获取MySQL中的外键约束列表
假设我们有一个具有表数量的数据库“业务”。如果您只想显示外键约束，请使用以下查询-
mysql> select * −> from information_schema.referential_constraints −> where constraint_schema = 'business';
以下是仅显示外键约束的输出-
+--------------------+-------------------+--------------------------+---------------------------+--------------------------+------------------------+--------------+-------------+-------------+-------------------+-----------------------+ | CONSTRAINT_CATALOG | CONSTRAINT_SCHEMA | CONSTRAINT_NAME | UNIQUE_CONSTRAINT_CATALOG | UNIQUE_CONSTRAINT_SCHEMA | UNIQUE_CONSTRAINT_NAME | MATCH_OPTION | UPDATE_RULE | DELETE_RULE | TABLE_NAME | REFERENCED_TABLE_NAME | +--------------------+-------------------+--------------------------+---------------------------+--------------------------+------------------------+--------------+-------------+-------------+-------------------+-----------------------+ | def | business | ConstChild | def | business | PRIMARY | NONE | NO ACTION | NO ACTION | childdemo | parentdemo | | def | business | ConstFK | def | business | PRIMARY | NONE | NO ACTION | NO ACTION | tblf | tblp | | def | business | constFKPK | def | business | PRIMARY | NONE | NO ACTION | NO ACTION | foreigntable | primarytable1 | | def | business | FKConst | def | business | PRIMARY | NONE | NO ACTION | NO ACTION | foreigntabledemo | primarytabledemo | | def | business | primarytable1demo_ibfk_1 | def | business | PRIMARY | NONE | NO ACTION | NO ACTION | primarytable1demo| foreigntable1 | | def | business | StudCollegeConst | def | business | PRIMARY | NONE | NO ACTION | NO ACTION | studentenrollment| college | +--------------------+-------------------+--------------------------+---------------------------+--------------------------+------------------------+--------------+-------------+-------------+-------------------+-----------------------+ 6 rows in set (0.07 sec)
热门推荐
10 新人红包祝福语简短精辟
11 幼师给毕业祝福语简短
12 生日高考祝福语妹妹简短
13 下飞机祝福语简短英文
14 元宵发客户祝福语简短
15 爸妈金婚文案祝福语简短
16 新郎朋友红包祝福语简短
17 虎年五一祝福语大全简短
18 出阁宴祝福语姐姐简短