How to fix the Oracle error ORA-30009: Not enough memory for string operation?

In this post, you’ll learn more about the Oracle ErrorORA-30009: Not enough memory for string operation with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30009: Not enough memory for string operation

Reason for the Error ORA-30009: Not enough memory for string operation

The memory size was not sufficient to process all the levels of the hierarchy specified by the query.

How to fix the Error ORA-30009: Not enough memory for string operation ?

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

In WORKAREA_SIZE_POLICY=AUTO mode, set PGA_AGGREGATE_TARGET to a reasonably larger value. Or, in WORKAREA_SIZE_POLICY=MANUAL mode, set SORT_AREA_SIZE to a reasonably larger value.