| Oracle® Database Backup and Recovery Reference 11g Release 2 (11.2) Part Number E10643-05  | 
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Use the completedTimeSpec subclause to specify when a backup or copy completed.
All date strings must be either:
Formatted according to the Global Technology date format specification currently in effect.
Created by a SQL expression that returns a DATE value, as in the following examples:
'SYSDATE-30'
TO_DATE('09/30/2000 08:00:00','MM/DD/YY HH24:MI:SS')
The TO_DATE function specifies dates independently of the current Global Technology environment variable settings.

| Syntax Element | Description | 
|---|---|
AFTER 'date_string' | 
Specifies the time after which the backup was completed (see Example 4-7). | 
BEFORE 'date_string' | 
Specifies the time before which the backup was completed (see Example 4-9). | 
BETWEEN 'date_string'AND 'date_string' | 
Specifies a time range during which the backup was completed (see Example 4-8). Note that BETWEEN 'date1' AND 'date2' is exactly equivalent to AFTER 'date1' BEFORE 'date2'. | 
Example 4-7 Crosschecking Backups Within a Time Range
This example crosschecks the backup sets of the database made last month:
CROSSCHECK BACKUP OF DATABASE COMPLETED BETWEEN 'SYSDATE-62' AND 'SYSDATE-31';
Example 4-8 Deleting Expired Backups
This example deletes expired backups of archived logs made in the last two weeks:
DELETE EXPIRED BACKUP OF ARCHIVELOG ALL COMPLETED AFTER 'SYSDATE-14';
This example lists image copies of datafile /disk1/oradata/prod/users01.dbf made before March 9, 2007:
RMAN> LIST COPY OF DATAFILE '/disk1/oradata/prod/users01.dbf' COMPLETED BEFORE '9-MAR-07';
List of Datafile Copies
=======================
Key     File S Completion Time Ckp SCN    Ckp Time
------- ---- - --------------- ---------- ---------------
3794    28   A 06-MAR-07       1010097    06-MAR-07
        Name: /disk1/oradata/prod/users01.dbf
3793    28   A 06-MAR-07       1009950    06-MAR-07
        Name: /disk2/PROD/datafile/o1_mf_users_2yvg4v6o_.dbf
        Tag: TAG20070306T105314