RSRV? WHAT DOES THIS DO

Hi All,

WHAT ARE THESE PROGRAMS AND T-CODES FOR

RSDMD_CHECKPRG_ALL

RSDMD_SID_P_Q_REPAIR

RSRV

KINDLY EXPLAIN THE TYPE OF ERROR FOR WHICH THEY ARE USED AND WHY THEY OCCUR

AND HOW THESE PROGRAMS ACTUALLY DO TO RECTIFY THEM.

THANKS

HARISH