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Oracle® Database Reference
12c Release 1 (12.1)

E17615-23
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DBA_HIST_SQL_SUMMARY

DBA_HIST_SQL_SUMMARY displays historical SQL summary information.

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
TOTAL_SQL NUMBER NOT NULL Total number of SQL
TOTAL_SQL_MEM NUMBER NOT NULL Total memory usage of SQL
SINGLE_USE_SQL NUMBER NOT NULL Number of single use SQL
SINGLE_USE_SQL_MEM NUMBER NOT NULL Total memory usage of single use SQL
CON_DBID NUMBER   The database ID of the PDB for the sampled session
CON_ID NUMBER   The ID of the container that CON_DBID identifies. Possible values include:
  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data