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本文介紹mysql查看數(shù)據(jù)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。

相關mysql視頻教程推薦：《mysql教程》

1.查看所有數(shù)據(jù)庫容量大小

select?table_schema?as?'數(shù)據(jù)庫',sum(table_rows)?as?'記錄數(shù)',sum(truncate(data_length/1024/1024,?2))?as?'數(shù)據(jù)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(shù)據(jù)庫各表容量大小

select?table_schema?as?'數(shù)據(jù)庫', table_name?as?'表名', table_rows?as?'記錄數(shù)',truncate(data_length/1024/1024,?2)?as?'數(shù)據(jù)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(shù)據(jù)庫容量大小

例：查看mysql庫容量大小

select?table_schema?as?'數(shù)據(jù)庫',sum(table_rows)?as?'記錄數(shù)',sum(truncate(data_length/1024/1024,?2))?as?'數(shù)據(jù)容量(MB)',sum(truncate(index_length/1024/1024,?2))?as?'索引容量(MB)'from?information_schema.tableswhere?table_schema='mysql';

MySQL查看數(shù)據(jù)庫表容量大小
4.查看指定數(shù)據(jù)庫各表容量大小

例：查看mysql庫各表容量大小

select?table_schema?as?'數(shù)據(jù)庫', table_name?as?'表名', table_rows?as?'記錄數(shù)',truncate(data_length/1024/1024,?2)?as?'數(shù)據(jù)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;

MySQL查看數(shù)據(jù)庫表容量大小

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