-- 查询test_database_name表的数量 SELECT COUNT(*) TABLES, table_schema FROM information_schema.TABLES WHERE table_schema = 'test_database_name' GROUP BY table_schema;
-- 查询test_database_name表数据和索引占磁盘空间 select TABLE_NAME, concat(truncate(data_length/1024/1024,2),' MB') as data_size, concat(truncate(index_length/1024/1024,2),' MB') as index_size from information_schema.tables where TABLE_SCHEMA = 'test_database_name' group by TABLE_NAME order by data_length desc;