How to fix the Oracle error ORA-38622: Decision Tree not enough memory, requires at least stringKB?

In this post, you’ll learn more about the Oracle ErrorORA-38622: Decision Tree not enough memory, requires at least stringKB with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-38622: Decision Tree not enough memory, requires at least stringKB

Reason for the Error ORA-38622: Decision Tree not enough memory, requires at least stringKB

The memory size did not satisfy the minimum memory requirement for decision tree building.

How to fix the Error ORA-38622: Decision Tree not enough memory, requires at least stringKB ?

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

In workarea_size_policy=’manual’ mode, set _dtree_area_size to a reasonably larger value. Or, In workarea_size_policy=’auto’ mode, please raise pga_aggregate_target to a reasonably larger value.