DBMS_SQLHASH Does Not Produce The Same Value In All Cases
Last updated on FEBRUARY 20, 2018
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 to 220.127.116.11 [Release 11.2 to 12.1]
Information in this document applies to any platform.
DBMS_SQLHASH does not always return the same value for the same result set. It appears that the hash value can depend on the access methods, not just the result set.
For example, you may get these results on either Windows or Linux 64-bit 18.104.22.168:
Several factors may contribute to a change in order of results, notably the execution plan.
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