查看数据库表基本信息。

select * from information_schema.TABLES where information_schema.TABLES.TABLE_SCHEMA = '数据库名' and information_schema.TABLES.TABLE_NAME = '表名';

查看mysql数据库大小

SELECT sum(DATA_LENGTH)+sum(INDEX_LENGTH) FROM information_schema.TABLES where TABLE_SCHEMA='数据库名';

得到的结果是以字节为单位，除1024为K，除1048576(=1024*1024)为M。

查看表的最后mysql修改时间

select TABLE_NAME,UPDATE_TIME from information_schema.TABLES where TABLE_SCHEMA='数据库名' order by UPDATE_TIME desc limit 1;

select TABLE_NAME,UPDATE_TIME from information_schema.TABLES where TABLE_SCHEMA='数据库名' and information_schema.TABLES.TABLE_NAME = '表名';