2935860 - DB4: Error at RDDEXECU with shortdump DBSQL_SQL_ERROR in the phase XPRAS_AIMMRG

The phase XPRAS_AIMMRG got failed with shortdump DBSQL_SQL_ERROR during the upgrade.

Runtime Errors DBSQL_SQL_ERROR
Except. CX_SY_OPEN_SQL_DB

In the system log (Transaction code: SM21),
Database error 0 with PRE access to table SPROXXSL
Report RDDEXECU

In the related work trace file(dev_w*),
C *** ERROR => DB4Cursor::Open: Cursor Already Opened (-502): C0.S4<SID>X000H.SPROXXSL.KE
[dbsldb4.cpp 6413]
C {root-id=0004AC1BF516A4E992C76AEE5F00AAF9}_{conn-id=00000000000000000000000000000000}
C *** ERROR => DB4Cursor::Open: Reopen: No
[dbsldb4.cpp 6417]
C *** ERROR => DB4Cursor::Open: SIPid:S4<SID>X000H/SPROXXSL.KEJELPECPEDDEAAB
[dbsldb4.cpp 6421]
C *** ERROR => DbSlBegRead96: xc_open failed (99)
[dbsldb4.cpp 19943]
B ***LOG BY4=> sql error 0 performing PRE on table SPROXXSL [dbdbslst 5137]
B ***LOG BY0=> <message text not available> [dbdbslst 5137]
dumping DbDbslStatement ...
B DBSL_SS( amode=DBSL_ACC_SL stmtid_ptr=0 stmt=185f76740 nlcb_ptr=0 )
B DBSL_DA( lockType=DBSL_LOCK_DEF inCnt=10 inMax=10 outCnt=1 outMax=1 bulk_cb=181
B IN [ 0]: DBSL_TYPE( type=DBSL_DATA_SHORT_CHAR(11) len=30 maxlen=30 decs=0 nulla
B ind=0 ptr=7000001255b0070 data=

SAP on IBM i

DB4Cursor::Open: Cursor Already Opened (-502), xc_open failed, SPROXXSL , KBA , BC-DB-DB4 , DB2 for AS/400 , Problem