DB2 Version 7 The complete story?

Volvo Information Technology Dept. 2540 Slide: 1

Volvo Information Technology

UNIX

OS/390

Win2000

2540

DB2 Version 7The complete story?

Issuer : DB-Team 2540

Issued : 2002-02-25



DB2 UDB Server forOS/390 and z/OS

Version 7



It started nearly 2 years ago…...

• In June 2001 we did the first installation in technical test

• In September 2001 Customer Test (D2VT) was upgraded to V7

• Few problems during Customer Test. CAE + Vinfo

• 18th of November 2001 the subsystems in V201 & V202 was upgraded to V7

• and…...



DB2 Version 7 PROBLEMS!!!

• Customer Test.

• Class-package of new DB2-client DB2RTC was delayed, old client (CAE V5.2) causes the Connect Server to Stop.

• Application abend, fixed by Rebind.

• Prod-inst. 18/11.

• Lots of abends, DB2 stops, decision to do a Fallback to V6 (19/11).

• IBM Fix.

• Upgrade of D2BM during a weekend to verify the fix. Still Problems. Fallback to V6 again.




• The Problem. The error seem to be caused by Plan or Packages where latest bind was done in DB2 V2.3.

• Rebind February. Central Rebind was done of all ‘old’ plans & packages.

• The 17th of February. All subsystems in Gothenburg up and running on V7




• DB2RTC. Test of new client and DB2 V7. Char and Varchar field with Local Characters might be truncated if accessed from Office/2K

• DB2RTC. Did not work together with Business Object

• OTG. Old version of Gateway did not work with V7. Fallback to V6 in D2O1.




• DB2RTC. Test of new client and DB2 V7. Char and Varchar field with Local Characters might be truncated if accessed from Office/2K

• We have added Mr ÅKERBÄRGÖ to our Q.Staff, he helps us to discover codepage-problems.

• Now ÅKERBÄRGÖ was shown as ÅKERBÄR in Excel

• NAME in STAFF is VARCHAR (9)

• 2+1+1+1+1+2+1=9

• Å K E R B Ä R

• DISABLEUNICODE=1 as bypass, but set in Connect Server disables all client/applications

• Solution in FP7….FP8….FP9?




• DB2RTC. Did not work together with Business Object

• The version of BO(5.1.1) in our Class environment did not have support for V7 FP3 (our DB2RTC level)

• New package of BO(5.1.3) scheduled but will take time

• Our Site in Gent has been running DB2RTC towards the same level of BO for a while without problems???

• They were running V7 without Fixpacks

• Bypass , local install of new BO or server-based reports




• OTG. Old version of Gateway (V4) did not work with V7. Fallback to V6 in D2O1.

• V8.04 installed , still the same problem

• While waiting for fix from Oracle we have to run DB2 V6 I 2 subsystems.

• No fix will be delivered on V8, wait for 9.2

• Still some problems in 9.2, and the Case tools used must also be certified with v9.2



DB2 Version 7 ”PROBLEMS!!!”

• REPEAT USER COLLID EXIT LOCATORS RESTRICT USING COLUMN EXTERNAL LOCK RESULT VALIDPROC COMMENT FENCED LOCKMAX RESULT_SET_LOCATOR VALUES COMMIT FETCH LOCKSIZE RETURN VARIANT CONCAT FIELDPROC LONG RETURNS VCAT CONDITION FINAL LOOP REVOKE VIEW CONNECT FOR MICROSECOND RIGHT VOLUMES CONNECTION FROM MICROSECONDS ROLLBACK WHEN CONSTRAINT FULL MINUTE RUN WHERE CONTAINS FUNCTION MINUTES SAVEPOINT WHILE CONTINUE GENERAL MODIFIES SCHEMA WITH CREATE GENERATED MONTH SCRATCHPAD WLM CURRENT GET MONTHS SECOND YEAR CURRENT_DATE GLOBAL NO SECONDS YEARS CURRENT_LC_CTYPE GO NOT

• Harder restriction for Reserved Words gives error at Bind. Enclose Reserved Words within “, Select “NO” Complete list of Reserved Words, please see SQL Reference

• Insert into T0T261P.VY_RATTIGHET, SQLCODE=-199 DSNT408I SQLCODE = -199, ERROR: ILLEGAL USE OF KEYWORD SYSTEM, TOKEN ( SELECT WAS EXPECTED



DB2 Version 7 ”PROBLEMS!!!”

• Why ?

• Lack of resources

• Missing routines for Rebind

• Complex environment - Dependencies



Fetch First x Row Only



Online LOAD Resume

• + + Availability

• SQL applications are not drained

• + Ease of use

• No need of INSERT programs

• + Integrity

• Triggers are fired

• - Performance

• Compared to offline LOAD



DB2 V7 Unicode (UTF8)

• H å k a n• EBCDIC

• 00800000 0200C8D092819540 40404040• ASCII

• 00800000 020048E56B616E20 20202020• Unicode

• 00800000 020048C3A56B616E 2020202020





Crossload

• Maj 2002

• Extern applikation utvecklad mot DB2/W2K skulle verifieras/performance testas I zOS

• Data för volyms-test i DB2/w2k , stora volymer – många tabeller –ont om tid Vad gör vi???

• XLOAD var svaret !



Hur används Crossload

• Crossload används genom att i en std LOAD utility i z/OS via en cursor peka ut en tabell i ett annat DB2

• Om detta ligger på annan plattform så får man konvertering av datat på köpet

• Kolumn-namn måste vara samma eller använd AS

//DSNUPROC.SYSIN DD *

DECLARE C1 CURSOR FOR

SELECT "ID" , "DEPT" , "JOB" , "YEARS" , "SALARY" , "COMM" , "NAME"

FROM UDBCONE.Q.STAFF

ENDEXEC

LOAD DATA INCURSOR C1 RESUME YES LOG YES

INTO TABLE STAFF



Crossload, Prepare CDB

INSERT INTO

SYSIBM.LOCATIONS ( "LOCATION" , "LINKNAME" , "PORT" )

VALUES ('UDBCONE','UDBCONE','50000') ;

INSERT INTO

SYSIBM.IPNAMES ( "LINKNAME" , "SECURITY_OUT" , "USERNAMES","IPADDR" )

VALUES ('UDBCONE','P','O','131.97.56.42' ) ;

INSERT INTO

SYSIBM.USERNAMES ( "TYPE" , "AUTHID" , "LINKNAME" ,"NEWAUTHID" , "PASSWORD" )

VALUES ('O','V00DB21','UDBCONE','DB2ADMIN','DB2ADMIN') ;



Bind DSNUTIL For XLOAD Function

BIND PACKAGE(DSNUTIL) MEMBER(DSNUGSQL) -

ACTION(REPLACE) ISOLATION(CS) ENCODING(EBCDIC) -

VALIDATE(BIND) CURRENTDATA(NO) KEEPDYNAMIC(NO) -

DBPROTOCOL(DRDA)



Bind Packages For DSNUTIL,SPUFI,DSNTEP2,DSNTIAD

In UDBBIND -

PACKAGE(UDBCONE.DSNUTIL) MEMBER(DSNUGSQL) ACTION(REPLACE) -

ISO(CS) SQLERROR(NOPACKAGE) VALIDATE(BIND) CURRENTDATA(NO)

BIND -

PACKAGE(UDBCONE.DSNESPCS) MEMBER(DSNESM68) ACTION(REPLACE) -

ISO(CS) SQLERROR(NOPACKAGE) VALIDATE(BIND)

BIND -

PACKAGE(UDBCONE.DSNTEP2) MEMBER(DSNTEP2) ACTION(REPLACE) -


BIND -

PACKAGE(UDBCONE.DSNTIAD) MEMBER(DSNTIAD) ACTION(REPLACE) -


BIND -

PACKAGE(UDBCONE.CF254) MEMBER(DSNTIAUL) ACTION(REPLACE) -

ISO(CS) SQLERROR(NOPACKAGE) VALIDATE(BIND) CURRENTDATA(NO)



REBIND SPUFI,DSNTEP2,DSNTIAD,DSNTIAUL With DBPROTOCOL(DRDA) In z/OS

REBIND PACKAGE(DSNESPCS.DSNESM68) DBPROTOCOL(DRDA)

REBIND PACKAGE(DSNESPRR.DSNESM68) DBPROTOCOL(DRDA)

REBIND PACKAGE(DSNTIAD.DSNTIAD.(*)) DBPROTOCOL(DRDA)

REBIND PACKAGE(DSNTEP2.DSNTEP2.(*)) DBPROTOCOL(DRDA)

REBIND PACKAGE(CF254.DSNTIAUL.(*)) DBPROTOCOL(DRDA)

REBIND PLAN(DSNESPCS) PKLIST(*.DSNESPCS.DSNESM68) DBPROTOCOL(DRDA)

REBIND PLAN(DSNESPRR) PKLIST(*.DSNESPRR.DSNESM68) DBPROTOCOL(DRDA)

REBIND PLAN(DSNTIAD) PKLIST(*.DSNTIAD.*) DBPROTOCOL(DRDA)

REBIND PLAN(DSNTEP2) PKLIST(*.DSNTEP2.*) DBPROTOCOL(DRDA)

REBIND PLAN(DSNTIAUL) PKLIST(*.CF254.DSNTIAUL) DBPROTOCOL(DRDA)



Crossload, First try

• CDB-definition

• Location namn måste vara Databas namn på W2K, Alias fungerar ej

• Restriktion , Fel Hur är nuvarande status?

• Currentdata(NO) viktigt

• Första loaden tog hur lång tid som helst…..

• Lägg till FOR FETCH ONLY, rena dunderkuren

• Bindade om package med Currentdata(NO) för att erhålla blockning av data

• Och hur blev resultatet?



Crossload, Source Tabell

SELECT * FROM UDBCONE.Q.STAFF WHERE ID BETWEEN 80 AND 100 ;

---------+---------+---------+---------+---------+---------+----

ID NAME DEPT JOB YEARS SALARY COMM

---------+---------+---------+---------+---------+---------+----

80 JAMES 20 CLERK ------ 13504.60 128.20

90 KOONITZ 42 SALES 6 18001.75 1386.70

100 PLOTZ 42 MGR 7 18352.80 ---------

99 ÅKERBÄRGÖ 10 MGR 7 18357.50 ---------

91 AÄÖÅABCDE 2540 ÅTEST 12 23.45 23.45

92 ABÖÅABCDE 2540 ÅÄEST 12 23.45 23.45

93 ÅÄÖÅAB 2540 ÅÄÖST 12 23.45 23.45

DSNE610I NUMBER OF ROWS DISPLAYED IS 7

DSNE616I STATEMENT EXECUTION WAS SUCCESSFUL, SQLCODE IS 100



Crossload, Resultat Tabell

SELECT * FROM STAFF WHERE ID BETWEEN 80 AND 100 ;

---------+---------+---------+---------+---------+---------+----

ID NAME DEPT JOB YEARS SALARY COMM

---------+---------+---------+---------+---------+---------+----

80 ..... 20 ..... ------ 13504.60 128.20

90 ....... 42 ..... 6 18001.75 1386.70

100 ..... 42 ...@@ 7 18352.80 ---------

99 [....{..| 10 ...@@ 7 18357.50 ---------

91 .{|[..... 2540 [.... 12 23.45 23.45

92 ..|[..... 2540 [{... 12 23.45 23.45

93 [{|[.. 2540 [{|.. 12 23.45 23.45





Crossload, Hex mot kolumn

SELECT ID,HEX(NAME) FROM STAFF WHERE ID BETWEEN 80 AND 100 ;

---------+---------+---------+---------+---------+---------+---------

ID

---------+---------+---------+---------+---------+---------+---------

80 3F3F3F3F3F

90 3F3F3F3F3F3F3F

100 3F3F3F3F3F

99 B53F3F3F3F433F3FBB

91 3F43BBB53F3F3F3F3F

92 3F3FBBB53F3F3F3F3F

93 B543BBB53F3F





Crossload, Problem

• Krävde att sista kolumnen var ett CHAR-fält

• Flyttade om ordningen i Select satsen

• Lösning finns apar PQ54816 / UQ63417



Crossload, Performance

Table MAX REC LENGTH Compress NO.OF RECS TIME Rows/min

TAB1 101 Y 45070695 02:52:40 260'

TAB2 132 20869642 01:25:08 245'

TAB3 132 Y 20869642 01:16:50 271'

TAB4 52 15000002 00:38:47 384'

TAB5 205 Y 11322252 00:47:49 235'

TAB6 329 Y 6001521 00:50:33 120'

TAB7 65 5000000 00:13:35 370'



Crossload

• December 2002

• Egenutvecklad applikation med utvecklingsmiljö i DB2/W2K vill flytta upp datat till målmiljön på zOS

• Nu visste vi svaret – XLOAD !

• Och problemen var ju åtgärdade !?



Crossload, Nya Problem

• Date fält fungerar ej

• Olika code page – datum presentation?

• Nya fel dök upp visade sig ej bero på datum utan återigen var det en bug som var beroende av i vilken ordning kolumnerna låg.



Crossload Summering

• En förutsättning för utveckling på Windows plattform med z/OS som tänkt mål-plattform

• Bra Performance

• Enkelt att använda

• Viktigt att definitionerna är samma, tex hade man på windows 4 kolumner på vardera VARCHAR(255) som utgjorde nyckel. Detta fungerade ej på z/OS. Kolumnerna i z/OS definierades som VARCHAR(20) i stället. Detta krävde att substr användes –

• SUBSTR(PARTNOPREFIX,1,20) AS PARTNOPREFIX

• Andra hållet behövs också, dvs från z/OS till Windows



Restart Light

• Nyttjas i vår Data Sharing miljö

• Om en lpar går ner startas berörd member upp i annan lpar med Light Option för att släppa lås



Unload Utility

• Äntligen en riktig Unload utility!



DB2 Connect

• Alternativ ?

Documents

DB2 Version 7 The complete story?