MySQL中如何查看数据库表容量大小

今天就跟大家聊聊有关MySQL中如何查看数据库表容量大小，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

1、查看所有数据库容量大小

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;

2、查看所有数据库各表容量大小

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;

3、查看指定数据库容量大小

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';

4、查看指定数据库各表容量大小

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;

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