原文链接:https://www.cnblogs.com/zhangyuhang3/p/6873895.html
I 简单描述表结构,字段类型
desc tabl_name;
显示表结构,字段类型,主键,是否为空等属性,但不显示外键。
II 查询表中列的注释信息
select * from information_schema.columns
where table_schema = 'db' #表所在数据库
and table_name = 'tablename' ; #你要查的表
select TABLE_NAME,COLUMN_NAME,IS_NULLABLE,DATA_TYPE,COLUMN_TYPE,COLUMN_KEY,COLUMN_COMMENT from information_schema.columns
where table_schema = 'gong' #表所在数据库
and table_name = 'fx_goods' ; #你要查的表
III #查看表的注释
select table_name,table_comment from information_schema.tables where table_schema = 'db' and table_name ='tablename'
IV 查看表生成的DDL
show create table tablename.