ORA-36985
        (XSRELGID21) The source relation can be omitted only when using both surrogate GID and level order valueset.
        
        
        Cause
        The required source relation was not specified.
        Action
        Specify the source relation or both surrogate Group ID (GID) and level order valueset.
        
     
    
    
        ORA-36985
        (XSRELGID21) The source relation can be omitted only when using both surrogate GID and level order valueset.
        
        
        Cause
        Source relation was not specified.
        Action
        Specify the source relation or both surrogate gid and level order valueset.
        
     
    
    
        ORA-36985
        (XSRELGID21) The source relation can be omitted only when using both surrogate GID and level order valueset.
        
        
        Cause
        Source relation was not specified.
        Action
        Specify the source relation or both surrogate gid and level order valueset.