Presented By: John Sterrett. blog:

Transcription

1 Presented By: John Sterrett blog:

2 I am not an expert but I stayed at a Holiday Inn Express. I reside in Wheeling, WV (Pittsburgh, PA) Recently started Wheeling SQL Server UG Co-Host SQL Saturday #36 in Wheeling, WV Work for Orrick Herrington & Sutcliffe LLP Responsible 100+ Instances of SQL Server Responsible for PeopleSoft

3 Give an introduction to new features. Give real-world cases for using new features. This is an introduction, NOT a deep dive.

4 Management Studio (SSMS) Enhancements T-SQL Delighters Filtered Indexes New Date and Time Data Types Table-Valued Parameters MERGE statement Policy Based Management and Central Management Server Change Data Capture

5 IntelliSense Debugging Error List Object Explorer Details Viewer Template Explorer (SQL 2005) Activity Monitor

6 Declare and Initialize Variables Compound assignment Operators Table Value Constructor Support through the VALUES Clause

7 Demo covering The following topics IntelliSense Debugging Error Lists Object Explorer Details Template Explorer Activity Monitor

8 Have you ever wanted to create an index that filters between a static search criteria? CREATE INDEX idxname ON Schema.Table (Column) WHERE

9 Improved query performance and plan quality if used correctly! Reduced index maintenance costs Reduced index storage costs

10 Filtered Indexes Demo.

11 SQL Server 2008 extends date/time support Larger Value Space Current DATETIME Years Current DATETIME Second Accuracy New Date Types Years New Date/Time Types - Precisions to 100 nanoseconds Variable Precision Saves Space Separate Date and Time Saves Space ANSI Compatible

12 DATE Data Type Date Only to Gregorian Calendar TIME Data Type Time Only Variable Precision - 0 to 7 decimal places for seconds To 100 nanoseconds

13 DATETIME2 Data Type to Gregorian Calendar Variable Precision - to 100 nanoseconds DATETIMEOFFSET to Gregorian Calendar Variable Precision - to 100 nanoseconds Time Zone Offset (From UTCTime) Preserved Not Time Zone Aware - No Daylight Saving Time Support

14 SWITCHOFFSET (DATETIMEOFFSET, time_zone) Allows you to change time zones (+14 to -14) Uses Gregorian Calendar SqlDbType.DateTimeOffset

15 T-SQL Date and Time DATETIMEOFFSET with.net

16 Have you wished that you could send a table into a stored procedure? Do you wish you could send all parent-child relationship data in one round-trip?

17 SQL Server has table variables TABLE (id int); SQL Server 2008 adds strongly typed table variables CREATE TYPE mytab AS TABLE (id int); mytab; Table-Value Parameters must use strongly typed table variables

18 ADO.NET 3.5 Supports Table Value Parameters You can populate TVP from the following.net objects DataTable DbDataReader System.Collections.Generic.IList <SQLDataRecord> Recommended for 1000 or less records

19 SqlParameter tvpparam = new SqlParameter(); tvpparam.parametername = "@TVP"; tvpparam.value = dtlist; //DataTable in this example tvpparam.sqldbtype = SqlDbType.Structured; // This data type allows us to pass a table into DB Objects tvpparam.typename = "TVPComponentType"; // Name of strong typed (table type)

20 Table-Value Parameters with T-SQL Table-Value Parameters with ASP.NET (C#)

21 Once upon a time I use to build scripts like the following: TRUNCATE TABLE db1.dbo.fool INSERT INTO db1.dbo.fool SELECT * FROM db2.dbo.fool

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23 Multiple set operations in a single SQL statement Uses multiple sets as input MERGE target USING source ON... Operations can be INSERT, UPDATE, DELETE Operations based on WHEN MATCHED WHEN [TARGET] NOT MATCHED WHEN SOURCE NOT MATCHED ANSI SQL 2006 compliant - with extensions

24 Multiple WHEN clauses possible For MATCHED and SOURCE NOT MATCHED Only one WHEN clause for TARGET NOT MATCHED MERGE can be used with any table source A MERGE statement causes triggers to be fired once Rows affected includes total rows affected by all clauses

25 MERGE statement is transactional No explicit transaction required One Pass Through Tables At most a full outer join Matching rows = when matched Left-outer join rows = when target not matched Right-outer join rows = when source not matched

26 Demo Merge with T-SQL!

27 Have you ever wanted to run a script against all production databases? Have you ever wanted to enforce naming conventions in SQL Programming?

28 Central Management System Needs only 1 instance of SQL 2008 Reactive not proactive great tool for running a script against multiple servers Policy Based Management proactive tool prevents stuff from happening great tool to enforce compliance on SQL servers

29 Facets Conditions Policies

30 Demo monitoring and enforcing naming standards with Policy Based Management

31 Have you ever wanted to get row deltas on a table without using replication or triggers on the source table?

32 Must have Enterprise Edition Uses transaction log to pull deltas Enable on database (req sysadmin) sys.sp_cdc_enable_db_change_data_capture creates cdc schema creates cdc user creates system tables with cdc schema Enable on table(s) (req db_owner) sys.sp_cdc_enable_table creates sql agent jobs creates table cdc.schema_tablename_ct

33 Changes stored in cdc.schema_tablename_ct _$operation column specifies change type = = = = DELETE INSERT BEFORE UPDATE AFTER UPDATE

34 cdc.fn_cdc_get_all_changes<capture_instanc e> gets all changes during specific range cdc.fn_cdc_get_net_changes<capture_instan ce> returns final (net change) for each row in the specific range

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36 Enable and use Change Data Capture

37 Using the Transact-SQL Debugger SQL 2008 JumpStart MSDN SQL 2008 Virtual Labs Developer Fundamentals Part 1: Uncovering T-SQL on SQL Server 2008

38 Presented By: John Sterrett Blog: LinkedIn: