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Problem IC68642
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Status: Closed |
CALL OF A PROCEDURE OR REFERENCE TO A FUNCTION DEFINED WITHIN A MODULE WILL CAUSE A RECOMPILE RATHER THAN A PACKAGE CACHE HIT. |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
If a user has been granted execute on a module, each CALL of a
procedure within the module or reference to a FUNCTION within
the module will
cause a recompile of the CALL statement,
Aside from the extra compiles this causes, this may result in a
series of valid entries in the package cache (one per statement
with a MODULE procedure or funtion reference), and eventually
searching these entries can cause severe performance problems |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* users of MODULES or SQL/PL PACKAGES *
****************************************************************
* PROBLEM DESCRIPTION: *
* Performance impacted when module procedures/functions are *
* used in dynamic SQL. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to V97 fixpack 3 *
**************************************************************** |
| Local Fix: |
Granting the user EXECUTE on procedures and functions while
unnecessary for authorization can avoid the extra compiles.
Since execute privilege cannot be granted directly on a
procedure or function within a module, this would have to be
done using the wildcard specification ("GRANT EXECUTE ON
PROCEDURE/FUNCTION <SCHEMA>.* to ....") |
| available fix packs: |
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
Fixed in v97 fixpack 3 |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC70184
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 13.05.2010
23.09.2010
23.09.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP3
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.3
|
 |
| 9.7.0.3
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