Oracle Data Base:

1. Oracle Database 10g: g stands for Grid. and Grid Computing .

Oracle Database 10g provides a fairly easy upgrade path for users of older Oracle Database versions. The following versions can directly be upgraded to Oracle Database 10g:

Automatic storage management (ASM) : 10 g Feature:

Real Application Clusters ( RAC):

Grids (G):

The gcs_server_processes Parameter: 

Administration:

Oracle System Global Area (SGA):

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