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Transcription

1 IBM - iseries 5 4

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3 IBM - iseries 5 4

4 !, ( ) IBM i5/os( 5722-SS1) 5, 4, 0. (RISC) CISC. Copyright International Business Machines Corporation 2003, All rights resered.

5 V5R PDF (pool) XA SQL (IPL) : : : : 94 : Copyright IBM Corp. 2003, 2006 iii

6 i IBM - iseries:

7 ... IBM iseries DB2 Uniersal Database *NONE( )... : 122. V5R4 IBM i5/os V5R4. : XA ( XA ) : XA (RDB) XA (DDM) XA.... Copyright IBM Corp. 2003,

8 PDF PDF. PDF ( 1413KB). PDF PDF. 1. PDF ( ). 2. PDF. 3. PDF. 4.. Adobe Reader PDF Adobe Reader. Adobe ( 2 IBM - iseries:

9 (atomic). : iseries Naigator (LUW) API(application programming interfaces). COMIT ROLBK API CL COMMIT ROLLBACK IBM Integraged Language Enironment (ILE) RPG/400 ILE COBOL/400 COMMIT ROLLBACK ILE C/400 _Rcommit _Rrollbck PL/I PLICOMMIT PLIROLLBACK SQL COMMIT ROLLBACK SQL (CLI) SQLTransact() ( ) XA API xa_commit() db2xa_commit() API xa_rollback() db2xa_rollback() API SQL 3

10 COBOL/400 PDF RPG/400 PDF WebSphere Deelopment Studio: ILE C/C++ Programmer s Guide PDF CL API(Application Programming Interfaces) SEQONLY(*YES) I/O. I/O I/O. API.. CCM STRCMTCTL( ). iseries(tm) DB2 Uniersal Database(UDB). 4 IBM - iseries:

11 I/O.. SEQONLY(*YES) I/O. I/O I/O. API... ( ).. CRB... CRB

12 ..... STRCMTCTL( ). iseries(tm) DB2 Uniersal Database(UDB) STRCMTCTL (pool) (pool) (pool) i5/os SQL.. 22 (pool) (pool). 6 IBM - iseries:

13 ..,.... STRCMTCTL( ) *NONE SQL.. STRCMTCTL SQL..... iseries Naigator, WRKCMTDFN( ), DSPJOB() WRKJOB( ).. *DFTACTGRP... *NONE. 7

14 STRCMTCTL CMTSCOPE(*JOB)... iseries Naigator, WRKCMTDFN( ), DSPJOB() WRKJOB( ). *JOB... *NONE... SQL..... ( ) QTNADDCR( ) API API QTNCHGCO( ) API QTNRBRQD() API ID QJOSJRNE( ) API ID. 8 IBM - iseries:

15 ..... iseries Naigator, WRKCMTDFN( ), DSPJOB() WRKJOB( ).... *NONE. XA API. API SQL. API SQL. API.. iseries Naigator, WRKCMTDFN( ), DSPJOB() WRKJOB( ). *TNSOBJ.... ( *NONE). XA API. 9

16 . *JOB *DFTACTGRP ( : PAYROLL) ( : ) QDIR001 ( ) Q. *TNSOBJ IBM (ILE). ILE. (OPM) *DFTACTGRP. OPM ILE... OPM ILE..... XA API CLI. ILE PDF : IBM - iseries:

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18 F1 F2 F3 F4 F5 F6 F7 PGMX (3= =COMMIT ROLLBACK ). PGMZ PGMX. PGMZ F7 CMTSCOPE (*ACTGRP). after updating file F7.. PGMX COMMIT (*YES) F3 F4. PGMZ COMMIT(*YES) F7. PGMZ *JOB (PGMX ) F IBM - iseries:

19 FILE- 1 DDL- SQL XQL SQL : SQL SQL. SQL DDM- (DDM). DDM. LU DRDA- SQL CONNECT API- API TCP-TCP/IP QTNADDCR( ) API TCP/IP RDB SQL CONNECT TCP/IP DDM QTNRMVCR( ) API SQL DDM DDM. SQL. QJOSJRNE( ) API.,. 13

20 : QAQQINI DDM DDM PTCCNV(*YES), DDM SNA, LU 6.2 DDM. DRDA LU 6.2 DRDA.. SNA (RDB). APPC Programming. DDM 64. QTNADDCR( ) API QTNRMVCR( ) QJOSJRNE( )... (DDL API ). (pool) (pool) IBM - iseries:

21 (pool) (pool) DRDA (pool).. API DDL DDM DRDA FILE LU62 TCP 21 (pool) (pool) (pool) i5/os SQL..... FILE, DDL API DDM, LU62 DRDA,, DRDA 1.. DRDA 2. TCP 15

22 API API API (pool) (pool) (pool) i5/os SQL.. ( FILE DDM) SQL ( ) IBM - iseries:

23 API. API QJOSJRNE( ) API... API API..... STRCMTCTL( ).. API. CBC STRCMTCTL STRCMTCTL API CSC 1 API ID QJOSJRNE API 17

24 D F DDL. ID DDL. R U API ID QJOSJRNE API CCM CRB CLW STRCMTCTL. LW. OMTJRNE(*NONE) STRCMTCTL. CEC ENDCMTCTL( ). CSB CSQ CSU SQL SAVEPOINT 2. SQL SAVEPOINT 2. SQL SAVEPOINT IBM - iseries:

25 : 1 CRTJRN() CHGJRN() FIXLENDTA( ) *LUW( ). FIXLENDTA (*LUW) CSC ID(LUWID). XA FIXLENDTA(*LUW) CSC XID. LUWID XID. 2 QTN_JRNSAVPT_MYLIB_MYJRN *YES. MYJRN MYLIB. MYLIB MYJRN *ALL.. MYLIB/MYJRN. ADDENVVAR ENVVAR(QTN_JRNSAVPT_MYLIB_MYJRN) VALUE(*YES). ADDENVVAR ENVVAR( QTN_JRNSAVPT_*ALL_*ALL ) VALUE(*YES) LEVEL(*SYS). 4.. ENDCMTCTL( ) ID. ID. ID. ID CSC. ID. ID. CRTJRN() CHGJRN() FIXLENDTA( ) *LUW( ). FIXLENDTA (*LUW) CSC ID(LUWID). XA FIXLENDTA(*LUW) 19

26 C SC XID. LUWID XID. QJOSJRNE( ) API API. ID. ID APYJRNCHG( ) RMVJRNCHG( ).. APYJRNCHG RMVJRNCHG. QJOSJRNE API U. APYJRNCHG RMVJRNCHG , WAITRCD. CRTPF( ) CRTLF( ) CRTSRCPF( ) CHGPF( ) CHGLF( ) CHGSRCPF( ) OVRDBF( ) IBM - iseries:

27 xa_open API JDBC JTA. API ,.... :.. LCKLVL(*ALL) IBM (PDF ), Information Center. PDF. (pool) (pool) (pool) i5/os SQL.. 21

28 (pool) (pool) SQL. 6 STRCMTCTL( ). iseries(tm) DB2 Uniersal Database(UDB) API 2. (pool) (pool). QRECOVERY QRECOVERY. QRECOVERY. QRECOVERY QRCYxxxxx xxxxx. 39 QRECOVERY QRCY QRCYxxxxx. QRECOVERY,. ASP SETASPGRP(ASP ). SETASPGRP, CPDB8EC, 2,.. CPFB8E9.. (ASP *NONE) IBM - iseries:

29 .. CPF (pool) (pool). (pool) (pool) CPF9873. (pool) (pool) (pool) (pool). (pool) (pool). IPL IPL. (pool) (pool) IPL. IPL LU6.2 SNA ( (DUW)). SNA.. SQL CONNECT (pool) (RDB). 23

30 .. 6 STRCMTCTL( ). iseries(tm) DB2 Uniersal Database(UDB). XA XA. XA 2. (pool) SQL XA (pool) XA iseries DB2 Uniersal Database(UDB) X/Open. (pool).. LCKLVL(*ALL) ( OVRDBF( ) ) SEQONLY(*YES) SEQONLY(*YES) SEQONLY(*NO).. APYJRNCHG( ) RMVJRNCHG( )... RMVJRNCHG. 24 IBM - iseries:

31 SQL. SQL SBMRMTCMD( ).. 1 SQL COMMIT ROLLBACK CL. SQL COMMIT ROLLBACK. 1. SQL *NONE SQL.... (PF). QTNADDCR( ) API N API. :.. API API.. 25

32 COMMIT ROLLBACK WRKACTJOB. COMMIT ROLLBACK STRCMTCTL( ) LCKLVL. OVRDBF( ) APYJRNCHG( ) RMVJRNCHG( ) SQL SBMRMTCMD( ) COMMIT ROLLBACK QTNADDCR( ) API IBM - iseries:

33 QAQQINI( ). CHGQRYA( ) QRYOPTLIB. COMMITMENT_CONTROL_LOCK_LEVEL ,. 74. CHGQRYA( ) 2 2. i5/os SNA LU SNA Transaction Programmer s Reference for LU Type 6.2, GC i5/os SNA LU 6.2 Presumed Nothing SNA LU 6.2 Presumed Abort. 2 (DUW) (DRDA) TCP/IP. TCP/IP DUW ( ) V5R1M0. DRDA Open Group Open Group Technical Standard, DRDA V2 Vol. 1: Distributed Relational Database Architecture

34 (heuristic). 2.. STRCMTCTL( ) CLW. OMTJRNE(*LUWID)..... Open Group STRCMTCTL( )... FILE DDM DDL DRDA LU62 API API 28 IBM - iseries:

35 ... 2 : A A. TCP/IP DRDA. (B, C D). TCP/IP DRDA. 2 : APPC 2. B.. TCP/IP DRDA. 29

36 B C D. A. LU TCP/IP DRDA :.. 30 IBM - iseries:

37 2... ( ) : (RST) (PIP) (PRP) (CIP) (heuristic). 31

38 (CMT). 2 : (LAP) PIP CIP.. (VRO) (RBR) QTNRBRQD API.. :. (heuristic) (HRM) IBM - iseries:

39 2 : :. 51 STRCMTCTL( ). 66 (IPL) (IPL) QTNCHGCO( ) API.. : TCP/IP DRDA. QTNCHGCO( ) API 2 : :..... QTNCHGCO( ) API Y... 33

40 ( )..... /. A I A A I. 34 IBM - iseries:

41 2. (I). 3. (TM-I).. 4. (TM-A). A TM-A. ICF RCVTKCMT( ) ICF. 5. A ( ).. 6. A (QTNCHGCO) Y, (TM-A) (TM-I).. 7. TM-A A. 8. (TM-I) (TM-A) TM-I ID. TM-I ID TM-I. 9. TM-A A. A TM-I ID QTNCHGCO( ) API 2 : :. : TCP/IP DRDA. TCP/IP DRDA. 35

42 ... QTNCHGCO( ) API. N( ) (QDBSRVnn). : IPL.. Y( ) N( ). L( ) U( ).. QTNCHGCO( ) API. :. (WFO) WFO. WFO Y( ). WFO N( ). ( ) WFO. WFO N 2 3. STATUS CPF83E6. CPF83E6 STATUS.... CPI83D0 QSYSOPR. : (I) Y( ) TM-I TM-A A I. 36 IBM - iseries:

43 : WFO N( ). TM-A 3 TM-I 4. TM-A I.. I. (A).. TM-A. WFO. WFO N( ) N U( ). WFO. 37

44 N. N. DRDA DDM. APPC QTNCHGCO API Y. 38 IBM - iseries:

45 QTNCHGCO( ) API 2 : :.. : TCP/IP DRDA... QTNCHGCO( ) API Y( )... /. A I A

46 A I. 2. (I). 3. (TM-I).. 4. (TM-A). A TM-A. ICF RCVTKCMT( ) ICF. 5. A ( ).. 40 IBM - iseries:

47 6. A (QTNCHGCO) Y (TM-A) (TM-I). :. 7. (TM-I) TM-I.. 8. (TM-A). 9. (I). 10. TM-I TM-A TM-A. TM-A. 11. (TM-I) (A) ID.. (.) ID. 12. (A) : :. : TCP/IP DRDA.. ( )

48 . LUW... QTNCHGCO( ) API N. QTNCHGCO( ) API :. TCP/IP DRDA. i5/os TCP/IP ( ). ( ) TCP/IP. QTNCHGCO( ) API Y. (heuristic)..... (heuristic).. i5/os... i5/os. ( ). ( ). 42 IBM - iseries:

49 . i5/os. (heuristic) (heuristic) A I. 2. (I). 3. (TM-I).. 4. (TM-A). A TM-A. ICF RCVTKCMT( ) ICF. 43

50 5. A ( ).. 6. (TM-A) (TM-I). i5/os. 7. (TM-I) TM-I. N( ) Y( ) (I A).. (heuristic) A (heuristic) I. QSYSOPR. A (heuristic). 9. (TM-A) (TM-I) TM-A TM-I. TM-A 7 TM-I. QTNCHGCO( ) API XA iseries DB2 Uniersal Database(UDB) X/Open. Open Group.. X/Open. X/Open. X/Open Guide, February 1996, Distributed Transaction Processing: Reference Model, Version 3 (ISBN: , G504), The Open Group. X/Open CAE Specification, December 1991, Distributed Transaction Processing: The XA Specification (ISBN: , C193 or XO/CAE/91/300), The Open Group. X/Open CAE Specification, April 1995, Distributed Transaction Processing: The TX (Transaction Demarcation) Specification (ISBN: , C504), The Open Group. iseries DB2 UDB XA XA Specification. Open Group. DTP. 44 IBM - iseries:

51 (AP).. (TM) (atomic). TM RM. (RM). AP RM. TM RM. (CRM) TM. CRM iseries DB2 UDB. CRM. iseries DB2 UDB. XA DTP TM RM DTP. iseries DB2 UDB UNIX API. API iseries DB2 UDB RM XA API. iseries Naigator XA iseries Naigator XA. iseries DB2 UDB. Open Group XA.. XA. iseries DB2 UDB XA.. :.. :.. 45

52 XA XA API XA. XA API XA API. XA API. XA SQL XA SQL XA API XA. iseries DB2 UDB RM... iseries DB2 UDB XA SQL. XA iseries DB2 UDB SQL. suchxa_open() db2xa_open()api SQL SQL. XA API XA SQL. XA API XA. SQL i5/os DDM XA. XA API iseries DB2 UDB XA.. SQL XA SQL( ) SQL xa_open() db2xa_open() (API). Xainfo xa_open() db2xa_open() API. xa_open() db2xa_open() API.. :. XA SQL. 46 IBM - iseries:

53 XA SQL. XA,. :. XA SQL. RM TM ax_reg(),.... TM. TM. TM. iseries TM AP. :.. db2xa_end() API. CLI CLI XA db2xa_open() API. Xainfo db2xa_open() API XA. :. CLI XA... CLI CLI. 47

54 :. XA (DUW) DRDA. SNA LU6.2 DRDA TCP/IP DRDA V5R1 iseries. SNA LU6.2 DRDA TCP/IP DRDA XA iseries. XA db2xa_open() API. RMID db2xa_open() API... (heuristic). XA iseries Naigator WRKJOB( ), DSPJOB( ) WRKCMTDFN( ). TM,, ID. WRKCMTDFN JOB(*ALL) STATUS(*XOPEN) iseries Naigator XA. :. db2xa_end() API. db2xa_end() API SQL. db2xa_commit() db2xa_rollback() API SQL. SQL SQL SQL7908. SQL SQL. db2xa_commit() db2xa_rollback() API SQL. XA.. 48 IBM - iseries:

55 XA. :.. SQL. ENDJOB( ) CL.. TM xa_open() db2xa_open() API xainfo. xa_close() db2xa_close() API... XA ID(XID) ID(GTRID) (BQUAL).. XA API. 24 XA XA. XA 2. Open Group 50 SQL

56 SQL.,.,..,. SQL QWTCHGJB() API iseries DB2 Uniersal Database(UDB). SQL SQL. SQL. SQL SQL7908 SQL.. SQL. SQL SQL. SQL (CLI). SQL. SQL. CLI. CLI. SQL. SQL DDM API SQL. 44 XA iseries DB2 Uniersal Database(UDB) X/Open. DB2 UDB CLI SQL DB2 CLI DB2 UDB CLI QWTCHGJB() API 50 IBM - iseries:

57 STRCMTCTL( ). : SQL. SQL SQL *NONE. STRCMTCTL. STRCMTCTL LCKLVL.. NTFY.,. CMTSCOPE OMTJRNE( )..... TEXT.. OMTJRNE 51

58 ... OMTJRNE.. (heuristic). (heuristic) 2. (heuristic).. () STRCMTCTL( ), IBM - iseries:

59 .. CPF8358. ( C CM).... CL COMMIT ILE RPG* COMIT PLI. PLICOMMIT ILE C* _Rcommit ILE COBOL* COMMIT SQL COMMIT : CPI8399. CPI

60 :... STRCMTCTL( ) LCKLVL.. SQL SQL SQL... *CHG... *CS.. *CS. *UPDATE. *ALL.. 54 IBM - iseries:

61 *ALL.. *ALL *UPDATE.. LCKLVL *CHG *CS, *READ *ALL *READ *UPDATE 1 *CHG *UPDATE 2 *UPDATE *CS *UPDATE *UPDATE 2 *ALL *UPDATE 2 1 *UPDATE *CHG *UPDATE *CS, *UPDATE *ALL,, *UPDATE *UPDATE *CHG *UPDATE *CS *UPDATE *ALL *UPDATE 55

62 LCKLVL *UPDATE *CHG *UPDATE : *CS *ALL *UPDATE *UPDATE 1, *READ *CS *ALL.. *UPDATE,,. *CS *ALL. LCKLVL.. : *CS *ALL. *CS *ALL.,.. 56 IBM - iseries:

63 24. STRCMTCTL( ). ENDCMTCTL( ). ENDCMTCTL. ENDCMTCTL... STRCMTCTL. ENDCMTCTL... QTNRMVCR API API. API...,, EMDCMTCTL CPA8350.,. CPF8356 CPF835C 57

64 CPF83E4. API API. API ENDCMTCTL( ) : *JOB *DFTACTGRP. *JOB *DFTACTGRP. ENDCMTCTL. 58 IBM - iseries:

65 ... I/O. API API. 5. API API API API API. C CM() C RB().. action-if-end API 59

66 API Action if Endjob 1 RST N/A N/A X/Open. X/Open. (S1). (S1). PIP N/A N/A X/Open. X/Open (S2) (S2). PRP N/A WAIT X/Open PRP N/A C X/Open 2. R X/Open. X/Open. XA TM. XA (S3). SQL. XA (S5). CIP N/A N/A. LAP NO WAIT IBM - iseries:

67 API Action if Endjob 1 LAP YES WAIT 1. API LAP N/A C. R. CMT N/A N/A.. VRO N/A N/A... RBR N/A N/A.. : 1 QTNCHGCO( ) API Action if Endjob. 2 X/Open. XA TM. XA (S3). SQL. XA (S5).,.. ( (RST).) API : API.. API RST.. RST. RST API. API. RST API. API. 61

68 . QTNCHGCO( ) API. :.. RRTJOB( ), TFRJOB() TFRBCHJOB( ). CPF API API. 5. API API IPL. 62 IBM - iseries:

69 :,. (ENDJOBABN).. IPL ENDJOBABN. ENDJOBABN IPL.... IPL. SQL IPL.. IPL.,.,. API API. API API. : ( LAP PRP) ( ). COMMIT. ROLLBACK. WAIT. (heuristic).. ( IPL )

70 59... DDL.... API (DRDA *) (DDM) LU : *DFTACTGRO *JOB., IBM - iseries:

71 ILE.... ENDCMTCTL.. CPA8350. CPA CPA8350 ENDCMTCTL

72 (IPL) (IPL). (pool) (pool). IPL.. QDBSRVnn nn. (pool) (pool) QDBSxxxVnn xxx (pool) nn QDBS035V02 (pool) PRP LAP. :. XA API XA ( ).. IPL... IPL IBM - iseries:

73 CPI8351 &1. CPC8355 &19/&18/&17 &8 IPL. CPD835F &19/&18/&17 &8 IPL.. (QHST). QSYSOPR. iseries Naigator WRKCMTDFN( ). iseries Naigator iseries Naigator ( ).. : SQL.. 1. iseries Naigator : X/Open. DB2 Uniersal Database(UDB)

74 ID iseries Naigator iseries Naigator IBM - iseries:

75 iseries Naigator iseries Naigator

76 (pool)... STRCMTCTL( ) ENDCMTCTL( ) STRCMTCTL ENDCMTCTL. STRCMTCTL ENDCMTCTL SEQONLY(*YES) (OVRDBF ) SEQONLY(*YES) ( SEQONLY(*YES) ) LCKLVL(*ALL) SEQONLY(*NO).... : WRKACTJOB( ) CMTW (). 70 IBM - iseries:

77 . API QTNADDCR API Y API. API. :..., MYSQLLIB MYSQLLIB MYTBL SQL. : 60 CPA8351. QTNADDCR API API QTNADDCR API API. : CPA Y QTNADDCR API API.. OMTJRNE(*NONE)... 71

78 ... QTNCHGCO API. N( ). DRDA DDM N. APPC Y : :... (LCKLVL(*ALL).).. 1. ID IBM - iseries:

79 ( ) RPG. (RPG ).. DDS RTNDTA. RTNDTA.. 1. ID RTNDTA. 4.. LCKLVL(*CHG) LCKLVL(*CS). LCKLVL(*ALL)

80 .. (,.) QAQQINI( ). CHGQRYA( ) QRYOPTLIB. COMMITMENT_CONTROL_LOCK_LEVEL... Enter Enter. :.. Enter. ( : ). Enter..... Enter..... Enter..,, 74 IBM - iseries:

81 .. ( ) iseries DB2 Uniersal Database,..,. QIBM_TN_COMMIT_DURABLE *NO. ADDENVVAR( ).,. ADDENVVAR ENVVAR (QIBM_TN_COMMIT_DURABLE) VALUE (*NO). ADDENVVAR ENVVAR (QIBM_TN_COMMIT_DURABLE) VALUE (*NO) LEVEL (*SYS) : *JOBCTL. QIBM_TN_COMMIT_DURABLE *NO.. WRKENVVAR( ).. DDL... 75

82 :.. JKL Toy Company.. RPG.. : JKL Toy Company. JKL Toy Company. : JKL Toy Company. JKLPROD.. Program A.. JKL Toy Company Program A JKLPROD. Program A... Program A... Program A. (.) Program A. (.) Program A. Program A.. Program A.. 76 IBM - iseries:

83 . Program A.,... Program A Program A. (.) 3. Program A. (.) Program A. 4. Program A. 5. Program A. 6. Program A ( ).. 77

84 (IPL).., JKL Company (before-image) 100 (after-image) IBM - iseries:

85 . IPL.. (80) (100). IPL ( ).... :. i5/os, (DFU).. : CMTLIB. CMTLIB ITMP( ) (PF). (DDS). 10 A R ITMR 20 A ITEM 2 30 A ONHAND A K ITEM 2. TRNP( ) (PF).. DDS. 10 A R TRNR 20 A QTY A ITEM 2 40 A USER TRNL( ).. USER LIFO. DDS. 79

86 10 LIFO 20 A R TRNR PFILE (TRNP) 30 A K USER 4. STRDFU ITMP ITMU DFR. DFU. 5. CHGDTA ITMU ITMP. AA 450 BB 375 CC F CL ITMPCSC(). PGM DCL &USER *CHAR LEN(10) RTVJOBA USER(&USER) CALL ITMPCS PARM(&USER) ENDPGM ITMPCS DDS ITMPCSD.. IMPC. SEQNBR * A R PROMPT 2.00 A CA03(93 End of program ) 3.00 A CA04(94 Reiew last ) 4.00 A SETOFF(64 No rcd to rw ) 5.00 A 1 2 INVENTORY TRANSACTIONS 6.00 A 3 2 Quantity 7.00 A QTY 5 0I A 61 ERRMSG( Inalid A quantity 61) A +5 ITEM A ITEM 2 I A 62 ERRMSG( Inalid A Item number 62) A 63 ERRMSG( Rollback A occurred 63) A CF4 was pressed and A there are no A transactions for A this user A DSPATR(HI) A 23 2 CF4 Reiew last A transaction A R REVW 80 IBM - iseries:

87 24.00 A 1 2 INVENTORY TRANSACTIONS A +5 REVIEW LAST TRANSACTION A 3 2 Quantity A QTY EDTCDE(Z) A +5 Item A ITEM STRSEU. SEQNBR * FITMP UF E K DISK 2.00 F* KCOMIT 3.00 FTRNP O E DISK 4.00 F* KCOMIT 5.00 FTRNL IF E K DISK 6.00 F TRNR KRENAMETRNR FITMPCSD CF E WORKSTN 8.00 C* Enter parameter with User name for -TRNP- file 9.00 C *ENTRY PLIST C PARM USER C LOOP TAG C EXFMTPROMPT C* Check for CF3 for end of program C 93 DO End of Pgm C SETON LR C RETRN C END C* Check for CF4 for reiew last transaction C 94 DO Reiew last C* Check for existence of a record for this user in -TRNL- file C USER CHAINTRNR1 64 Not found C 64 GOTO LOOP C EXFMTREVW C GOTO LOOP C END C* Access Item record C ITEM CHAINITMR 62 Not found C* Handle -not found- Condition C 62 GOTO LOOP C* Does sufficient quantity exist C ONHAND SUB QTY TEST Minus C* Handle insufficient quantity C 61 DO C* Release Item record which was locked by the CHAIN for update C EXCPTRLSITM C GOTO LOOP C END C* Change ONHAND and update the Item record C Z-ADDTEST ONHAND C UPDATITMR C* Test for Special Simulation Conditions C ITEM IFEQ CC C* Simulate program need for rollback C QTY IFEQ C SETON 63 Simult Rlbck C* ROLBK 81

88 47.00 C GOTO LOOP C END C* Simulate an abnormal program cancellation by Di by zero C* Operator Should respond -C- to inquiry message C QTY IFEQ C Z-ADD0 ZERO C TESTZ DIV ZERO TESTZ 30 Msg occurs C END C* Simulate an abnormal job cancellation by DSPLY C* Operator Should System Request to another job C* and cancel this one with OPTION(*IMMED) C QTY IFEQ C CC=102 DSPLY Msg occurs C END C END ITEM=CC C* Write the -TRNP- file C WRITETRNR C* Commit the update to -ITMP- and write to -TRNP C* COMIT C GOTO LOOP OITMR E RLSITM 11. CRTRPGPGM ITMPCS. 12. CALL ITMPCSC Enter F AA 4 BB 14. F4. BB.. 5 FF(.) 9000 BB(.) 100 CC(.) 102 CC(RPG DSPLY. Enter.) 101 CC( INQMSGRPY 0. C RPG CL..) 15. DSPDTA ITMP. AA BB. AA = 447, BB = 371 CC = CC. 82 IBM - iseries:

89 16.. CRTJRNRCV( ) CMRLIB RCVR KB (CRTJRN) CMTLIB JRNTEST. MNGRCV(*SYSTEM) DLTRCV(*YES). JRNRCV STRJRNPF( ) FILE(CMTLIB/ITMP CMTLIB/TRNP) JRN(CMTLIB/JRNTEST). MAGES *AFTER. ITMP TRNP.. JID CALL ITMPCSC. 5 AA 6 BB F : DSPJRN CMTLIB/JRNTEST.. (R UP = update of ITMP R PT = record added to TRNP ). TRNP RPG. SEQONLY(*YES) RPG PT, RPG. 21. ITMPCSC CL. ( (*).) PGM DCL &USER *CHAR LEN(10) RTVJOBA USER(&USER) * STRCMTCTL LCKLVL(*CHG) CALL ITMPCS PARM(&USER) * MONMSG MSGID(RPG9001) EXEC(ROLLBACK) * ENDCMTCTL ENDPGM 83

90 STRCMTCTL. LCKLVL. MONMSG RPG RPG ROLLBACK. ENDCMTCTL. 22. ITMPCSC , 4.00, ITMPCS CALL ITMPCSC. 7 AA 8 BB F F DSPJRN CMTLIB/JRNTEST. C BC CSC CCM C EC STRCMTCTL..,.. ENDCMTCTL. IMAGES(*AFTER) (R UB RUP ). 30. CALL ITMPCSC. 12 AA 100 CC (. RPG ITMP CC.) 31. F4. AA. 84 IBM - iseries:

91 F DSPJRN CMTLIB/JRNTEST. (C RB ). ITMP. (R BR) (R UR). 36. R UB, UP, BR UR. 5. F UB ITMP UP BR UP UB UR RB. 37. CALL ITMPCSC, Enter, F AA 101 CC (. 0. INQMSGRPY. C. RPG CL.) 39. DSPJRN CMTLIB/JRNTEST. RPG CL MONMSG EXEC. RB. 40. WRKJOB. 85

92 41. CALL ITMPCSC. 14 AA 102 CC (RPG DSPLY. 1.) ENDJOB OPTION(*IMMED) CALL ITMPCSC F4.. AA. 45. F DSPJRN CMTLIB/JRNTEST.. RB QWTPITPP... LCKLVL(*ALL) LCKLVL(*ALL) IBM - iseries:

93 . 1.. TRNP.. 87

94 2. PROMPT. 3. F3. 4. F4. 5. ITEM.. 6. ITMP. 7. ITMP (ONHAND) (QTY) ITMP ONHAND ITMR. 13. ROLLBACK ITEM. 14. QTY= QTY= INQMSGRPH C QTY= TRNP USER TRNL. LIFO. 20. TRNL IBM - iseries:

95 :. : ,.., (PRDMSTP). 3. (ISSLOGL)..,,,. PRDMSTP DDS SEQNBR * A R PRDMSTR TEXT( Master record ) 2.00 A PRODCT 3 COLHDG( Product Number ) 89

96 3.00 A DESCRP 20 COLHDG( Description ) 4.00 A ONHAND 5 0 COLHDG( On Hand Amount ) 5.00 A EDTCDE(Z) 6.00 A K PRODCT ISSLOGP ISSLOGP DDS SEQNBR * A R ISSLOGR TEXT( Product log record ) 2.00 A PRODCT 3 COLHDG( Product Number ) 3.00 A DESCRP 20 COLHDG( Description ) 4.00 A QTY 3 0 COLHDG( Quantity ) 5.00 A EDTCDE(Z) 6.00 A USER 10 COLHDG( User Name ) 7.00 A DATE 6 0 EDTCDE(Y) 8.00 A COLHDG( Date ) ISSLOGL DDS SEQNBR * A LIFO 2.00 A R ISSLOGR PFILE(ISSLOGP) 3.00 A K USER PRDISSD DDS SEQNBR * A REF(ISSLOGP) 2.00 A R PROMPT 3.00 A CA03(98 End of program ) 4.00 A CA02(97 Where am I ) 5.00 A 1 20 ISSUES PROCESSING 6.00 A 3 2 Quantity 7.00 A QTY R I A 62 ERRMSG( Not enough A Qty 62) A +6 Product A PRODCT R I A 61 ERRMSG( No Product A record found 62) A No Preious record exists A 24 2 CF2 Last transaction A R RESTART A 1 20 LAST TRANSACTION A INFORMATION A 5 2 Product A PRODCT R A 7 2 Description A DESCRP R A 9 2 Qty A QTY R +1REFFLD(QTY). 90 IBM - iseries:

97 91

98 RPG COMMIT PRDMSTP... (LIFO)... ( ). RPG. (==>). RPG SEQNBR * =>1.00 FPRDMSTP UP E K DISK KCOMIT =>2.00 FISSLOGL IF E K DISK KCOMIT 3.00 PRDISSD CP E WORKSTN 4.00 *ENTRY PLIST 5.00 PARM USER C* 7.00 C* Initialize fields used in Trans Log Rcd 8.00 C* 9.00 C MOVE UDATE DATE C* C* Basic processing loop C* C LOOP TAG C EXFMTPROMPT C 98 GOTO END End of pgm C 97 DO Where am I C EXSR WHERE C GOTO LOOP C END C PRODCT CHAINPRDMSTR 61 Not found C 61 GOTO LOOP C ONHAND SUB QTY TEST Less than C 62 DO Not enough C EXCPTRLSMST Release lock C GOTO LOOP C END C* C* Update master record and output the Transaction Log Record C* C Z-ADDTEST ONHAND C UPDATPRDMSTR C WRITEISSLOGR =>33.00 C COMIT C GOTO LOOP C* C* End of program processing C* 92 IBM - iseries:

99 38.00 C END TAG C SETON LR C* C* WHERE subroutine for "Where am I" requests C* C WHERE BEGSR C USER CHAINISSLOGL 55 Not found C N55 EXFMTRESTART C ENDSR OPRDMSTR E RLSMST RPG PRDISS CL SEQNBR * PGM 2.00 DCL &USER *CHAR LEN(10) 3.00 STRCMTCTL LCKLVL(*CHG) 4.00 RTVJOBA USER(&USER) 5.00 CALL PRDISS PARM(&USER) 6.00 MONMSG MSGID(RPG900l) EXEC(ROLLBACK) 7.00 ENDCMTCTL 8.00 ENDPGM *CHG... (.) *ALL. *ALL. RPG PRDISS CL. STRCMTCTL/ENDCMTCTL. (RTVJOBA ). MONMSG :. 101 :.. 95 :. 93

100 : , IBM - iseries:

101 ,. :.. (PRDMSTP PRDLOCP). PRDRCTD. PRDRCTP.. : 122. PRDLOCP DDS SEQNBR * A R PRDLOCR TEXT( Location record ) 2.00 A PRODCT 3 COLHDG( Product Number ) 3.00 A LOCATN 6 COLHDG( Location ) 4.00 A LOCAMT 5 0 COLHDG( Location Amount ) 5.00 A EDTCDE(Z) 6.00 A K PRODCT 7.00 A K LOCATN PRDRCTD DDS SEQNBR * A REF(PRDMSTP) 2.00 A R PROMPT 3.00 A CA03(98 End of program ) 4.00 A SETOFF(71 RESTART ) 5.00 A 1 20 PRODUCT RECEIPTS 6.00 A 3 2 Quantity 7.00 A QTY 3 OI A +6 Product 95

102 9.00 A PRODCT R I A 61 ERRMSG( No record A found in the A master file 62) A +6 Location A LOCATN R I +1REFFLD(LOCATN PRDLOCP) A 62 ERRMSG( No record A found in the A location file 62) A 9 2 Last Transaction A This is restart A information A DSPATR(HI BL) A 12 2 Quantity A Product A Location A Description A LSTPRD R 14 15REFFLD(PRODCT) A LSTLOC R 14 26REFFLD(LOCATN *SRC) A LSTQTY R 14 5REFFLD(QTY *SRC) A EDTCDE(Z) A LSTDSC R 14 35REFFLD(DESCRP) (PRDRCTP) DDS SEQNBR * A LIFO 2.00 A REF(PRDMSTP) 3.00 A R PRDRCTR 4.00 A USER A PRODCT R 6.00 A DESCRP R 7.00 A QTY A LOCATN R REFFLD(LOCATN PRDLOCP) 9.00 A K USER.. PRDRCTP LIFO..... RPG. RPG.. 96 IBM - iseries:

103 ,.. (PRDMSTP) (PRDLOCP)

104 RPG. (PRDRCTP ) CL(STRCMTCTL ). 98 IBM - iseries:

105 RPG SEQNBR * FPRDMSTP UF E K DISK KCOMIT 2.00 FPRDLOCP UF E K DISK KCOMIT 3.00 FPRDRCTD CF E WORKSTN 4.00 F* 5.00 F* The following file is the specific notify object for this pgm F* It is accessed only in a restart situation and at the 7.00 F* end of the program to delete any records. The records 8.00 F* are written to the notify object by Commitment Control F* FPRDRCTP UF E K DISK ICMTID E DSPRDRCTP C *ENTRY PLIST C PARM USER C MOVE USER10 USER C* C* Check for restart information - get last rcd per user C* PRDRCTP file access path is in LIFO sequence C* C USER CHAINPRDRCTR 20 Not found C N20 DO Restart C EXSR MOVLST Moe to last C SETON 71 Restart C END C* C* Basic processing loop C* C L00P TAG C EXFMTPROMPT C 98 GOTO END End of pgm C PRODCT CHAINPRDMSTR 61 Not found C 61 GOTO L00P C KEY KLIST C KFLD PRODCT C KFLD LOCATN C KEY CHAINPRDLOCR 62 Not found C 62 DO C EXCPTRLSMST Release lck C GOTO L00P C END C ADD QTY ONHAND Add C ADD QTY LOCAMT C UPDATPRDMSTR Update C UPDATPRDLOCR Update C* C* Commit and moe to preious fields C* C CMTID COMIT C EXSR MOVLST Moe to last C GOTO L00P C* C* End of program processing C* C END TAG C SETON LR C*56.00 C* Delete any records in the notify object 99

106 57.00 C* C DLTLP TAG C USER CHAINPRDRCTR 20 Not found C N20 DO C DELETPRDRCTR Delete C GOTO DLTLP C END C* C* Moe to -Last Used- fields for operator feedback C* C MOVLST BEGSR C MOVE PRODCT LSTPRD C MOVE LOCATN LSTLOC C MOVE QTY LSTQTY C MOVE DESCRP LSTDSC C ENDSR OPRDMSTR E RLSMST 89 :. :. ID. :. ID USER PGMNAM PRODCT LOCATN DESC QTY DUMMY ( ) IBM - iseries:

107 95 :. :.. : 122. NFYOBJP ( ) SHARE(*YES).. ( RPG.) 89 :. : R. 101

108 : 122. SEQNBR * FPRDMSTP UF E K DISK KCOMIT 2.00 FPRDLOCP UF E K DISK KCOMIT 3.00 FPRDRCTD CF E WORKSTN 4.00 F* 5.00 F* The following is a compile time array which contains the 6.00 F* restart information used in the next example 7.00 F* 8.00 E RTXT Restart text 9.00 I* I* Data structure used for info passed to notify object I* ICMTID DS I 1 10 USER I PGMNAM I PRODCT I LOCATN I DESCRP I P QTY I DUMMY I RSTART C *ENTRY PLIST C PARM USER C* C* Initialize fields used to communicate with std program C* C MOVE USER10 USER C MOVEL PRDRC2 PGMNAM C MOVE R RQSCOD Read Rqs C CALL STDCMT C PARM RQSCOD C PARM RTNCOD C PARM CMTID 220 Data struct C RTNCOD IFEQ 1 Restart C EXSR MOVLST Moe to last C SETON 71 Restart C END C* C* Initialize fields used in notify object 102 IBM - iseries:

109 39.00 C* C MOVEARTXT,1 RSTART Moe text C* C* Basic processing loop C* C LOOP TAG C EXFMTPROMPT C 98 GOTO END C PRODCT CHAINPRDMSTR 61 Not found C 61 GOTO LOOP C KEY KLIST C KFLD PRODCT C KFLD LOCATN SEQNBR * C KEY CHAINPRDLOCR 62 Not found C 62 DO C EXCPTRLSMST Release lck C GOTO LOOP C END C ADD QTY ONHAND Add C ADD QTY LOCAMT C UPDATPRDMSTR Update C UPDATPRDLOCR Update C* C* Commit and moe to preious fields C* C CMTID COMIT C EXSR MOVLST Moe to last C GOTO LOOP C* End of program processing C* C END TAG C MOVE D RQSCOD Dlt Rqs C CALL STDCMT C PARM RQSCOD C PARM RTNCOD C PARM CMTID C SETON LR C* C* Moe to -Last Used- fields for operator feedback C* C MOVLST BEGSR C MOVE PRODCT LSTPRD C MOVE LOCATN LSTLOC C MOVE DESCRP LSTDSC C MOVE QTY LSTQTY C ENDSR OPRDMSTR E RLSMST ** RTXT Restart Text Inentory Menu - Receipts Option :. 103

110 .. ( ). R( ).. 0 ( ). 1 ( ). WA ( )... DE ( ) OE ( ) O. CA ( ). SA ( )... : (STDCMT) IBM - iseries:

111 . O=. RPG. 98 LR OFF. C=. 98 OFF. R=. NFYOBJP.. CMTID. W=. NFYOBJP. D=.... S=... ( ). STDCMT. : 122. SEQNBR * FNFYOBJP UF E K DISK A 2.00 ICMTID DS 3.00 I 1 10 UNQUSR 4.00 I UNQPGM 5.00 I BIGFLD 6.00 C *ENTRY PLIST 7.00 C PARM RQSCOD 1 105

112 8.00 C PARM RTNCOD C PARM CMTID C UNQUSR CABEQ*BLANKS BADEND H1 Inalid C UNQPGM CABEQ*BLANKS BADEND H2 Inalid C* C* O for Open C* C RQSCOD IFEQ O Open C SETON 98 End LR C GOTO END C END C* C* C for Close C* C RQSCOD IFEQ C Close C SETOF C GOTO END C END C* C* R for Read - Get last record for the key C* C RQSCOD IFEQ R Read C KEY KLIST C KFLD UNQUSR C KFLD UNQPGM C KEY CHAINNFYOBJR 51 Not found C 51 MOVE 0 RTNCOD C 51 GOTO END C MOVE 1 RTNCOD Found C LOOPl TAG C KEY READENFYOBJR 20 EOF C 20 GOTO END C GOTO LOOP C END C* C* W FOR Write C* C RQSCOD IFEQ W Write C WRITENFYOBJR C GOTO END C END C* C* D for Delete - Delete all records for the key C* C RQSCOD IFEQ D Delete C KEY CHAINNFYOBJR 51 Not found C 51 MOVE 0 RTNCOD C 51 GOTO END C MOVE 1 RTNCOD Found C LOOP2 TAG C DELETNFYOBJR C KEY READENFYOBJR 20 EOF C N20 GOTO LOOP C GOTO END C END C* C* S for Search for the last record for this user C* (Ignore the -Program- portion of the key) 106 IBM - iseries:

113 66.00 C* C RQSCOD IFEQ S Search C UNQUSR SETLLNFYOBJR 20 If equal C N20 MOVE 0 RTNCOD C N20 GOTO END C MOVE 1 RTNCOD Found C LOOP3 TAG C UNQUSR READENFYOBJR 20 EOF C N20 GOTO LOOP C GOTO END C END C* C* Inalid request code processing C* C SETON H2 Bad RQS code C GOTO BADEND C* C* End of program processing C* C END TAG C N98 SETON LR C RETRN C* BADEND tag is used then fall thru to RPG cycle error return C BADEND TAG : IPL CL. : IPL CL... S( ).., :.. 107

114 : : 122. SEQNBR * PGM 2.00 DCLF CMTINLD 3.00 DCL &RQSCOD *CHAR LEN(1) VALUE(S) /* Search */ 4.00 DCL &RTNCOD *CHAR LEN(1) 5.00 DCL &CMTID *CHAR LEN(220) 6.00 DCL &USER *CHAR LEN(10) 7.00 DCL &INFO *CHAR LEN(50) 8.00 RTVJOBA USER(&USER) 9.00 CHGVAR &CMTID (&USER *CAT XX) /* The XX is required to preent a blank Pgm nam */ CALL STDCMT PARM(&RQSCOD &RTNCOD &CMTID) IF (&RTNCOD *EQ 1 ) DO /* RESTART REQD */ CHGVAR &INFO %SST(&CMTID ) SNDRCVF RCDFMT(RESTART) ENDDO /* */ /* Enter normal initial program statements */ /* or -TFRCTL- to first menu program */ /* */ ENDPGM 104 : (STDCMT)... (ENDCMTCTL) IBM - iseries:

115 (heuristic). (heuristic). QSYSOPR CPD83D9 CPD83E : STRCMTCTL ENDCMTCTL. STRCMTCTL... STRCMTCTL.....,.. 1. ENDCMTCTL. API ENDCMTCTL. 109

116 , ENDCMTCTL STRCMTCTL... STRCMTCTL. ENDCMTCTL.. SAVACTWAIT. API (RBR).. API IBM - iseries:

117 , ( ). STRCMTCTL LCKLVL(*CHG *CS).. WRKJOB. STRCMTCTL..... CPFxxxx. CPDxxxx... CPD8351. CPD8352 &3. CPD8353 &1. 111

118 CPD8354 DDM &1. CPD8355 DDL &1. CPD8356. CPD8358 &1. CPD8359 DDM &1. CPD835A DDL &3. CPD835C &2 &1. CPD835D DRDA SQL. CPF835F. CPD8360. CPD8361 &1 API. CPD8362 &1 API. CPD8363 &1 API &4. CPD8364 &1 API &4. CPD836F. CPD83D1 &4 API. CPD83D IBM - iseries:

119 CPD83D7. CPD83D9 (heuristic). CPF83DB. CPD83DC. &2. CPD83DD. &1. CPD83DE. CPD83EC &1 API. CPD83EF. CPF8350. CPF8355 ENDCMTCTL.. CPF8356 &1. CPF8358 &2 &1. CPF8359. CPF835A &1. CPF835B. CPF835C. CPF

120 CPF8364. &3. CPF8367. CPF8369 API. &1. CPF83D0. CPF83D2 ==. CPF83D3 == (heuristic). CPF83D4. CPF83E1. CPF83E2. CPF83E3. CPF83E4. CPF83E6. CPF83E7 X/Open. CALL. RPG 0. INQMSGRPY( ) IBM - iseries:

121 . CALL. RPG. CALL RPGA MONMSG MSGID(RPG9001) EXEC(ROLLBACK) /*Rollback if pgm is canceled*/ COBOL. CALL COBOLA MONMSG MSGID(CBE9001) EXEC(ROLLBACK) /*Rollback if pgm is canceled*/..... I/O CPF83DB... API.. CPF8363. CPF83DB... CPD8353 CPD8354 CPD8355 CPD CPF

122 I/O 1. CPD API. API. 3. CPF CPD CPD8359 CPD835A CPD CPF CPF8356 CPF835C CPF83E4 API. 5, CPD8363( ) CPD8364( ),. IPL IPL, CPF835F CPF8359 CPF8363. QDBSRVxx QHST. QHST CPI8356 IPL. CPC8351 IPL. API. 5, CPD8363( ) CPD8364( ),. 116 IBM - iseries:

123 . A B. B A a.. b. ID ID. RTVJRNE( ) CMTCYCID. c (LCKLVL(*ALL).) iseries Naigator ( )

124 RTVJRNE( ).. ( ).. 1. iseries Naigator ID iseries Naigator ( )...., (heuristic). (heuristic). (heuristic) IBM - iseries:

125 (heuristic).... API. API API. API... (heuristic). 1. iseries Naigator ,, ID...,. (heuristic) SNA, TCP/IP.. iseries Naigator. 119

126 ID. ID. ID APPN.RCHASL97.X APPN.RCHASL97.X ID. 44 XA iseries DB2 Uniersal Database(UDB) X/Open. 51 STRCMTCTL( ) iseries Naigator ( ).., ROLLBACK IN PROGRESS. (WRKCMTDFN). 1. WRKCMTDFN JOB(*ALL). 2. F WRKCMTDFN. F IBM - iseries:

127 (*ALLOBJ).. 1. WRKCMTDFN JOB(*ALL) (). (DSPFD), *YES... (CHGJRNOBJ). CHGJRNOBJ. CHGJRNOBJ. *ALLOBJ. *ALLOBJ QGPL/QTNNOENDRB. CRTDTAARA( ) IBM (PDF ), Information Center. PDF. V5R1 COBOL/400 User s Guide (5939KB). V5R1 RPG/400 User s Guide (2048KB). IBM Connecting WebSphere to DB2 UDB Serer (5MB) Adanced Functions and Administration on DB2 Uniersal Database for iseries (5529KB) Stored Procedures and Triggers on DB2 Uniersal Database for iseries (5836KB) Striing for Optimal Journal Performance on DB2 Uniersal Database for iseries (3174KB) 121

128 The Open Group( SQL XA API PDF PDF. 1. PDF ( ). 2. PDF. 3. PDF. 4.. Adobe Acrobat Reader PDF Adobe Reader. Adobe ( IBM., IBM, (, ). IBM, IBM, ,, 3.,,,,. 122 IBM - iseries:

129 .. IBM,. IBM. IBM, IBM,. IBM,,. IBM,. IBM ,.. : (DBCS) IBM. IBM World Trade Asia Corporation Licensing 2-31 Roppongi 3-chome, Minato-ku Tokyo 106, Japan. IBM, (, ).,..,. IBM / /. IBM,. IBM. Copyright IBM Corp. 2003,

130 IBM. (i) ( ) (ii) ,.. (, ). IBM IBM, IBM (IPLA), IBM....,.. IBM,. IBM IBM,,. IBM. IBM..,,.. :.,,,.. IBM, IBM - iseries:

131 ( ) ( ). IBM Corp.. Copyright IBM Corp. _ _. All rights resered.. i5/os. IBM Corporation. C/400 COBOL/400 DB2 DB2 Uniersal Database Distributed Relational Database Architecture DRDA i5/os IBM IBM( ) Integraged Language Enironment iseries Redbooks RPG/400 WebSphere UNIX The Open Group.,.. :,. IBM

132 :,. IBM 2,.,,,. IBM IBM.,. IBM. IBM. 126 IBM - iseries:

133

134