High Memory Allocation When Using A Temp CLOB In PLSQL

(Doc ID 2361937.1)

Last updated on FEBRUARY 22, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

On : 12.2.0.1 version, RDBMS

High PGA memory allocation when using a temp CLOB in PLSQL.
Below PL/SQL illustrates the situation: full_message is a temp CLOB, and taking into account the number of iterations (50000 times in this case), it can use up to 445MB PGA.

 

Changes

 No Changes performed ,expected behavior .

Cause

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