查询Oracle约束

经过 user_constraints表查询,constraint_type: P(主键),R(外键),C(约束)

select a.constraint_name,a.constraint_type,b.column_name,a.table_name
 from user_constraints a,user_cons_columns b
where a.table_name=b.table_name  and a.owner='SJ_BUZMGT'
and b.constraint_name like '%FK_NT%';