新版Oracle 数据库的安装越来越麻烦了,除了要注意PSU补丁外,现在又单独提出了性能补丁。
特此记录,以便日后安装数据库时使用。
Applies to:
Oracle Server - Enterprise Edition - Version: 11.2.0.2 to 11.2.0.3 - Release: 11.2 to 11.2
Oracle Server - Personal Edition - Version: 11.2.0.2 to 11.2.0.3 [Release: 11.2 to 11.2]
Oracle Server - Standard Edition - Version: 11.2.0.2 to 11.2.0.3 [Release: 11.2 to 11.2]
Information in this document applies to any platform.
Purpose
The purpose of this note is to publish some recommended fixes in hopes
of avoiding problems associated with performance and wrong results in
11.2.0.2.x.
Scope and Application
Its important to note that while we try and include important fixes in
the PSUs that are released on a quarterly basis, there are restrictions
as to what can go in to a PSU. One of the restrictions is fixes that may
change execution plans i.e. optimizer layer fixes. The reason for this
is that it reduces the amount of testing required to go from one PSU to
another.
This note concerns itself with highly desirable patches
in 11.2.0.2 that are not included in PSU updates. Most of these issues
are fixed in 11.2.0.3. The exceptions are noted below.
Things to Consider before upgrading to 11.2.0.2.x regarding performance/wrong results
Recommended fixes that are not included in PSUs:
Patch:10259620 Wrong results / ORA-7445 with DESC indexes and OR expansion
Patch:13004894 Wrong results with SQL_TRACE / 10046 (not in 11.2.0.3)
Supersedes the previously recommended
Patch:9776940 Wrong results with function based indexes / ORA-600 [qkeUnreferenceExpr_2] parsing CONTAINS/SCORE
Patch:11719151 SQL Plan Management capture causes slowness
Creates problems when baselines are in use
Patch:9842771 Wrong SREADTIM and MREADTIM statistics in AUX_STATS$
Can cause poor execution plans for entire database
Patch:10269193 Wrong results with outer join and CASE expression optimization
CASE need not to be present
Patch:10623249 High "Latch Free" Waits when Resource Manager is used
Patch:12624639 Merge patch fixing the following two bugs:
Patches specific to Solaris and Veritas:
Patch:10336129 Solaris: Poor IO performance on Veritas for 11.2 compared to 10.2
Patches specific to IBM AIX:
Patch:12596494 Generally Higher CPU Usage in 11.2.0.2 than 10.2.0.4
This fix is extremely important when for queries with hash joins
Fix not included in 11.2.0.3
Patch:12412983 AIX: "asynch descriptor resize" wait not necessary on AIX
- << Patch:13391682>> On 11.2.0.2.3 it is recommended to apply merge of Bug 12412983
and Bug 9829397 NOTE:9829397.8 Excessive CPU and many "asynch descriptor resize" waits for SQL using Async IO
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/6467/viewspace-715635/
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