PGA_AGGREGATE_TARGET is an Oracle server parameter that specifies the target aggregate PGA memory available to all server processes attached to the instance.   Some of the properties of the PGA_AGGREGATE_TARGET parameter are given below:   •Parameter type: Big integer •Syntax: PGA_AGGREGATE_TARGET = integer [K M G]•Default value: 20% of SGA size or 10MB, whichever is greater •Modifiable: … Read more