delete archivelog all completed before 'sysdate+90';这样写才对
released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=44 device type=DISK
List of Archived Log Copies for database with db_unique_name ORA10
=====================================================================
Key Thrd Seq S Low Time
------- ---- ------- - ---------
1 1 5 A 05-JUN-12
Name: /u01/app/oracle/flash_recovery_area/ORA10/archivelog/2012_06_05/o1_mf_1_5_7wtxt1tf_.arc
Do you really want to delete the above objects (enter YES or NO)?