本文介紹MySQL查看數據庫表容量大小的命令語句，提供完整查詢語句及實例，方便大家學習使用。
1.查看所有數據庫容量大小
select table_schema as '數據庫',sum(table_rows) as '記錄數',sum(truncate(data_length/1024/1024, 2)) as '數據容量(MB)',sum(truncate(index_length/1024/1024, 2)) as '索引容量(MB)'from information_schema.tablesgroup by table_schemaorder by sum(data_length) desc, sum(index_length) desc;
2.查看所有數據庫各表容量大小
select table_schema as '數據庫',table_name as '表名',table_rows as '記錄數',truncate(data_length/1024/1024, 2) as '數據容量(MB)',truncate(index_length/1024/1024, 2) as '索引容量(MB)'from information_schema.tablesorder by data_length desc, index_length desc;
3.查看指定數據庫容量大小
例：查看mysql庫容量大小
select table_schema as '數據庫',sum(table_rows) as '記錄數',sum(truncate(data_length/1024/1024, 2)) as '數據容量(MB)',sum(truncate(index_length/1024/1024, 2)) as '索引容量(MB)'from information_schema.tableswhere table_schema='mysql';
4.查看指定數據庫各表容量大小
例：查看mysql庫各表容量大小
select table_schema as '數據庫',table_name as '表名',table_rows as '記錄數',truncate(data_length/1024/1024, 2) as '數據容量(MB)',truncate(index_length/1024/1024, 2) as '索引容量(MB)'from information_schema.tableswhere table_schema='mysql'order by data_length desc, index_length desc;
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網。
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