Oracle Rman Datafile Summary

RMAN> list backup of datafile 1 Summary;


List of Backups
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Key     TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- --------------- ------- ------- ---------- ---
247183  B  F  A SBT_TAPE    11-APR-13       1       1       NO         TAG20133122111T020943