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ORA-04036: PGA memory used by the instance
I have Installed 19c (22.214.171.124)windows on my test environment, for bigger query it is not giving output.. keeps on running and PGA keeps on increasing. PGA_AGGREGATE_LIMIT was 7G. Tried to increase PGA_AGGREGATE_LIMIT to 12G, then it crosses 12g & sessions throws error.
Then tried to set PGA_AGGREGATE_LIMIT=0, then it utilizes full memory & again killed the session with "instance exceeds pga_aggrate_limit native error ,ORA-04036: PGA memory used by the instance".
Oracle version :126.96.36.199
Server- Windows 2019, memory 16G
Earlier Installed 19.3 and to fix the bugs upgraded to 19.12 based on Bug 27933036 - pga memory leak (Doc ID 27933036.8). Still the issue is not getting fixed.
Anyone can help on this ?