Supports built in performance fallback from rebind activity due to database upgrade/maintenance and general rebind performance work. Free the package(s) in the high order collection. (FPF – free package fallback)
Understanding the Relationship plan(s) package path collection(s) package(s)
A plan points at one to many collections
A collection contains one to many packages and package versions
PACKAGE PATH points to one to many collections (for SQLJ, SP, Triggers who do not have/need plan ties)
PACKAGE SET points to only one collection (not shown - as package path should be used for flexibility)
BATCH EXECUTE PLAN(xxxxxxxx) PROGRAM(pppppppp)
CICS RDO ties TRANid to PLAN
SQLJ PACKAGE PATH denotes which collections to search for package execution. If not used (in program or connection pool), the collection tied to the db2customization/db2sqljbind is used. In order to have more than one collection scope for a java program, SET CURRENT PACKAGE PATH must be used. Contoken match drives execution.
Plan, collection and package relationship Execution ties, how DB2 finds your COLLID and package
The Big Picture PRECOMPILE Syntax checks SQL statements and :host variables referenced by them, including DCLGEN variables. Translates SQL into host language calls and comments out SQL, creating a parameter list . The consistency token is introduced x’487A7C9E87E7Y68E’ Stores the VERSION value in the DBRM and modified source code (VERSION(AUTO) for packages). Does not validate DB2 objects against the catalog tables! (DSNDB06) BIND Translates SQL into executable instructions. Validates objects against the DB2 catalog tables. Optimizes SQL - Access Path Selection. Validates security / authorizations. REBIND Validates objects against the DB2 catalog tables. Optimizes SQL - Access Path Selection. Validates security / authorizations. Does not reference DBRMLIB pds, gets SQL from the directory and catalog [DSNDB01/DSNDB06]. SOURCE PreCompile Mod-Source CONTOKEN Compile Link Load executes in executes in App Address Space CICS/BATCH/TSO DB2 Address Space THREAD DBRM name CONTOKEN Section # Statement # SQL call DSNHLI CONTOKEN DBRM BIND REBIND package plan
Execution Flow – One Layer Deeper DSNDB01 SKCT & SKPT pages are read into the database buffer pool BP0 Pages copied into EDM pool, which is in DBM1 below the 2 GB bar. DBM1 SKCT Global Dynamic Statement Cache EDM DBD Pool DSNHLI Entry Point Parm list (DBRM name, contoken, Section #, Statement #) SQL Call SKPT CT Thread Storage 2 GB bar EDM Pool LOB Sort Pool Rid Pool Buffer Pool Compression Dictionary Castout Engine Work Area Buffer ControlBlocks Application Copy
Joan Jett Loves Package Based SQL! DB2 DB2 plan Package DBRM A CONTOKEN DBRM B CONTOKEN BIND PACKAGE(s_SH) MEMBER(A) LIBRARY(‘FXes.DBRMLIB’) ; BIND PACKAGE(s_SH) MEMBER(B) LIBRARY(‘FXes.DBRMLIB’); DB2 DB2 plan Package DBRM B CONTOKEN DBRM A CONTOKEN BIND PACKAGE(s_SH) MEMBER(B) LIBRARY(‘FXes.DBRMLIB’); DB2 plan DBRM A CONTOKEN DBRM B CONTOKEN BIND PLAN OSHDE19 MEMBER(A,B) LIBRARY(‘FXes.DBRMLIB’); BIND PLAN OSHDE19 PKLIST( *.s_SH.*, *.s_CM); BIND PLAN OSHDE19 MEMBER(A) LIBRARY(‘FXes.DBRMLIB’) PKLIST( *.s_SH.*, *.s_CM); Plan based SQL No versioning allowed Plan & Package based SQL Versioning only allowed for packaged based dbrm Packaged based SQL Versioning allowed
Keep your explain data current and accurate. Compare explain output from one software release to the next, looking for changes. See notes for clean up tips on the PLAN_TABLE.
If output from previous explains is available, use Optimization Hints to return to the previous access path if the REBIND drastically changed your access path in a harmful manner. Try to do this at the statement level vs. DBRM level.
Only use optimization hints if beneficial ( use should be limited ). Previous explain output and performance data will help you make this decision. Have you opened ETRs on your current access paths using hints?
Stats Advisor and Runstats with COLGROUP functionality will slay the overuse of opthints.
Add new V8 columns, update columns to match V8 lengths. Or unload/load into new V8 PLAN_TABLE, DSN_STATEMNT_TABLE to preserve your performance data and optimization hints. Nine columns change to VARCHAR(128) and seven columns were added to increase the PLAN_TABLE to 58 columns. See notes for column details.
Preserve your explain table data prior to DB2 migrations.
V7.PLAN_TABLE, V8CM_PLAN_TABLE, V8NFM.PLAN_TABLE
Ability to EXPLAIN from statements in the dynamic statement cache once in V8 NFM.
V8 supports ALIASes in the OWNER key word of bind and rebind. This is helpful for directing explain output to a common set of explain tables.
REOPTIMIZATION Evaluate data values and access path at runtime
When two or more access paths are needed based on the content of the :HostVariables
Allow the optimizer to make a different decision based on knowing the data values of the filtering predicates
When the optimizer’s estimate of qualifying rows does not yield the desired access path DB2 would select if it knew the content of the host variables prior to execution
Limit parts for partition scans and influence join sequence
The REOPT code path does not invoke A utomatic Q uery R ewrite, AQR is currently only available for dynamic read-only SQL
Available for static and dynamic SQL
Carry over of REOPT(VARS) from V7
Available for dynamic SQL
How do you seed the correct values in the :HostVariables for the first execution? This will set the access path tied to the SQL statement in the dynamic statement cache. Don’t forget about resetting due to actions like IPL, runstats report no update none.
Static SQL | package level granularity
Consider isolating and consolidating your reopt statements to a few static packages
Document which objects the reoptimized access path uses and be aware of other access paths needing the same objects
Plan based SQL can also have reoptimization, although the best practice is to implement at the lower package granularity
Dynamic SQL | statement level granularity allowing smaller scope and scale of impact
Did reoptimization benefit the SQL statement?
SQL object monitoring what got touched for this access path (Detector/Subsystem Analyzer, Query Monitor, Apptune, etc.)
Caveats with REOPT 13.16.08 STC13637 DSNI031I -DBP2 DSNILKES - LOCK ESCALATION HAS OCCURRED FOR RESOURCE NAME = DSNDB06.SYSPLAN LOCK STATE = X PLAN NAME : PACKAGE NAME = DSNBIND : N/A COLLECTION-ID = N/A STATEMENT NUMBER = N/A CORRELATION-ID = CGARPOST CONNECTION-ID = BATCH LUW-ID = USARFW01.LUDSNP2.C0079D34792B THREAD-INFO = STCUSER : * 13.20.36 STC13736 DSNT501I -DBP1 DSNILMCL RESOURCE UNAVAILABLE CORRELATION-ID= POOLEQ030135 CONNECTION-ID= CICSCOM2 LUW-ID=USARFW01.LUDSNP.C0079DA6108D=0 REASON 00C9008E TYPE 00000200 NAME DSNDB06 .SYSPLAN 13.20.36 STC13736 DSNT501I -DBP1 DSNILMCL RESOURCE UNAVAILABLE CORRELATION-ID= IV710DO CONNECTION-ID= BATCH LUW-ID=USARFW01.LUDSNP.C0079D47A4A2=0 REASON 00C9008E TYPE 00000200 NAME DSNDB06 .SYSPLAN 13.20.36 STC13736 DSNT501I -DBP1 DSNILMCL RESOURCE UNAVAILABLE CORRELATION-ID= POOLIV780100 CONNECTION-ID= CICSWEBB LUW-ID=USARFW01.LUDSNP.C0079D9E0E81=0 REASON 00C9008E TYPE 00000200 NAME DSNDB06 .SYSPLAN 13.20.48 CGARPOST BIND Completed , RC=0 13.21.32 CICS Transaction RQ06 enabled 13.05.43 STC13637 DSNT375I -DBP2 PLAN= DSNBIND WITH CORRELATION-ID= CGARPOST CONNECTION-ID=BATCH LUW-ID=USARFW01.LUDSNP2.C0079AC395F7=15307 THREAD-INFO=STCUSER:*:*:* IS DEADLOCKED WITH PLAN=RQ06SGL WITH CORRELATION-ID=ENTRRQ060037 CONNECTION-ID=CICSCOM2 LUW-ID=USARFW01.LUDSNP.C0079A5B8C70=122665 THREAD-INFO=CICSUSER:*:*:* ON MEMBER DBP1 13.05.43 STC13637 DSNT501I -DBP2 DSNILMCL RESOURCE UNAVAILABLE CORRELATION-ID=CGARPOST CONNECTION-ID=BATCH LUW-ID=USARFW01.LUDSNP2.C0079AC395F7=0 REASON 00C90088 TYPE 00000302 NAME DSNDB06 .SYSDBASE.X'0007B3' 13.08.11 CICS Transaction RQ06 is disabled tied to PLAN RQ06SGL using REOPT 13.08.13 CGARPOST BIND Begins BIND 177 DBRMs SYSPLAN SYSDBASE DSNDB06 Executing a REOPT TRAN REOPT Contention SYSPLAN Contention DISABLE Plan EDMPOOL Load Failure ENABLE BIND RC=0 CICS TranID Outage SYSPLAN Outages ARPOSTQ Outage 15 minutes, 5 seconds RQ06 Outage 13 minutes, 21 seconds Other Plan Outages 4 minutes, 40 seconds
Sounds good! Difficult to implement and maintain. Use for temporary relief of performance degradation. Solve the root cause, do not rely on hints as part of the performance strategy.
DSNZPARM change to activate.
Programmers should add QUERYNO to their code.
Limit scope and use meaningful names.
Hint only those statements needing it, not all statements or query blocks tied to the package.
How are you going to name and manage your opthints? Consider hint names tied to your DB2 maintenance release to better track and resolve issues tied to DB2 code releases. With V8, the hint name changed from CHAR(8) to VARCHAR(128).
After code has been bound with explain yes, need to update plan_table rows to add a OPTHINT name (see next slide for sequence).
To return to the good access path previously established, rebind the package with OPTHINT(‘V8RSU0712_H1’).
Verify hints are in use!
HINT_USED column of PLAN_TABLE
Query the special register: CURRENT OPTIMIZATION HINT
A Day in the Life of an Optimization Hint UPDATE PROD.PLAN_TABLE SET OPTHINT = ‘V8RSU0702_H1’ WHERE PROGNAME = ‘LIKESRCH’ AND VERSION = ‘2006-10-26-23.14.02.002004 ’ AND COLLID = ‘CS_MATCH’ AND QUERYNO IN ( 7448 ); PROD. DX1HINT QUERYNO, APPLNAME, PROGNAME, VERSION, COLLID, OPTHINT DBUSXPTB.USTSPLTB RScan Index Access Is this Index on your PLAN_TABLE? REBIND PACKAGE(CS_MATCH) MEMBER(LIKESRCH) VERSION(‘2007-02-28-13.22.01.003007’) OPTHINT(‘V8RSU0702_H1’) Once the hint is statically bound, the optimizer does not have to access the PLAN_TABLE to retrieve the access path which is hinted, it can just run. Yes No 1 3 2 1 2
Package List - the order in which you specify packages. The order can affect performance to a slight degree. Searching for a package involves searching the DB2 directory.
*.collection.* in PKLIST - order collections in the PKLIST by the collections in which DB2 is most likely to find the packages first. Wildcarding everything except the collection can significantly reduce or eliminate the number of plan binds needed.
location.collection.package.version - full naming convention for a package. Specifying beyond collection in your PKLIST is overkill, (with a few exceptions).
Use PKLIST strategy for ease of fallback when migrating to V8. See following slide for details on “free package fallback”.
Package based SQL
Bind a Plan Once and be DONE BIND(OSHLH) PKLIST(*.P_SH_LINEHAUL.*, *.P_SH.*, *.P_CM.* ) BIND(SCUMAINT) PKLIST(*.P_CU.*, *.P_SH.ML01A11, *.P_SH.ML01A24, *.P_CM.* ) BIND(BSHLH) PKLIST(*.P_SH_LINEHAUL.*, *.P_CM.* ) COLLID (collection name) has increased from CHAR(18) to VARCHAR(128) with V8.
Plan Naming Options -Less Administration -More Thread Reuse -Less Granularity in Ownership & Security -Greater Control -Easier Identification of Packages Running -More Granularity in Ownership & Security
One per Environment (Batch, OLTP, STC)
One per Data Focus Area (DFA) | Business Area
One per DFA | Business Area | Environment
One per Application
One per Application | Environment
One per Program
More than one option may be needed to meet your organization’s needs. Be consistent with your standard.
Naming Standards with Enforcement & Consistency
Prepare time not incurred during runtime execution of static SQL.
Ability to lock in access paths and have performance fallback with package versioning.
Access path management is externalized into the explain tables as part of the implementation procedures, including flagging of poor access paths (“DBRM review”) and comparing to prior/future access paths (“DB130 access path compare process”). What if analysis with home grown “programC” interface allows access path evaluation for all static SQL statements tied to a program prior to the program launching into production.
Standard accounting class data available for static SQL. Accounting trace classes (1,2,3,7,8,10).
Additional dynamic SQL memory caching requirements in DBM1 not needed for static SQL.
Static security model, access to the application vs. the data
Supports individual RACF id authentication in addition to application/process id authentication.
Supports role based authority application orientation.
Static statements are retrievable from both the source code and DB2’s catalog, providing accountability back to the individual SQL statement/query number.
DSN6SPRM, ABIND=YES - automatic rebind handles these longname packages
SMF data - account data captures longname package execution, etc.
SPT01, SYSPACKAGE, etc - Directory and Catalog store, retrieval, execution all work
DROP PACKAGE works for longname packages
Visual Explain Version 8, V1.0.10 finds and explains packages using longnames
The following z/OS based/sourced code paths do not support longname packages:
bind package copy (to promote sqlj packages from one subsystem to another). In addition to not supporting greater than 8 character package names, bind/copy also fails to populate the SYSIBM.SYSPACKAGE.REMARKS column of syspackage. db2sqljcustomize and db2sqljbind populate the remarks section using the comment on package to push the sqljprofile name into the remarks column. The package name can be wildcarded as a work around (REBIND PACKAGE HRO_DBP1.SH. * . LBOrQGBs).
FREE PACKAGE does not work for longname packages, need to use drop package syntax
The following is no longer missing from the SQLJ JCC side:
DB2Binder sqlj package “rebind” ability (having to checkout the customized .ser from your source code repository to do a bind, rather than having a native client rebind support is not a good solution. IBM delivered rebind with DB2Binder API and DB2 9 FP3 of DB2 connect, which is compatible with DB2 V8.
Comment on package, bindagent authority should suffice (IBM fixed this)
Related ETR’s open:
35087,370,000 - bind/copy package longname support (requesting IBM to support DSN commands for long name packages).
The following occurs when a table is dropped that a package depends on:
Prior to the drop, the package is both valid and operative. VALID=Y, OPERATIVE=Y
After the drop, the package is invalid and operative. VALID=N, OPERATIVE=Y
Using autobind (dsnzparm) at next execution, the package is marked invalid and inoperative. VALID=N, OPERATIVE=N. Also applies to an explicit bind.
The table has to be created or the source code must be changed to correct the problem. BINDs (not REBINDs) will pick up the source code changes.
Online schema changes will invalidate packages and flush the dynamic SQL statement cache for the altered object(s).
Package invalidator command (see notes for details).
Contoken Query SELECT COLLID AS COLLECTION, NAME AS PACKAGE, HEX(CONTOKEN) AS DBRM_TOKEN, SUBSTRING(HEX(CONTOKEN),9,8) || SUBSTRING(HEX(CONTOKEN),1,8) AS LOADLIB_TOKEN, VERSION, PDSNAME FROM SYSIBM.SYSPACKAGE WHERE A.NAME = ‘ML01A24’ ORDER BY NAME, COLLID, VERSION WITH UR; -------------------------------------------OUTPUT------------------------------------------------- COLLECTION PACKAGE DBRM_TOKEN LOADLIB_TOKEN P_SH ML01A24 15D1906116E27DD8 16E27DD815D19061 P_SH ML01A24 15D1906116EF8EC8 16EF8EC815D19061 -805 | package -818 | plan
PKLIST functionality for packages executed without a plan, allows collection lists to be searched.
No PKLIST associated to DISTSERV (for remote access via DDF only packages executed on remote server), package path allows us to cross the server one time and resolve package collection lists at the server.
Very useful for applications accessing stored procedure packages from a wide variety of business areas (schemas).
Increases stored procedure nesting flexibility.
User defined functions containing multiple programs with multiple schemas in use, current path can be set to current package path.
Easily implement user selectable isolation level logic.
Enables more flexibility with managing shared SQLJ packages.
Which collection will a SP use to find the package? 1) Was coll_id denoted on the Create Procedure statement? 2) Was the current package path special register set? 4) Use PKLIST collections’ of calling program NO NO Yes Yes Use SP’s catalog entry Use collections specified by SET CURRENT PACKAGE PATH statement 3) Was the current packageset special register set? NO Yes Use collection specified by SET CURRENT PACKAGESET statement
Stored Procedures & PACKAGE PATH BEGIN OUTFITTER SCHEDULER :in1 = ‘ELK’ :in2 = ‘HORSE BACK’ :in3 = ‘MOUNTAINS’ :in4 = ‘2 HORSES’ :HUNTER = ‘JACQUE PASQUINEL’ :SP_PKLIST = “HUNT_TRIPS”, “HORSE_STOCK”, “REGULATIONS” SET CURRENT PACKAGE PATH = :SP_PKLIST CALL HNTGUIDE ( in1, in2, in3, in4, tripID) CHECK GET SQLCODE-ROUTINE /*Populate HUNT_TABLE */ SELECT OUTFITTER_NAME INTO :OUTFITTER FROM FINAL TABLE (INSERT INTO HUNT_TABLE (OUTFITTER_NAME, HUNTER_NAME, TRIP_ID) VALUES (:OUTFITTER, :HUNTER, :TRIPID) CHECK GET DIAGNOSTICS-ROUTINE /* Multirow Fetch to populate hunting party array */ DECLARE HUNT_PARTY CURSOR WITH ROWSET POSITIONING FOR SELECT HUNTER, HUNTER_DOB, HUNTER_EXPERIENCE FROM HUNT_TABLE WHERE TRIPID = :TRIPID; FETCH NEXT ROWSET FROM HUNT_PARTY FOR 10 ROWS INTO :ARRARY_HUNTER, :ARRARY_DOB, :ARRAY_EXPERIENCE; CHECK SQLCODE-ROUTINE EXIT OUTFITTER SCHEDULER … PRGMHUNT HUNT_TRIPS.HNTGUIDE WHEN(:in2) = HORSE BACK CALL HORSE (in4,horse_resID) SET :TRIP_ID = :horse_resID WHEN(:in2) = ATV CALL REGSATV(in2, atv_resID) SET :TRIP_ID = :atv_resID WITH RETURN HORSE_STOCK.HORSE Reserve :in4 HORSES UPDATE HORSE_TABLE SET :horse_resID = ‘HH-E-M-001’ WITH RETURN REGULATIONS.REGSATV Validate :in2 SET :atv_resID = ‘not valid’ WITH RETURN WLM SPAS OUTFITTER_NAME defined as NOT NULL WITH DEFAULT “SELF GUIDED HUNT”
BIND PLAN(PLAN_NAME) PKLIST(list of collections or individual DBRMs) RODF#### BIND PACKAGE(collection name) MEMBER(DBRM aka package / program name) plan *.RO_DF_##########.* .* *.collection.* *.RO_DF_##########.* PC###### program/package ROAR *.RO_AR.*, ROSH *.RO_SH.*, *.RO_PR_HR_TC.*, *.RO_CM.* *.RO_AR.* CV200805 CV000086 CV000067 *.RO_PR_HR_TC.* TC000925 TC000928 packages bound to a collection packages bound to a collection Plan bound to three collections *.collection.* *.RO_CM.* Plan bound to two collections
The execute privilege allows the authid with that privilege to include the package in the PKLIST of the plan bind.
Packages are normally not accessed without a plan. Triggers, Stored Procedures and DRDA connections (SQLJ packages) can access packages directly. For these packages, DB2 checks the execute privilege at run time for packages with no plan ties.
For traditional batch and CICS programs, the plan is what is run. The execute privilege on the plan denotes which authid can run the plan, with the SQL found inside the package.
Based on DB2 install parameter. Either BINDADD or BIND. BINDADD is more restrictive and is required by the user to add(bind) a package and new versions. BIND is required by the user to add new versions of a package, not to create the first occurrence of a package. DSNZPARM BINDNV.
BIND, REBIND, COPY, EXECUTE granted to authid’s. Either primary or secondary. Use secondary.
DROP - the owner of the package and SYSCTRL. DROP can be useful for freeing mixed case and lower case SQLJ packages.
DROP PACKAGE “NULLID”.”BenefitEnrollements”
FREE - the owner of the package, PACKADM and SYSCTRL.
Execute privilege granted to your authid for the plan
Who can include packages in the PKLIST?
SYSADM, PACKADM on the collection
Ownership of the package
Execute privilege granted to your authid for the package
Catalog and System Tables Database Services Component DB2 Catalog (DSNDB06) DB2 Directory (DSNDB01) Internal Table Information Backup Information DB2 Object Definitions Plan Information Package Information Authorization Permissions RI Relationships Stored Procedure Information Database Information (DBD01) Log Information (SYSLGNRX) Plan Information (SCT02) Package Information (SPT01) Utility Information (SYSUTILX) See Appendix F – DB2 Catalog Tables of the SQL Reference for details on catalog table changes associated to V8. V8 V7 DSNDB06 138 85 22 119 82 20 IX TB TS
LIBRARY(pds name) - library containing the DBRMs generated from the precompile
MEMBER(dbrm name) - package name
OWNER(authid) - owner of the package, explicit rights
QUALIFIER(string) - identifies what variable to use for unqualified names in the package (tables, views, etc.)
ENABLE/DISABLE(specify or *) - specify environments where the package can execute (a must for online transactions where access is usually granted to PUBLIC)
VALIDATE(bind/run) - specify BIND
DYNAMICRULES(RUN) - understand the affect of BIND, particularly in relationship to the owner of the package and the authid’s system privileges. Having SYSADM as the owner in conjunction with DYNAMICRULES(BIND) creates a security exposure for dynamic SQL.
DBPROTCOL(DRDA) - do not use private (zIIP workload)
Prior to V8, data sharing systems were recommended to use RELEASE(DEALLOCATE) to reduce tablespace lock activity. V8 changes increased performance of plans and packages bound with RELEASE(COMMIT) by reducing global and false contention for pageset / partition locks.
Good for batch flows with frequent commits. Let batch work take advantage of sequential detection and list prefetch.
Use for a small percentage of protected on-line threads (20%). Persistent threads (those that remain across commits) make this choice more attractive. Determine which on-line threads/packages should use deallocate.
Eliminates traffic to the coupling facility lock structure. Good for data sharing environments and high performance oriented applications.
Thread reuse needs to occur - MONITOR this!
An increase in the EDM Pool size is needed due to packages being held longer in the pool. This can create issues during performance rebinds.
Cursor Stability (CS) is the most commonly used option. Locks with the movement of the cursor; only locks qualified data and dirty data if updateable. Releases U locks when DB2 moves off the page or changes to an S or X lock. Acquires and releases Shared locks in the same fashion except when CURRENTDATA(NO) is specified, then S locks are not acquired.
Repeatable Read (RR) reads the data multiple times within the same unit of work with the exact same results. Locks entire page and keeps them locked until commit. Cursors using WITH HOLD retain one page lock for positioning after commit. Resource intensive option.
Read Stability (RS) is very similar to repeatable read with the exception of when the pages are released (similar to a combination between CS and RR). If the page contains no qualifying rows, it will release the lock when it moves off the page. If the page had qualifying rows, it is not released until commit. Data can be reread in the same unit of work with the same result (including additional rows that may now qualify).
Default is CURRENTDATA(YES). This is resource intensive. CURRENTDATA(YES) results in lock avoidance on rows that do not qualify the search criteria. CURRENTDATA(NO) may result in lock avoidance on rows that qualified.
ISOLATION(CS) CURRENTDATA(NO) will invoke lock avoidance. If batch jobs are committing properly, DB2 can verify qualifying rows have been committed and will get the page without acquiring page locks. Timestamp processes ensure data integrity!
Most applications tolerate lock avoidance, meaning they do not require the data on the page to remain unchanged while the cursor is on that page.
CURRENTDATA(YES) ensures data under read-only cursors is stable. DB2 ensures data under updateable cursors is stable regardless of currentdata parameter.
Use CURRENTDATA(NO) and avoid ambiguous cursors! Specify FOR READ ONLY or FOR UPDATE OF on your cursors.
Make every effort to use CURRENTDATA(NO).
See currentdata query for details on DEFERPREP (sysibm.syspackage) and EXPREDICATE (sysibm.sysplan).
Currentdata Query SELECT COUNT(*), 'C-CURRENTDATA-YES-AMBIGUOUS-CURSOR' FROM SYSIBM.SYSPACKAGE WHERE DEFERPREP IN ('C') UNION ALL SELECT COUNT(*), 'PRE-CURRENTDATA' FROM SYSIBM.SYSPACKAGE WHERE DEFERPREP IN (' ') UNION ALL SELECT COUNT(*), 'B-CURRENTDATA-NO-AMBIGUOUS-CURSOR' FROM SYSIBM.SYSPACKAGE WHERE DEFERPREP IN ('B') UNION ALL SELECT COUNT(*), 'A-CURRENTDATA-YES-ALL-CURSOR' FROM SYSIBM.SYSPACKAGE WHERE DEFERPREP IN ('A') WITH UR;
Automate SQL Scripts //*-- BUILD THE REBIND FOR THE DISABLE //BLD1RBND EXEC PGM=IKJEFT01,DYNAMNBR=100, // REGION=4M //SYSTSPRT DD SYSOUT=* //SYSTSIN DD * DSN SYSTEM(DSN) RUN PROGRAM(DSNTEP2) PLAN(DSNTEP2) PARMS('/ALIGN(LHS)') - LIB('SYS2.DB2.PROD.RUNLIB.LOAD') //SYSIN DD DSN=AFDB.OBSOLETE.PGMS(DISABLE1),DISP=SHR //SYSPRINT DD DSN= AFDB.OBSOLETE.PGMS.DISABLE1.SPUFIOUT , // DISP=(NEW,CATLG,CATLG),UNIT=SYSDA,SPACE=(CYL,(10,5),RLSE) //SYSUDUMP DD SYSOUT=* //*-- SORT OUT ALL BUT REBIND FROM DSNTEP2 OUTPUT //SRT1RBND EXEC PGM=SORT,REGION=8M //SYSOUT DD SYSOUT=* //SORTIN DD DSN= AFDB.OBSOLETE.PGMS.DISABLE1.SPUFIOUT ,DISP=SHR //SORTOUT DD DSN= AFDB.OBSOLETE.PGMS.DISABLE1 , // DISP=(NEW,CATLG,CATLG),UNIT=SYSDA,SPACE=(CYL,(10,50),RLSE) //SYSIN DD * SORT FIELDS=COPY OPTION VLSHRT OUTFIL OUTREC=(11,80,TRAN=ALTSEQ),VTOF,VLFILL=X'40' ALTSEQ CODE=(4F40) INCLUDE COND=(12,12,CH,EQ,C'REBIND PACKA',OR, 12,12,CH,EQ,C'REBIND PLAN(',OR, 12,12,CH,EQ,C'DISABLE(BATC',OR, 12,12,CH,EQ,C'EXPLAIN(YES)') /*