在PostgreSQL中,定义父子表后,子表可以随便删除,但是父表删除时,必须使用CASCADE级联删除或者先把子表都删了,示例如下: postgres=# drop table cities; ERROR: cannot drop table cities because other objects depend on it DETAIL: table capitals depends on table cities HINT: Use DROP ... CASCADE to drop the dependent objects too. postgres=# drop table cities cascade; NOTICE: drop cascades to table capitals DROP TABLE postgres=#
PostgreSQL删除父表
猜你喜欢
转载自my.oschina.net/javacy/blog/1811153
今日推荐
周排行