ORA-30661
        NOT NULL constraint violated on fetch from external or hybrid-partitioned table (string)
        
        
        Cause
        A NULL entry was detected in the column with a NOT NULL constraint during a fetch from an external or hybrid-partitioned table.
        Action
        Remove the NOT NULL constraint on that column or update the external or hybrid-partitioned table entry.
        
     
    
    
        ORA-30661
        NOT NULL constraint violated on fetch from external or hybrid-partitioned table (string)
        
        
        Cause
        A NULL entry was detected in the column with a NOT NULL constraint during a fetch from an external or hybrid-partitioned table.
        Action
        Remove the NOT NULL constraint on that column or update the external or hybrid-partitioned table entry.
        
     
    
    
        ORA-30661
        NOT NULL constraint violated on fetch from external or hybrid-partitioned table (string)
        
        
        Cause
        A NULL entry was detected in the column with a NOT NULL constraint during a fetch from an external or hybrid-partitioned table.
        Action
        Remove the NOT NULL constraint on that column or update the external or hybrid-partitioned table entry.