Slow Performance When Querying Binary XMLType Table On A Database With Database Character Set Other Than AL32UTF8
(Doc ID 1622898.1)
Last updated on FEBRUARY 08, 2017
Applies to:
Oracle Database - Standard Edition - Version 11.2.0.3 to 12.1.0.1 [Release 11.2 to 12.1] Oracle Database - Enterprise Edition - Version 11.2.0.3 to 12.1.0.1 [Release 11.2 to 12.1] Information in this document applies to any platform.
Symptoms
running a query on a binary xmltable is slow when database character set is different from AL32UTF8 (for example UTF8).
running the same query on a database with AL32UTF8 character set, the query is much faster
Cause
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