ORA-62504
        illegal variable reference
        
        
        Cause
        The referenced variable was invalid. Variables referenced in the SUBSET clause must be in the PATTERN clause. Variables referenced in the DEFINE clause, the MEASURES clause, and the AFTER MATCH SKIP TO must be in the PATTERN clause or defined in the SUBSET clause.
        Action
        Choose an appropriate variable and retry the operation.
        
     
    
    
        ORA-62504
        illegal variable reference
        
        
        Cause
        The referenced variable was invalid. Variables referenced in the SUBSET clause must be in the PATTERN clause. Variables referenced in the DEFINE clause, the MEASURES clause, and the AFTER MATCH SKIP TO must be in the PATTERN clause or defined in the SUBSET clause.
        Action
        Choose an appropriate variable and retry the operation.
        
     
    
    
        ORA-62504
        illegal variable reference
        
        
        Cause
        The referenced variable was invalid. Variables referenced in the SUBSET clause must be in the PATTERN clause. Variables referenced in the DEFINE clause, the MEASURES clause, and the AFTER MATCH SKIP TO must be in the PATTERN clause or defined in the SUBSET clause.
        Action
        Choose an appropriate variable and retry the operation.