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Oracle® Database Reference
12c Release 1 (12.1)

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DBA_HIST_BASELINE displays information on baselines taken in the system. For each baseline, this view displays the complete time range and whether the baseline is the default baseline.

Column Datatype NULL Description
BASELINE_ID NUMBER   Internal ID for the baseline
BASELINE_NAME VARCHAR2(64)   User-specified name for the baseline
BASELINE_TYPE VARCHAR2(13)   The baseline type, as follows:

STATIC - baselines that are created manually by the user

MOVING WINDOW - baselines that have dynamic start and end snapshot IDs

GENERATED - baselines that are automatically generated by the system, using a template

START_SNAP_ID NUMBER   Start snapshot ID for the baseline
START_SNAP_TIME TIMESTAMP(3)   Time associated with the start snapshot ID
END_SNAP_ID NUMBER   End snapshot ID for the baseline
END_SNAP_TIME TIMESTAMP(3)   Time associated with the end snapshot ID
MOVING_WINDOW_SIZE NUMBER   If BASELINE_TYPE is MOVING WINDOW, this field is the size of the moving window in number of days.

If NULL, then the window size is the value of the AWR retention setting.

CREATION_TIME DATE   Time the baseline was created
EXPIRATION NUMBER   How long to keep the baseline, in number of days. A NULL value means that the baseline will be kept forever.
TEMPLATE_NAME VARCHAR2(64)   Name of the template that created this baseline, if any.
LAST_TIME_COMPUTED DATE   Last time that statistics were computed on the baseline.
CON_ID NUMBER   The ID of the container to which the data pertains. 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