查询mysql的数据库容量

查看所有数据库容量大小

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SELECT     table_schema AS '数据库',     sum( table_rows ) AS '记录数',     sum(     TRUNCATE ( data_length / 1024 / 1024/1024, 2 )) AS '数据容量(G)',     sum(     TRUNCATE ( index_length / 1024 / 1024/1024, 2 )) AS '索引容量(G)' FROM     information_schema.TABLES GROUP BY     table_schema ORDER BY     sum( data_length ) DESC,     sum( index_length ) DESC;

　　

查看所有数据库各表容量大小

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SELECT     table_schema AS '数据库',     table_name AS '表名',     table_rows AS '记录数',     TRUNCATE ( data_length / 1024 / 1024/1024, 2 ) AS '数据容量(G)',     TRUNCATE ( index_length / 1024 / 1024/1024, 2 ) AS '索引容量(G)' FROM     information_schema.TABLES ORDER BY     data_length DESC,     index_length DESC;