MySQL数据和索引占用空间查询

查询所有数据库占用磁盘空间大小的SQL语句

SELECTtable_schema, -- 数据库名称concat( TRUNCATE ( sum( data_length ) / 1024 / 1024, 2 ), \'MB\' ) AS data_size, -- 数据占用空间concat( TRUNCATE ( sum( index_length ) / 1024 / 1024, 2 ), \'MB\' ) AS index_size -- 索引占用空间FROMinformation_schema.TABLESGROUP BYtable_schemaORDER BYsum( data_length ) DESC;

查询单个库中所有表磁盘占用大小的SQL语句

SELECTtable_name, -- 表名称concat( TRUNCATE ( data_length / 1024 / 1024, 2 ), \'MB\' ) AS data_size, -- 数据占用空间concat( TRUNCATE ( index_length / 1024 / 1024, 2 ), \'MB\' ) AS index_size -- 索引占用空间FROMinformation_schema.TABLESWHEREtable_schema = \'数据库名称\'ORDER BYdata_length DESC;

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