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Oracle® Database Reference
11g Release 2 (11.2)

E40402-12
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DBA_HIST_SGA_TARGET_ADVICE

DBA_HIST_SGA_TARGET_ADVICE provides historical information about the SGA_TARGET initialization parameter.

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
SGA_SIZE NUMBER NOT NULL Size of the SGA
SGA_SIZE_FACTOR NUMBER NOT NULL Ratio between the SGA_SIZE and the current size of the SGA
ESTD_DB_TIME NUMBER NOT NULL Estimated DB_TIME for this SGA_SIZE
ESTD_PHYSICAL_READS NUMBER   Estimated number of physical reads