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mysql怎么查询数据库容量

mysql查询数据库容量的方法:1、打开DOS窗口,然后进入mysql的bin目录下;2、执行“SELECT table_schema AS 'shujuku',table_name AS 'biaoming',table_rows AS 'jilushu',TRUNCATE (data_length / 1024 / 1024, 2) …”语句即可查看所有数据库各表容量。

mysql怎么查询数据库容量

本教程操作环境:Windows10系统、MySQL5.7版、Dell G3电脑。

mysql怎么查询数据库容量?

MySql查看数据库及表容量大小并排序

MySql查看数据库及表容量并排序查看所有数据库容量

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;
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查看所有数据库各表容量

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;
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查看指定数据库容量

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 = 'your_table_name';
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查看指定数据库各表容量

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 = '指定的库名'  ORDER BY     data_length DESC,     index_length DESC;
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