Person][CountryRegion] cr ON sp[countryregioncode] = cr[countryregioncode] ; ==7 * 9*+ 7 7+)*35 SELECT a[city], v[stateprovincename], v[countryregionname] FROM [Person][Address] a JOIN [Person][vStateProvinceCountryRegion] v ON [a][stateprovinceid] = [v][stateprovinceid] WHERE [a][addressid] = ; )71 *7*8 + * 5 "#$ )7)=*+**)%+ = ) ) 7 7 * *

94 '5C?7: #4 * 3 ) * ) + )7** %%, - ) )) 7 L+)7* -)33*+K*)7 ;K ) 7 )) 3 = 7=)9*+)7 + *+ ) ),, &55 5" <) *3 5 K KL3)*-* + :A 4 ) +)* +!A*7)*+ *+)+ 7/ <= ) : 6 7+)7/@5 0+*++ )/2< !A + 3) ) 7)* 7 ) 7+ +) 8*35 SELECT [sod][productid], [sod][orderqty], [sod][unitprice] FROM [Sales][SalesOrderDetail] sod WHERE [sod][productid] = *%'+*) ) %%*+** 7**"<6@-", + 9)4

95 #& "#% 2% 4 ) * * + 3 )) C)+ 7 2 "#& -))%4+7) 7+4#24#<#27 =*7) 8DAC+* =3 3+? +)7 :A+** ) #<#7 2+ 9*+ :A 4+*)23&5<$ * 7

96 '5C?7: 23&5<$ * 7 :A 4 ) ) *7+)+ )7)+)))) ) ) )7+ )*+**723&5<$ 7)**L+* &4-5+ ))**)* &4-5 )) 7))* #$ IF EXISTS ( SELECT * FROM sysindexes WHERE OBJECT_ID = OBJECT_ID(N'[Sales][SalesOrderDetail]') AND name = N'IX_SalesOrderDetail_ProductID' ) DROP INDEX [IX_SalesOrderDetail_ProductID] ON [Sales][SalesOrderDetail] WITH ( ONLINE = OFF ) ; CREATE NONCLUSTERED INDEX [IX_SalesOrderDetail_ProductID] ON [Sales][SalesOrderDetail] ([ProductID] ASC) INCLUDE ( [OrderQty], [UnitPrice] ) WITH ( PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON ) ON [PRIMARY] ; GO SET STATISTICS XML ON ; GO SELECT [sod][productid], [sod][orderqty], [sod][unitprice] FROM [Sales][SalesOrderDetail] sod WHERE [sod][productid] = 897 ; GO SET STATISTICS XML OFF ; GO --Recreate original index IF EXISTS ( SELECT * FROM sysindexes WHERE OBJECT_ID = OBJECT_ID(N'[Sales][SalesOrderDetail]') AND name = N'IX_SalesOrderDetail_ProductID' ) DROP INDEX [IX_SalesOrderDetail_ProductID] ON [Sales][SalesOrderDetail] WITH ( ONLINE = OFF ) ; CREATE NONCLUSTERED INDEX [IX_SalesOrderDetail_ProductID] ON [Sales][SalesOrderDetail] ([ProductID] ASC) WITH ( PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON ) ON [PRIMARY] ; GO EXEC = = N'Nonclustered = = = = = = N'IX_SalesOrderDetail_ProductID' ; Run this code in Management Studio with the "Include Actual Execution Plan" option turned on, and you will see the execution plan shown in Figure 16:

97 # "#) 7 ) * 7*+,! AL * 3 ) * 7 + * = 7 +L )*))*) * ) L "#* - %+)7 )7)))7 # '8-7L )* + )* ) 3)*-)+3 )*7)7 +)7* = 7+ 4#84#<# # <#7 2<+ 2<)7,!+40/ &45 DBCC SHOW_STATISTICS('SalesSalesOrderDetail', 'IX_SalesOrderDetail_ProductID') *)C+ 5 All density Average Length Columns ProductID E-06 8 ProductID, SalesOrderID E ProductID, SalesOrderID, SalesOrderDetailID

98 '5C?7:, + * + 7 +*)($4#(##+* =*)7-7 * 7L* )7)+)) +L*)7 ))73 )) ) 7 * AL L 7 )3)+ L ) ) AL -8L *= 3 ) 3 ) 0125 ## SELECT sodorderqty, sod[salesorderid], sod[salesorderdetailid], sod[linetotal] FROM [Sales][SalesOrderDetail] sod WHERE sod[orderqty] = 10 7)3*%5 "# 8&#2%4 # )+*?EA* AL*735 CREATE NONCLUSTERED INDEX [IX_SalesOrderDetail_OrderQty] ON [Sales][SalesOrderDetail] ( [OrderQty] ASC ) WITH ( PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF,IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON,ALLOW_PAGE_LOCKS = ON ) ON [PRIMARY] C)+)+LL* %R*+*7** *+ )+ 7 + L 7 * 7 <&& 40/ &45 All density Average Length Columns OrderQty E-05 6 OrderQty, SalesOrderID E OrderQty, SalesOrderID, SalesOrderDetailID 8)?%) 2+?73) +%%(%$*4#<# '% )?1L+ )+37 ))3

99 % )*3*+** 7 ) = F ) = 7* 3+ +*L)) 3/ 40 > 7+ * ++*7 + )3 ) L)* -8+ L* 7* 5 DROP INDEX [Sales][SalesOrderDetail][IX_SalesOrderDetail_OrderQty], ))) *)) * ")) *+ 7 )* 7 * + *+ +73**))7 7+ * +*75 IF EXISTS ( SELECT * FROM sysobjects WHERE object_id = OBJECT_ID(N'[NewOrders]') AND type in ( N'U' ) ) DROP TABLE [NewOrders] GO SELECT * INTO NewOrders FROM SalesSalesOrderDetail GO CREATE INDEX IX_NewOrders_ProductID on NewOrders ( ProductID ) GO /?@A)0-) Estimated Plan SET SHOWPLAN_XML ON GO SELECT [OrderQty],[CarrierTrackingNumber] FROM NewOrders WHERE [ProductID] = 897 GO SET SHOWPLAN_XML OFF GO BEGIN TRAN UPDATE NewOrders SET [ProductID] = 897 WHERE [ProductID] between 800 and 900 GO -- Actual Plan SET STATISTICS XML ON GO SELECT [OrderQty],[CarrierTrackingNumber] FROM NewOrders WHERE [ProductID] = 897

100 '5C?7: %% ROLLBACK TRAN GO SET STATISTICS XML OFF 4 + %0+ )! ):A*) A5 "#+ -75 "! )%#) 7+ + * 7* 4$5$& )+ 2< 5 ) *) )* 9*+) * +*) '((%*%'('")+L +** 7 + *+ + 7**7 *)) **+*)+ + ) 7 7 ) = 3 * *) 7 L

101 % L) F) F) 7+

102 4567*9 ( > $%($,% /',$% % *,,% %(! *=++ 5?0=7) 3 10=13 6#0 )7) L *) )+ L )*5!-) * 3 * )))1)3+L!!:!8 )) + L L )7* ) + * ) 3 )3)))) *)*) :)623 7)*5 SELECT OPTION (<hint>,<hint>) : L 234$6 7* * 4$5$&6 FL3!)*+*51) O?$(( ($' *P040<$P /*<24623&6& 6$0 =+ 7 **3)3 )))7L SELECT [c][suffix], COUNT([c][Suffix]) AS SuffixUsageCount FROM [Person][Contact] c GROUP BY [Suffix] 3 ) L * ) 3 ) )

103 %' ))+)+7+ *%5 "# -+ K)K=) 7*9? /-0 * + ) 7 ) 4#$+*5 " L ) * + * )) 9? <$35 SELECT [c][suffix], COUNT([c][Suffix]) AS SuffixUsageCount FROM [Person][Contact] c GROUP BY [Suffix] OPTION ( ORDER GROUP ) **(5 "$

104 4567*9 8L=+<$+ ) +L )46)4!!!+*** -*+3)4#$ )%$$$'4)+) ) 7,+)*+7 + =9? ) - +:6*=* )+)8 3* )=+L =3+*))7 )7 +(??$% '%,$% )) * C" <" 3+ =+) * *)* )) )*C" <"7 7 3 * ) ) ) 5 %4 SELECT [pm1][name], [pm1][modifieddate] FROM [Production][ProductModel] pm1 UNION SELECT [pm2][name], [pm2][modifieddate] FROM [Production][ProductModel] pm2 "% F = + 7)++ )*7 )($$ ) ) C" <" * )) )+ $$3235 SELECT [pm1][name], [pm1][modifieddate] FROM [Production][ProductModel] pm1 UNION SELECT [pm2][name], [pm2][modifieddate] FROM [Production][ProductModel] pm2 OPTION ( MERGE UNION )

105 %& "& F ) 323! 1 ) & 9*+? E**)+ *L)=*4)3 )($$4'L* 8 ) SELECT [pm1][name], [pm1][modifieddate] FROM [Production][ProductModel] pm1 UNION SELECT [pm2][name], [pm2][modifieddate] FROM [Production][ProductModel] pm2 OPTION ( HASH UNION ) *7+*&5 ") 7 )+* 9*+ /'#$0)3+) ) 3+ 9? L )) ) +*) )3+ ))3 $$?+(? 7$,% 13 9*+)1/0)1+ 13 FL)))) Q<+ )3!)) )? L ))*3*9 375

106 4567*9 %$ SELECT s[name] AS StoreName, ct[name] AS ContactTypeName, c[lastname] + ', ' + c[lastname] FROM [Sales][Store] s JOIN [Sales][StoreContact] sc ON [s][customerid] = [sc][customerid] JOIN [Person][Contact] c ON [sc][contactid] = [c][contactid] JOIN [Person][ContactType] ct ON [sc][contacttypeid] = [ct][contacttypeid] "* -+37)350 AL Q<)3 ) +? G? + K <K 7 Table 'Contact' Scan count 0, logical reads 1586, Table 'Worktable' Scan count 0, logical reads 0, Table 'Address' Scan count 1, logical reads 216, Table 'CustomerAddress' Scan count 753, logical reads 1624, Table 'Store' Scan count 1, logical reads 103, Table 'StoreContact' Scan count 20, logical reads 42, Table 'ContactType' Scan count 1, logical reads 2, +& *3 *3)9 E** A E)35 OPTION ( LOOP JOIN ) "

107 % "*0151 ) 37L3+* +)* 8 )3 + ) )+) %$ %' 9*+*+))5 Table 'ContactType' Scan count 0, logical reads 1530, Table 'Contact' Scan count 0, logical reads 1586, Table 'StoreContact' Scan count 712, logical reads 1432, Table 'Address' Scan count 0, logical reads 1477, Table 'CustomerAddress' Scan count 701, logical reads 1512, Table 'Store' Scan count 1, logical reads 103, " * ) + ) * + *L )8 )**) 3 $$123;))35 OPTION ( MERGE JOIN ) "+ 7)* )+ ; Table 'Worktable' Scan count 11, logical reads 91, Table 'CustomerAddress' Scan count 1, logical reads 6, Table 'StoreContact' Scan count 1, logical reads 4, Table 'ContactType' Scan count 1, logical reads 2, Table 'Store' Scan count 1, logical reads 103, Table 'Address' Scan count 1, logical reads 18, Table 'Contact' Scan count 1, logical reads 33, 8L* + ) 89*+ )*7+* *040123*? ))) 35 OPTION ( HASH JOIN )

108 4567*9 %# "# 8L ) 7 9 E 7 * 3 Q<5 Table 'Worktable' Scan count 0, logical reads 0, Table 'Contact' Scan count 1, logical reads 569, Table 'Store' Scan count 1, logical reads 103, Table 'Address' Scan count 1, logical reads 216, Table 'CustomerAddress' Scan count 1, logical reads 67, Table 'StoreContact' Scan count 1, logical reads 4, Table 'ContactType' Scan count 1, logical reads 2, 7 +? 6>6E< " ) Q<)3+*))* + *L ) ) + *L ) ) * )+)L+) *) 46 ) = ) 7 ) LL * ) +* LL )*375 SELECT * FROM [Sales][SalesOrderDetail] sod JOIN [Sales][SalesOrderHeader] soh ON [sod][salesorderid] = [soh][salesorderid] "## 3)3+ )+ *)7 )%*3 5 OPTION ( FAST 10 )

109 %% "# )0 )1+=3 5 1 ) * )+ ) * * * + * )* +L))) )3)3*%#$( %/))%*0 )+%() 3%%+$)3+ )7) 3+)'4** )* **+ ) )** ))) ) )))O $( $(( FL ) 3 ) L * 3* )* "+=**1 &$ <$ = ) 1 3)* )L))1 == *+* ) 3)79335 SELECT pc[name] ProductCategoryName, psc[name] ProductSubCategoryName, p[name] ProductName, pd[description], pm[name] ProductModelName, c[name] CultureName, d[filename], pri[quantity], pr[rating], pr[comments] FROM [Production][Product] p LEFT JOIN [Production][ProductModel] pm ON [p][productmodelid] = [pm][productmodelid] LEFT JOIN [Production][ProductDocument] pdo ON p[productid] = pdo[productid] LEFT JOIN [Production][ProductSubcategory] psc ON [p][productsubcategoryid] = [psc][productsubcategoryid] LEFT JOIN [Production][ProductInventory] pri ON p[productid] = pri[productid] LEFT JOIN [Production][ProductReview] pr ON p[productid] = pr[productid] LEFT JOIN [Production][Document] d ON pdo[documentid] = d[documentid] LEFT JOIN [Production][ProductCategory] pc ON [pc][productcategoryid] = [psc][productcategoryid] LEFT JOIN [Production][ProductModelProductDescriptionCulture] pmpd ON pmpd[productmodelid] = pm[productmodelid] LEFT JOIN [Production][ProductDescription] pd ON pmpd[productdescriptionid] = pd[productdescriptionid] LEFT JOIN [Production][Culture] c ON c[cultureid] = pmpd[cultureid]

110 4567*9! * ) + L) L %%% "$ < )** )))) 44( 3&$<$35 OPTION (FORCE ORDER) *%' "% +/$,L %'R )7%(-1*7 6A6 ) 3 C)+ ) * )) =)3 %%&$& )))1 )))3 +*L) * F ) + 3 1)+ *F+:A) 7)++*F) *77*335

111 %% "& 8 7*+*/* 05 ") 9+ L * / 0 ) ) + + ) ))+ )) + L )) L* -< ) -< 3 ) * 3+ ***)K? 7,)K )*+ L ))35 sp_configure 'cost threshold for parallelism', 1 ; GO RECONFIGURE WITH OVERRIDE ; GO SELECT wo[duedate], MIN(wo[OrderQty]) MinOrderQty, MIN(wo[StockedQty]) MinStockedQty, MIN(wo[ScrappedQty]) MinScrappedQty, MAX(wo[OrderQty]) MaxOrderQty, MAX(wo[StockedQty]) MaxStockedQty, MAX(wo[ScrappedQty]) MaxScrappedQty FROM [Production][WorkOrder] wo GROUP BY wo[duedate] ORDER BY wo[duedate] GO sp_configure 'cost threshold for parallelism', 5 ; GO RECONFIGURE WITH OVERRIDE ; GO *7))+ )%& = 7) A ) &# 2% 4? #3: 7 /U0 **))+ )* 9*+***3+*8 )*)+* ))3 5

112 4567*9 %%( SELECT wo[duedate], MIN(wo[OrderQty]) MinOrderQty, MIN(wo[StockedQty]) MinStockedQty, MIN(wo[ScrappedQty]) MinScrappedQty, MAX(wo[OrderQty]) MaxOrderQty, MAX(wo[StockedQty]) MaxStockedQty, MAX(wo[ScrappedQty]) MaxScrappedQty FROM [Production][WorkOrder] wo GROUP BY wo[duedate] ORDER BY wo[duedate] OPTION ( MAXDOP 1 ) *7+++ * )/* ))05 "* -+L)7L &#2%4 * * 4? + 0 1) * ) )+)4 )4# ))7++ ) * * * 7 3)) 8 = * + L * $,+,@ $( F ) 3 * 3 ) + +* * ) 8 ) 7+ ) ) ) * ++ )+* 7 * ) 62 2G$**:A4 * ==37)+ ))*3 7)* ) +7+*+ )+ )+ ++ ** 7 :A+** 5 ' >>6<? A6 $& 25$)3+7=)

113 %%' 3+ *) :A 4+* ) +62 2G$ 8)*)35 SELECT * FROM [Person][Address] WHERE [City] = 'Newark' SELECT * FROM [Person][Address] WHERE [City] = 'London' 8L*L*))75 " )!))3+)31 7+*)%#'( 37+*** )*):A*L+5 NVARCHAR(30) = 'Newark' SELECT * FROM [Person][Address] WHERE [City] = 'London' SELECT * FROM [Person][Address] WHERE [City] 8L7) 35

114 4567*9 %%4 "+ L7) 3* L*) F& AL) 3+*== )"*5 NVARCHAR(30) = 'London' SELECT * FROM [Person][Address] WHERE [City] = 'London' SELECT * FROM [Person][Address] WHERE [City] OPTION ( OPTIMIZE FOR = 'Newark' ) ) " LAL * ) / ) 3 LAL0*7 7)3,)3+L*))* 362 2G$* )= )*+*7 * ) + L"*L+ ))+LAL C ) 3 * ) * 62 2G$*))+ F * 3

115 %%& $( =+) + + L L3 )*3+ * ($+, F 3 ) * ) 7*3=) 3) 13 +/ :A:A03) 63:A+))+ )) +* ) 3+ ) 7 * * ) ) * ) ),)3 + L * ) 7 > ))*3+)) 3 )) $& 25$*:A4 = * 77)3 )*++L )))* 7+ +):A3+ +* >)+ ) 7* F +* L + $& 25$3))) *3 )3 ) ) 3 :A+ 1 8 *+ =) ) 3+=* * )*)35 INT = 277 SELECT [soh][salesordernumber], [soh][orderdate], [soh][subtotal], [soh][totaldue] FROM [Sales][SalesOrderHeader] soh WHERE [soh][salespersonid] = 288 SELECT [soh][salesordernumber], [soh][orderdate], [soh][subtotal], [soh][totaldue] FROM [Sales][SalesOrderHeader] soh WHERE [soh][salespersonid] )75

116 4567*9 %%$ "# 8 )*)+*)3 )) + ) ) 3 $& 25$ + L 3) 3 $& 25$ + * $& 25$)3 INT = 277 SELECT [soh][salesordernumber], [soh][orderdate], [soh][subtotal], [soh][totaldue] FROM [Sales][SalesOrderHeader] soh WHERE [soh][salespersonid] OPTION ( RECOMPILE ) = 288 SELECT [soh][salesordernumber], [soh][orderdate], [soh][subtotal], [soh][totaldue] FROM [Sales][SalesOrderHeader] soh WHERE [soh][salespersonid] OPTION ( RECOMPILE ) )*)35 " "3*2-74#074#2<7 )S) ) 3+)4S *35) 7*** )*

117 %% ($&' % *****75 & -* =?-@= *4 $ -* 1/A<! $-6 +**+L )+ ** )4653 *L = 8 * +*3=*L K K ))** ) % L+ = *)+*+ = * * + ) )+ * *+ ))* ),/ ) ) +@$$2-$<53 C*7*):A ))3 )) =+) - *@$$53+ * ) )37 #3+) /% 3,* F*<)3LL 7 ) 3 =+ 7+ * 8 ) 7+ * ) <) *++* *3*)) +))*L +L + **3 $-3<=2$/43)7**3 )= )=7* )**)/*+3)*0 1 * * * * /260(3$-3<+7**3 +7*)**) + 9*+)7*+

118 4567*9 +))L ) C)7**-8+*35 %%# SELECT * FROM [Person][vStateProvinceCountryRegion] (*75 "$ -7*7+7) )* 3+623($-3<=2$/4++*'5 "% "**L78 <=+* 7 ) * &# 2% 4 8&!84' 1!1+)4' 4 ) 3 ) '% 7 * * '+ )) )7)=* +/('(,$% 8 ) 67:A+ )3* -$&423 )*3 B *(+$&$=*)) ) )%8 + 7* C L7 + )+7 ' % = A *

119 7 % ->):A)1 *L+) >5*) /K K0* /K K0*)1 )** B)))!>5*+* ) )*>3316))) 0 >5*)+*+ 3 1+,) *? ))/ *0!)1:A*=L )))1 +)L )) % -)13/++0*1 E) **? + ) -*5 SELECT [pm][name], [pm][catalogdescription], p[name] AS ProductName, i[diagram] FROM [Production][ProductModel] pm LEFT JOIN [Production][Product] p ON [pm][productmodelid] = [p][productmodelid] LEFT JOIN [Production][ProductModelIllustration] pmi ON [pm][productmodelid] = [pmi][productmodelid] LEFT JOIN [Production][Illustration] i ON [pmi][illustrationid] = [i][illustrationid] WHERE [pm][name] LIKE '%Mountain%' ORDER BY [pm][name] ; 8L)*75 %)1+>1+**) )1) )) 7 + **L * )

120 4567*9 %% "& H H *L 7R 7 # L '&S ) ) 3 < 1+ <$ 4 * &# 2% 4 #2# 1*A * 72# 1 * A ) #'$ 8 )**L= "A1)9? 1;8) 51 * #5 SELECT [pm][name], [pm][catalogdescription], p[name] AS ProductName, i[diagram] FROM [Production][ProductModel] pm LEFT LOOP JOIN [Production][Product] p ON [pm][productmodelid] = [p][productmodelid] LEFT JOIN [Production][ProductModelIllustration] pmi ON [pm][productmodelid] = [pmi][productmodelid] LEFT JOIN [Production][Illustration] i ON [pmi][illustrationid] = [i][illustrationid] WHERE [pm][name] LIKE '%Mountain%' ORDER BY [pm][name] ; )*7*3+*L)*5 ") +***9? +**"A -+ )1)A +*)1 -+ " A 1 ) 4&S ) +

121 % *9? )'&S-+ )%&(' )5* $$+L)*5 "* # "A? E) $&'$+))) )? E+*3+ 9? "A ) ))+*3 * Q<)3)3+ +5 Original (Hash) Table 'Illustration' Scan count 1, logical reads 273 Table 'ProductModelIllustration' Scan count 1, logical reads 183 Table 'Worktable' Scan count 0, logical reads 0 Table 'ProductModel' Scan count 1, logical reads 14 Table 'Product' Scan count 1, logical reads 15 Loop Table 'Illustration' Scan count 1, logical reads 273 Table 'ProductModelIllustration' Scan count 1, logical reads 183 Table 'Product' Scan count 1, logical reads 555 Table 'ProductModel' Scan count 1, logical reads 14 Merge Table 'Illustration' Scan count 1, logical reads 273 Table 'ProductModelIllustration' Scan count 1, logical reads 183 Table 'Product' Scan count 1, logical reads 15 Table 'ProductModel' Scan count 1, logical reads 14 *? A137 ) 91))** +A1+444*3)%4)? 91))+ +* 9 3 * *? 1 =*! 7)+ 9 1* )) )+ * +L?1*) + *L 1+ * * = +* )*=KK * 77+)) +) 7* - * = )+ ))

122 4567*9 + )) 1 ) *) L))7+**L * 7)) +)!<*:A4 #! 7:A4/260** )5 %( FROM TableName WITH (hint, hint, ) /260*3+3+ * 7+ * /260 ) 6 * L 3 /260*+ ) %$/% 8 7*)*3+)3$-3< *$-3<=2$/437** ) K7K*)* )*)7*) *)7) :A46,*77*) = 7 * ) 3 7 * 3)*)5 -" I"CAA -" I8->" " <"-I"CAAIF 6A,I"CAA -" I-,, " -> 9-!<> :C<6,I,6" 6> "C?6> I><C",-!<>)) C3$-3<)=7)7* '+ * 3 ) ) 7 B*+ '4' &!I-8=7* * * 7 ) ( 1 8 3$-3< SELECT a[city], v[stateprovincename], v[countryregionname] FROM [Person][Address] a JOIN [Person][vStateProvinceCountryRegion] v WITH ( NOEXPAND ) ON [a][stateprovinceid] = [v][stateprovinceid] WHERE [a][addressid] = ; Now, instead of a 3- table join, we get the following execution plan:

123 %' ",%/89 "*+ * 7 ) *+ *L )+*)#4&4$ %(+ *)7 * 7 7+*7+)+ )75 FROM TableName WITH (INDEX(0)) 9*+ ) 7 *7 /7** 05 FROM TableName WITH (INDEX ([IndexName])) F7) + )7 * AL3,"+6"5 SELECT [de][name], [e][title], [c][lastname] + ', ' + [c][firstname] FROM [HumanResources][Department] de JOIN [HumanResources][EmployeeDepartmentHistory] edh ON [de][departmentid] = [edh][departmentid] JOIN [HumanResources][Employee] e ON [edh][employeeid] = [e][employeeid] JOIN [Person][Contact] c ON [e][contactid] = [c][contactid] WHERE [de][name] LIKE 'P%' 875

124 4567*9 %4 "+ 8) 7 71 " A*L* ))* 70 8< L 8 23<$-+)*5 SELECT [de][name], [e][title], [c][lastname] + ', ' + [c][firstname] FROM [HumanResources][Department] de WITH ( INDEX ( PK_Department_DepartmentID ) ) JOIN [HumanResources][EmployeeDepartmentHistory] edh ON [de][departmentid] = [edh][departmentid] JOIN [HumanResources][Employee] e ON [edh][employeeid] = [e][employeeid] JOIN [Person][Contact] c ON [e][contactid] = [c][contactid] WHERE [de][name] LIKE 'P%' )*75 "$ 8&#2%4 )2% * $(#&'( $(#(#8 7)+)) )**+ 9*+ 7 L ) ) 3 * 3*))),(($* E /)= * ) * ) ) 3

125 %& / 3-3 +? ) 46246/ ) ):A"+*L7)*3 ) 5 SELECT [pm][name] AS ProductModelName, [p][name] AS ProductName, SUM([pin][Quantity]) FROM [Production][ProductModel] pm JOIN [Production][Product] p ON [pm][productmodelid] = [p][productmodelid] JOIN [Production][ProductInventory] pin ON [p][productid] = [pin][productid] GROUP BY [pm][name], [p][name] ; 75 "$# -+2%4 # ) ) 1 &# 2% 4 ) +0 ) 2' &#2% ) 4!!! )**) 3 )) )3* + 5 SELECT [pm][name] AS ProductModelName, [p][name] AS ProductName, SUM([pin][Quantity]) FROM [Production][ProductModel] pm JOIN [Production][Product] p WITH ( FASTFIRSTROW ) ON [pm][productmodelid] = [p][productmodelid] JOIN [Production][ProductInventory] pin ON [p][productid] = [pin][productid] GROUP BY [pm][name], [p][name] )*75

126 4567*9 %$ "$! = )) ) # )+ L * )) 35*)*) ) # )+ * 1+)*7 +* 1 1 )%%&$3%%## <++*)** 3+) # ) * + 3 4' % # * + L 3) Q< +*)W%(W+** ) 8 <=)+ )3 +E:* > - ) <= *L) 1) *-? ) + ) =! 3) ) *3**3 R ) + )

127 % ( A '($( $(,$% "? * :A + * * 9*+ *7* + 3 ) + +* 9*+ * / )0 )) ))))+ * 7 + ) + * / 0 / 0 ) )) * ) ** ++)+* ))7 - * 7 + ) A))) 7 * * ) )+ 7+*+)+ $6&0 3$-6 + ) -8 L ** 3 ) * * * )) 7 DECLARE CurrencyList CURSOR FOR SELECT CurrencyCode FROM [Sales][Currency] WHERE Name LIKE '%Dollar%' OPEN CurrencyList FETCH NEXT FROM CurrencyList = 0 BEGIN -- Normally there would be operations here using data from cursor FETCH NEXT FROM CurrencyList END CLOSE CurrencyList DEALLOCATE CurrencyList GO + *%5

128 &5< %# "# $" C K, 6 67 K 7) 3)7) 7+*5 " 8L * ) ) 5 DECLARE CurrencyList CURSOR FOR SELECT CurrencyCode FROM [Sales][Currency] WHERE Name LIKE '%Dollar%'

129 %( "$ )* )*) ++*L 7 +* 7 4#8& "% 7 %' * )* +*3)) 3+ )3 )**/ 4+ *0

130 &5< %(% "& 8 *+*7+ 7 * * )/4+ *0 L)K* K ") -)+*)? : *) + 7 +*69 )*+))/*LL)05

131 %( "* +)<+*)*, <, ) ) )R + ) +* ++* ))++*))+ ))5 " C,?A3 )+**):A)+ :A) = && # 7))7+)+) * && # + )? )L* ::(*)$3&4+ $6&0&45 OPEN CurrencyList FETCH NEXT FROM CurrencyList

132 &5< %(( "+ :'*7*:A$6&0&4* +*+)/025$+&3< WHILE = 0 BEGIN --Normally there would be operations here using data from cursor FETCH NEXT FROM CurrencyList END "# +:4:&+) CLOSE CurrencyList DEALLOCATE CurrencyList "##

133 %('!$" 8 *7+K,67K+ 7L *)*5 "# )) + ) * ) / * ) *+))+ )*L0 < + +$6&0&4+ :A * )+$6&03 4$5$&6 9)+ 7 * L)7+* +)))$6&0 3++*+75 "#$ + $" ) )) 8L R 7*L, C,+ +)+ * L ))+)*5 DECLARE CurrencyList CURSOR STATIC FOR 5! # "*7F7%' * ) ) 3+* ) 31,3 "#%

134 &5< + + * 2%4 ) 4#8&, ) 4! L 4!A**J 7+** 3 %(4 "#& 3* ))+:A 7*3++) ) +* K%K) > L * )) +L* ) K7:7 * )*7 "#) +**)+ 7 :

135 %(& #? : K * ) * K*+)+* * /70 : *) 7 7" + + : ) 3+ ) : + L)++ *L 4 +*4+ +*7 + * ) * * ) 7*** ) # )*73-67+** ) 3 * + 7*) * ) : *+ * * /025$ "## 7 ) * " **$3&4*8 7*) )

136 &5< %($ "# ): + ) 7+ $6&0 +*+ KK * ) + + D)))*+ *)) )) 7+)))*7 AL)5 DECLARE CurrencyList CURSOR KEYSET FOR 5! # 7*%#5 "#$

137 %( "**L** +L=*) R)))) ) + : + 7 )) )* *D+ + 1 )) * : *+ ))* *) 5 " ):)+*)) )7:++1+ " A 4#8& * D * & 4 ) ) )&#2%+ +)1))"A )** # 8 7)+**%5 "# $3&4+7 : + $6&0 3$-6 $6&0 &4))*8 +L) ))3*+ *, )* * +

138 &5< (B$%: 6 ) + 7) + * * )*)$<735K,667 K5 %(# DECLARE CurrencyList CURSOR READ_ONLY FOR 8) + *** *5 " + ) *L 7 C) )+ )* * ) + 7 & 37**) Q<+ )7+3 * 57 7L* * *3*L )3))3 )) )*7***))+** )+ ) * ) ) ) 3+* ) +++ *) 9L3++*5 TABLE ( [DateOrderNumber] INT IDENTITY(1, 1),[Name] VARCHAR(50),[OrderDate] DATETIME,[TotalDue] MONEY,[SaleType] VARCHAR(50) ) INT,@TotalDue Money INSERT ( [Name],[OrderDate],[TotalDue] )

139 %' SELECT s[name],soh[orderdate],soh[totaldue] FROM [Sales][SalesOrderHeader] AS soh JOIN [Sales][Store] AS s ON soh[customerid] = s[customerid] WHERE soh[customerid] = 17 ORDER BY soh[orderdate] DECLARE ChangeData CURSOR FOR SELECT [DateOrderNumber],[TotalDue] OPEN ChangeData FETCH NEXT FROM = 0 BEGIN -- Normally there would be operations here using data from cursor < 1000 SET SaleType = 'Poor' WHERE [DateOrderNumber] ELSE > 1000 < SET SaleType = 'OK' WHERE [DateOrderNumber] ELSE > < SET SaleType = 'Good' WHERE [DateOrderNumber] ELSE SET SaleType = 'Great' WHERE [DateOrderNumber] FETCH NEXT FROM END CLOSE ChangeData DEALLOCATE ChangeData SELECT * 8 L*3+L )35 Number Name OrderDate TotalDue SaleType 1 Trusted Catalog Store Good 2 Trusted Catalog Store Good 3 Trusted Catalog Store Great 4 Trusted Catalog Store Great 5 Trusted Catalog Store OK 6 Trusted Catalog Store OK 7 Trusted Catalog Store OK 8 Trusted Catalog Store OK 9 Trusted Catalog Store OK 10 Trusted Catalog Store Good 11 Trusted Catalog Store OK 12 Trusted Catalog Store Poor 6 67 / * 0 ) + +*)7) #80 4#84+

140 &5< + ) + ) ) $)) %%( AL )-67+**)) )5 %'% "$ 8)) &S) )+*))))+) )%* )+**)+*4S) ) ) +* * 7 ) $6&0&4 )) *) +*L )5 DECLARE ChangeData CURSOR STATIC "*+*)+L7 )- 675 "% " * ) %S ) ) + *L + * ) 9*37

141 %' '&*37$4) AL*D)5 DECLARE ChangeData CURSOR KEYSET )* )-67 "& -+)%S+ - + ) /(0 * ) AL5 DECLARE ChangeData CURSOR READ_ONLY "*+ )*&5 ") 9+$6&0))%S)+ ) + ' )+)AL )*L )5 DECLARE ChangeData CURSOR FAST_FORWARD

142 &5< /<735 )*+ $<735 * & +/<735$< /< +* ) ) 9*+ + L AL)* /<7355 %'( DECLARE ChangeData CURSOR FORWARD_ONLY KEYSET 7+)L+ ))+D6F6 3* 9*+*)*;8* 5 SELECT ROW_NUMBER() OVER(ORDER BY soh[orderdate]),s[name],soh[orderdate],soh[totaldue],case WHEN soh[totaldue] < 1000 THEN 'Poor' HEN soh[totaldue] BETWEEN 1000 AND THEN 'OK' WHEN soh[totaldue] BETWEEN AND THEN 'Good' ELSE 'Great' END AS [SaleType] FROM [Sales][SalesOrderHeader] AS soh JOIN [Sales][Store] AS s ON soh[customerid] = s[customerid] WHERE soh[customerid] = 17 ORDER BY soh[orderdate] 3 7! ) )) ) 4#0 ' * * 7+*L+ ) *) ))7+* 75 "* * )3* 4'S ) L + * * 6*3) 7*) ) * ) * * ) ) 9*+*+* )) *) = 1 ) * ) L ))*+***%+*)%+

143 ! %'' * 1*) *? )+ ) ):A:A 1* 9*+* ) * ) + * L 7++*,L)* ** + )+** + ) )) *)) 7 < + + ))) 5 **)1 )**

144 &5< %'4

145 %'& ( C /+,% /',$% % $( /+ 8 ):A4+@? A )+)@? A+*+7 F *@?A*:A) 5 A@? A@?A+* )@:3@? A7 :@? A@: A <6"@? A@?A *3)++ )3 8*)@? A+<>@?A6) )<>@? A3)):A*))7 +*))) :A <6"@? A * * A 8* 7 7 ) <6"@? A 3+ * )+7 )*77*3 A ) ) ** +* C * ) :A + +*)) :A)) ) :A + *@?A 3 ) )*)3@?A)+- 5 F<>@? A))*)5 6P@?A/5 A0 /P)*@?A+* L:MN) $-52&26P*7))@? A+ 3) 60P-$-52&26)+ )@?A 6)3))):A )3)))* 8 * 7 * *

146 ) 7+ 3 ) 3) ) A 3)*+*L- 569L 35 %'$ SELECT c[firstname], c[lastname], c[ address], c[phone], e[employeeid], e[gender], a[addressline1], a[addressline2], a[city], a[stateprovinceid], a[postalcode] FROM [Person][Contact] c INNER JOIN [HumanResources][Employee] e ON c[contactid] = e[contactid] INNER JOIN [HumanResources][EmployeeAddress] ea ON e[employeeid] = ea[employeeid] INNER JOIN [Person][Address] a ON ea[addressid] = a[addressid] FOR XML AUTO 7*%5 "# )) *7)KK3 L ):A6A6+*-54$5$&6 <*L3 AL+*+3 *-C<5 SELECT sname AS StoreName, ccontactid, ccontacttypeid FROM SalesStore s JOIN [Sales][StoreContact] c ON s[customerid] = c[customerid] ORDER BY s[name] FOR XML AUTO

147 %' " A)*5 <s StoreName="A Bicycle Association"> <c ContactID="956" ContactTypeID="11" /> </s> <s StoreName="A Bike Store"> <c ContactID="322" ContactTypeID="11" /> </s> ++)*- 5/ 3P)7+) 3 )@? A) $-52&26+ * 3 * )@? A+) SELECT 1 AS Tag, NULL AS Parent, sname AS [Store!1!StoreName], NULL AS [Contact!2!ContactID], NULL AS [Contact!2!ContactTypeID] FROM SalesStore s JOIN [Sales][StoreContact] c ON s[customerid] = c[customerid] UNION ALL SELECT 2 AS Tag, 1 AS Parent, sname AS StoreName, ccontactid, ccontacttypeid FROM SalesStore s JOIN [Sales][StoreContact] c ON s[customerid] = c[customerid] ORDER BY [Store!1!StoreName], [Contact!2!ContactID] FOR XML EXPLICIT 7)3*7*(5

148 %'# "$ A++ )*5 <Store StoreName="A Bicycle Association"> <Contact ContactID="956" ContactTypeID="11" /> </Store> <Store StoreName="A Bike Store"> <Contact ContactID="322" ContactTypeID="11" /> </Store> )- 5$-52&26L+ *+ ) ) )) L ) 6* 7+ *+ ) 3 +*@? A+) +C" <"7+ ) )33-7)- 56*)6$ ) )* * :A45 SELECT s[name] AS StoreName, ( SELECT ccontactid, ccontacttypeid FROM [Sales][StoreContact] c WHERE c[customerid] = s[customerid] FOR XML AUTO, TYPE, ELEMENTS ) FROM [Sales][Store] s ORDER BY s[name] FOR XML AUTO, TYPE $5$ $364)* *+))@? A5

149 %4 <s StoreName="A Bicycle Association"> <c> <ContactID>956</ContactID> <ContactTypeID>11</ContactTypeID> </c> </s> 7))+*'5 "% @ "& $%A**K+*)*)4& 5 & 2<& 62<1*) 74 7C,@* 1

150 * 3 + )@?A)/0+)) ))@? A @?A 7 C + 3*L * **5 %4% SELECT s[name] AS "@StoreName", c[contactid] AS "StoreContact/@ContactId", c[contacttypeid] AS "StoreContact/@ContactTypeID" FROM [Sales][Store] s JOIN [Sales][StoreContact] c ON s[customerid] = c[customerid] ORDER BY s[name] FOR XML PATH 7*+* /%0@? A)*5 <row StoreName="A Bicycle Association"> <StoreContact ContactId="956" ContactTypeID="11" /> </row> <row StoreName="A Bike Store"> <StoreContact ContactId="322" ContactTypeID="11" /> </row> $%/+ <))@? A+ 7*)*:A * 7 ) )@? A )+@? A)3)* + )*@:@8 + + >+)@?A-9@?A-C< * 5 Table 'StoreContact' Scan count 1, logical reads 7, Table 'Store' Scan count 1, logical reads 103, A 6@A ) * * 5 Table 'Worktable' Scan count 0, logical reads 0, Table 'StoreContact' Scan count 2, logical reads 8, Table 'Store' Scan count 2, logical reads A-C<*F6*)C,@+ )5 Table 'StoreContact' Scan count 701, logical reads 1410, Table 'Store' Scan count 1, logical reads )* **:A L

151 %4 A) *= <ROOT> <Currency CurrencyCode="UTE" CurrencyName="Universal Transactional Exchange"> <CurrencyRate FromCurrencyCode="USD" ToCurrencyCode="UTE" CurrencyRateDate="1/1/2007" AverageRate="553" EndOfDateRate= "558" /> <CurrencyRate FromCurrencyCode="USD" ToCurrencyCode="UTE" CurrencyRateDate="6/1/2007" AverageRate="928" EndOfDateRate= "1057" /> </Currency> </ROOT> +*L*+C67+* *C687)C6C,8L + + +)@?A9L5 BEGIN TRAN AS INTEGER AS NVARCHAR(MAX) = '<ROOT> <Currency CurrencyCode="UTE" CurrencyName="Universal Transactional Exchange"> <CurrencyRate FromCurrencyCode="USD" ToCurrencyCode="UTE" CurrencyRateDate="1/1/2007" AverageRate="553" EndOfDayRate= "558" /> <CurrencyRate FromCurrencyCode="USD" ToCurrencyCode="UTE" CurrencyRateDate="6/1/2007" AverageRate="928" EndOfDayRate= "1057" /> </Currency> </ROOT>' EXEC INSERT INTO [Sales][Currency] ( [CurrencyCode], [Name], [ModifiedDate] ) SELECT CurrencyCode, CurrencyName, GETDATE() FROM OPENXML (@idoc, 'ROOT/Currency',1) WITH ( CurrencyCode NCHAR(3), CurrencyName NVARCHAR(50) ) INSERT INTO [Sales][CurrencyRate] ( [CurrencyRateDate], [FromCurrencyCode], [ToCurrencyCode], [AverageRate], [EndOfDayRate], [ModifiedDate] ) SELECT CurrencyRateDate, FromCurrencyCode, ToCurrencyCode, AverageRate, EndOfDayRate, GETDATE() FROM OPENXML(@iDoc, 'ROOT/Currency/CurrencyRate',2) WITH ( CurrencyRateDate DATETIME '@CurrencyRateDate', FromCurrencyCode NCHAR(3) '@FromCurrencyCode', ToCurrencyCode NCHAR(3) '@ToCurrencyCode', AverageRate MONEY '@AverageRate', EndOfDayRate MONEY '@EndOfDayRate' ) EXEC ROLLBACK TRAN 3+ * * 7 + ) 234$6 ) 234$6& +*&5

152 %4( ") - 3 ) A - <6"@?A *4 ),AA* :A )* )3> )3)+3 67)7@? A A 7%#7 7%#7 ' ) :A+$ "* **)@? A<A) 4 9++*<6"@? A) + )@?A " + L ))* 3* )) 7) $6& 5 "+ 3)+ )73) ) ) * & & F + A > ) **) +*? E + )

153 /! %4' & & 6& &)? E+ <= A )*3+) * - + <6"@? A ) ) A *+ *)7+ ) 1 4$5$&6 *<6"@?A )+) *1 *3 < * ) A++@? A * ) * - * :A 4+ )@: ) 3@? A 6))+ :A 8 *3)@?A+) + )*)7))*5 8( '#( (+5)7* 8%(+537!* +1$-2464*:A 8(+5)+@? A )3@? A+)A8 <>/)++ *+ 0*3+))7 L 1*73* )77 L) * 3)* ' 8% 3)3***@? A )* 7+*L 3 ) ) *)*5 SELECT c[lastname], c[firstname], e[hiredate], e[title] FROM [Person][Contact] c INNER JOIN [HumanResources][Employee] e ON c[contactid] = e[contactid] INNER JOIN [HumanResources][JobCandidate] jc ON e[employeeid] = jc[employeeid] AND jc[resume]exist(' declare namespace res=" /res:resume/res:employment/res:empjobtitle[contains(,"sales Manager")]') = 1

154 %44 3++)**)+ 7%5 "# + +* 7 -&# 2%4 1& )* # >)-351 ))1& *)$# +) *** ) * + 6# =# B K@? A>*@)K )@: )>)<6"@?A39*+ B+>7 +)3 ) B*)**)5 "#%# * # 3 * ) 3 *) 3 5 L7+)& *)

155 %4& ' 2! 7+*L3,) )= A + + A8 <> 7/+ A+ 8 +< +>07)@:+ :A5 P@? A7 ) ' * Q6 /P/7 *1 /0$$:A P+1<$:A/0 P) +)4$5$&6 :A7)@?A)) #7+*:A4 7+*) )**)) 3)) +*@?A )@?A+*L 8AL7375 SELECT sdemographicsquery(' declare namespace ss=" for $s in /ss:storesurvey where ss:storesurvey/ss:squarefeet > return $s ') AS Demographics FROM [Sales][Store] s WHERE s[salespersonid] = 279 "# 3)*3 -:A34 ** 4#2E,OP+ -33*L3) * *++ ***3 -*+)%)&#2% 4 4# +) 4#2) ))35+)1) ))1+*))5&#2%4 + L@?A7

156 %4$ "#$! F%(7-5747<! + *) 7 &2))!*+&#2%4 &2+ 4)) A)E +)1)@? A ) <-)@? A * *)4 <))@:) )*:A )@? A 7* * *) + ) ) ) 7L )*L *@: )@?A F ):A@: **7L )* )) + * )) )? ) /5QQ)Q Q Q('4%70 ) <>@?A+ )

157 %4 ) <6"@?A * *L *<6"@?A *:A* )*) *@? A*:A- *+* L )

158 %4#

159 %& ( D 3% $, + * * 7 + * 7)73+ ):A 1++*+7+ )+*****7 *7* )+**)) )7+)*5 A7* P**+*3 7* =P* 7= )C 1 )++:A CP73* R ** CP7+)* ) = ( *L*7 ) + ) + L =)1+) 7++*L** * 9*+)=+*)*7 + L ) ) ** =+*+*+ AL * L 7 / L 0)*+ * )) * + ) )) 3+ 7 )) 3 +)) DROP PROCEDURE [Sales][uspGetDiscountRates] ; GO CREATE PROCEDURE [Sales][uspGetDiscountRates] INT,@SpecialOfferId INT ) AS BEGIN TRY -- determine if sale using special offer exists IF EXISTS ( SELECT * FROM [Sales][Individual] i INNER JOIN [Sales][Customer] c ON icustomerid = ccustomerid INNER JOIN [Sales][SalesOrderHeader] soh ON sohcustomerid = ccustomerid INNER JOIN [Sales][SalesOrderDetail] sod

160 5- ON soh[salesorderid] = sod[salesorderid] INNER JOIN [Sales][SpecialOffer] spo ON sod[specialofferid] = spo[specialofferid] WHERE i[contactid] AND spo[specialofferid] ) BEGIN SELECT c[lastname] + ', ' + c[firstname],c[ address],i[demographics],spo[description],spo[discountpct],sod[linetotal],p[name],p[listprice],sod[unitpricediscount] FROM [Person][Contact] c INNER JOIN [Sales][Individual] i ON c[contactid] = i[contactid] INNER JOIN [Sales][Customer] cu ON i[customerid] = cu[customerid] INNER JOIN [Sales][SalesOrderHeader] soh ON cu[customerid] = soh[customerid] INNER JOIN [Sales][SalesOrderDetail] sod ON soh[salesorderid] = sod[salesorderid] INNER JOIN [Sales][SpecialOffer] spo ON sod[specialofferid] = spo[specialofferid] INNER JOIN [Production][Product] p ON sod[productid] = p[productid] WHERE ccontactid AND sod[specialofferid] END -- use different query to return other data set ELSE BEGIN SELECT c[lastname] + ', ' + c[firstname],c[ address],i[demographics],sohsalesordernumber,sod[linetotal],p[name],p[listprice],sod[unitprice],st[name] AS StoreName,ec[LastName] + ', ' + ec[firstname] AS SalesPersonName FROM [Person][Contact] c INNER JOIN [Sales][Individual] i ON c[contactid] = i[contactid] INNER JOIN [Sales][SalesOrderHeader] soh ON i[customerid] = soh[customerid] INNER JOIN [Sales][SalesOrderDetail] sod ON soh[salesorderid] = sod[salesorderid] INNER JOIN [Production][Product] p ON sod[productid] = p[productid] LEFT JOIN [Sales][SalesPerson] sp ON sohsalespersonid = spsalespersonid LEFT JOIN [Sales][Store] st ON spsalespersonid = stsalespersonid LEFT JOIN [HumanResources][Employee] e ON spsalespersonid = e[employeeid] LEFT JOIN Person[Contacct] ec ON e[contactid] = ec[contactid] WHERE i[contactid] END --second result SET = 16 BEGIN SELECT p[name],p[productline] FROM [Sales][SpecialOfferProduct] sop INNER JOIN [Production][Product] p ON sop[productid] = p[productid] WHERE sop[specialofferid] = 16; END %&%

161 ; %& END TRY BEGIN CATCH SELECT ERROR_NUMBER() AS ErrorNumber,ERROR_MESSAGE() AS ErrorMessage ; RETURN ERROR_NUMBER() ; END CATCH RETURN 0 ; ) * ) 3 ) 3 +!) + 3) ))3 C)+,!- 8L7*)*5 EXEC = 12298, -- = int )5 "#& )+ * *+) 3 ) )) 3 7 *5

162 5- %&( " < + * * 9*+ ) *+)3)) ) 3 ) 7 ) )) + ) 3*))+ ) 3+**4 #2<V %& 8 7+*L * L1)) = )* ** F*** *)3**+*L7+ L+*(5 "$ **+ * ) 7D +** FLK*K+*'5

163 %&' "% -* +L *+7 )**7)+** L -)+*1)) 3 /&S0+ *+ &# 2% 4 4#82'# " ) 7 7 & 2< +* =)3-7))3 8 7! *+ + )) 7 ) + *@?A*L7 ) L1*7+ * +)7))) R1),L E +)**+ **+) :A ) ) * L ) )+ *+ 5 K %<!##K+* ):A **73!)KK+* K&6###K+*)++ *:A )*3*)K4K + :A * ) 3 / 0!)+* )*7+)K%K )*