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一文看懂MySQL如何查看数据库表容量大小

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前言:

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概述

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。

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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标签: #mysql查询某张表大小 #mysql查询数据库各表大小 #mysql查看数据库表大小 #mysql查看数据库中的表的数据 #mysql怎么查看表中数据