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information_schema.TABLE_CONSTRAINTS

更新时间：2023-07-18 17:26:00

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功能

描述表约束信息。

字段说明

字段名称	类型	是否可以为 NULL	描述
CONSTRAINT_CATALOG	varchar(4096)	NO	约束目录
CONSTRAINT_SCHEMA	varchar(128)	NO	数据库名
CONSTRAINT_NAME	varchar(128)	NO	约束名称
TABLE_SCHEMA	varchar(128)	NO	数据库名
TABLE_NAME	varchar(256)	NO	表名
CONSTRAINT_TYPE	varchar(128)	NO	约束类型

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