System Global Area

System Global Area
The System Global Area (SGA) is a group of shared memory structures, known as
SGA components, that contain data and control information for one Oracle Database
instance. The SGA is shared by all server and background processes. Examples of data
stored in the SGA include cached data blocks and shared SQL areas
Table 5-2 lists the components of the SGA.
See Also:
■ "Managing Memory" on page 5-12
■ Oracle Database Concepts and Oracle Database Administrator's Guide
for more information about Oracle Database memory architecture
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