ORACLE SGA
Redo Log Buffer
Holds redo information generated from
DML until it is written to disk by LGWR.
Size = LOG_BUFFER
Buffer Cache
Data from disk, stored in memory for
fast access and quick changes.
Size = DB_BLOCK_SIZE * DB_BLOCK_BUFFERS
Large Pool
(OPTIONAL)
Should be used in conjunction with:
MTS
Oracle*XA
RMAN
Parallel Execution
Size = LARGE_POOL_SIZE
Java Pool
(OPTIONAL)
Holds the classes and libraries.
Size = JAVA_POOL_SIZE
Shared Pool
Library cache
Dictionary cache
User Global Area (UGA)