MySQL 查询数据库表的数量
1.获取指定数据库的表的数量
SELECT COUNT(*) TABLES, table_schema FROM information_schema.TABLES GROUP BY table_schema;

2.获取mysql下所有数据库表的数量
SELECT COUNT(*) TABLES, table_schema FROM information_schema.TABLES
WHERE table_schema = '数据库名' GROUP BY table_schema;

查询当前库所有表数据量
SELECT TABLE_NAME,TABLE_ROWS FROM information_schema.`TABLES`
WHERE TABLE_SCHEMA = (SELECT database())
ORDER BY TABLE_ROWS DESC;

REF
https://baijiahao.baidu.com/s?id=1605681796772603432&wfr=spider&for=pc










