Difference Between <SQL ISVALID> And <SQL SELECT 1 FROM DUAL> When Datasource Is Testing DB Connection
Last updated on FEBRUARY 27, 2017
Applies to:Oracle WebLogic Server - Version 18.104.22.168.0 and later
Information in this document applies to any platform.
To test database connection, [SQL SELECT 1 FROM DUAL] is used before WLS 12.1.2 and [SQL ISVALID] is used from WLS 12.1.3.
What is the difference between them?
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