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ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found    Create the index like this and there will be a exception said the index is duplicated: CREATE UNIQUE INDEX W_AP_XACT_F_U1 ON W_AP_XA...

This is a configuration issue but not like the common oracle database error as the log shown,  as my problem is that I have not set the date formate of the initial extracy date, as this issue  I as...