查询外键
select c.constraint_name, c.table_name, c.constraint_type, c.r_constraint_name from user_constraints c where c.r_constraint_name = 'PK_ZYY_USER' and c.constraint_type = 'R'或者
select * from user_cons_columns t where t.constraint_name like
查询外键
select c.constraint_name, c.table_name, c.constraint_type, c.r_constraint_name from user_constraints c where c.r_constraint_name = 'PK_ZYY_USER' and c.constraint_type = 'R'或者
select * from user_cons_columns t where t.constraint_name like