今天主要介绍MySQL查看数据库表容量大小的几个方法,仅供参考。
SELECT table_schema AS '数据库', sum( table_rows ) AS '记录数', sum( TRUNCATE ( data_length / 1024 / 1024, 2 ) ) AS '数据容量(MB)', sum( TRUNCATE ( index_length / 1024 / 1024, 2 ) ) AS '索引容量(MB)' FROM information_schema.TABLES GROUP BY table_schema ORDER BY sum( data_length ) DESC, sum( index_length ) DESC;
SELECT table_schema AS '数据库', table_name AS '表名', table_rows AS '记录数', TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '数据容量(MB)', TRUNCATE ( index_length / 1024 / 1024, 2 ) AS '索引容量(MB)' FROM information_schema.TABLES ORDER BY data_length DESC, index_length DESC;
SELECT table_schema AS '数据库', sum( table_rows ) AS '记录数', sum( TRUNCATE ( data_length / 1024 / 1024, 2 ) ) AS '数据容量(MB)', sum( TRUNCATE ( index_length / 1024 / 1024, 2 ) ) AS '索引容量(MB)' FROM information_schema.TABLES WHERE table_schema = 'mysql';
SELECT table_schema AS '数据库', table_name AS '表名', table_rows AS '记录数', TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '数据容量(MB)', TRUNCATE ( index_length / 1024 / 1024, 2 ) AS '索引容量(MB)' FROM information_schema.TABLES WHERE table_schema = 'mysql' ORDER BY data_length DESC, index_length DESC;