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Exception Handling Behavior With DBMS_LOB.READ() Between 9.2 AND 11G (Doc ID 970516.1)

Last updated on FEBRUARY 23, 2019

Applies to:

PL/SQL - Version to [Release 9.2 to 11.2]
Information in this document applies to any platform.


In PL/SQL, if the type of an IN/OUT or OUT variable isn't _exactly_ the same as the parameter declaration, the output value will be lost if an exception is thrown where a NOCOPY hint is used.

This is causing a behavioral difference with the DBMS_LOB.READ() call across versions.

The following testcase scenario demonstrates the resulting value of "0" where the value is lost depending on the datatype of the variable and the RDBMS version.


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