Answer Posted / swarna
PGA is a program global area (or) process global area.The configuration of PGA depends on server configuration. Memory is allocated to the PGA when the server process starts and outside of the instance. PGA has two server configurations.
1.dedicated server configuration
2.Shared server configuration.
For dedicated server configuration, PGA holds the stackspace and session information.
For Shared server configuration PGA holds the stackspace and session infomation is within the SGA.
Stackspace: Stackspace is the area which is used to hold the values of variables, arrays so on....
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