SQL>
SQL> SELECT dc.table_name, dcc.column_name, dcc.position,
2 dcc.constraint_name, dc.constraint_type, dc.search_condition
3 FROM user_constraints dc, user_cons_columns dcc
4 WHERE dcc.table_name = dc.table_name
5 AND dcc.owner = dc.owner
6 AND dcc.constraint_name = dc.constraint_name
7 and rownum < 50
8 ORDER BY dcc.table_name, dcc.owner, dcc.position, dcc.column_name;
no rows selected