How to fix the error ORA-00840: PGA_AGGREGATE_TARGET cannot be modified to the specified value?

In this post, you’ll learn more about the Oracle ErrorORA-00840: PGA_AGGREGATE_TARGET cannot be modified to the specified value with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-00840: PGA_AGGREGATE_TARGET cannot be modified to the specified value

Reason for the Error ORA-00840: PGA_AGGREGATE_TARGET cannot be modified to the specified value

The specified value of PGA_AGGREGATE_TARGET was not compatible with current settings of SGA_TARGET and MEMORY_TARGET/MEMORY_MAX_TARGET.

How to fix the Error ORA-00840: PGA_AGGREGATE_TARGET cannot be modified to the specified value ?

You can fix this error in Oracle by following the below steps

Set PGA_AGGREGATE_TARGET to be no more than the difference of MEMORY_TARGET/MEMORY_MAX_TARGET and SGA_TARGET.