mysql常用查看表结构的SQL语句

1.查看表结构：

SELECT column_name,data_type FROM information_schema.columns WHERE table_name=\'数据库表名\';

2.查看表的主键：

SELECT column_name AS 主键 FROM INFORMATION_SCHEMA.`KEY_COLUMN_USAGE` WHERE table_name=\'数据库表名\' AND constraint_name=\'PRIMARY\'