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hebo2005 2011年04月19日
分享贴,关于上次提问的有关DBLINK的问题
原贴
http://topic.csdn.net/u/20110308/21/f6b2ea56-68a7-4ad4-b93e-54e9fb014bcb.html
困扰了一个月,后经一个朋友查到原因,确认是个BUG,和大家分享下,一周后结贴。

Bug 8432019 - Wrong Results With Full Outer Join, Database Link and Merged Inline View [ID 8432019.8]
________________________________________
Modified 01-SEP-2010 Type PATCH Status PUBLISHED

Bug 8432019 Wrong Results With Full Outer Join, Database Link and Merged Inline View
This note gives a brief overview bug 8432019.
The content was last updated on: 01-SEP-2010
Click here for details of each of the sections below.
Affects:
Product (Component) Oracle Server (Rdbms)
Range of versions believed to be affected Versions >= 9 but BELOW 12.1
Versions confirmed as being affected • 11.2.0.1
• 11.1.0.7
• 10.2.0.4

Platforms affected Generic (all / most platforms affected)
Fixed:
This issue is fixed in • 12.1 (Future Release)
• 11.2.0.2 (Server Patch Set)

Symptoms: Related To:
• Wrong Results
• Database Link / Distributed
• ANSI Joins

Description
A full outer join query with inline view executing remotely gets wrong result
missing rows when the inline view is merged.

Rediscovery Notes:
If a full outer join query is executed without native full outer join over a
database link and produces wrong results (missing rows) and the join involves
an inline view which is being merged then you may have encountered this bug.

Workaround
Use native full outer join or prevent the inline view from merging
by adding a NO_MERGE hint.


Please note: The above is a summary description only. Actual symptoms can vary. Matching to any symptoms here does not confirm that you are encountering this problem. Always consult with Oracle Support for advice.
References
Bug:8432019 (This link will only work for PUBLISHED bugs)
Note:245840.1 Information on the sections in this article

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