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一、描述
Parameter | Description |
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retention | New retention time (in minutes). The specified value must be in the range of MIN_RETENTION (1 day) to MAX_RETENTION (100 years). If ZERO is specified, snapshots will be retained forever. A large system-defined value will be used as the retention setting. If NULL is specified, the old value for retention is preserved. NOTE: The retention setting must be greater than or equal to the window size of the ‘SYSTEM_MOVING_WINDOW’ baseline. If the retention needs to be less than the window size, the MODIFY_BASELINE_WINDOW_SIZE Procedure can be used to adjust the window size. |
interval | New interval setting between each snapshot, in units of minutes. The specified value must be in the range MIN_INTERVAL (10 minutes) to MAX_INTERVAL (1 year). If ZERO is specified, automatic and manual snapshots will be disabled. A large system-defined value will be used as the retention setting. If NULL is specified, the current value is preserved. |
topnsql |
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dbid | Database identifier in AWR for which to modify the snapshot settings. If NULL is specified, the local dbid will be used. Defaults to NULL. |
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