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怎么通過MySQL查看數(shù)據(jù)庫表容量大小

發(fā)表時間：2023-07-11 來源：明輝站整理相關(guān)軟件相關(guān)文章人氣：

[摘要]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(xué)習(xí)使用。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_row...
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(xué)習(xí)使用。

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';

這里寫圖片描述

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;

這里寫圖片描述

本文講解了如何通過MySQL查看數(shù)據(jù)庫表容量大小，更多相關(guān)內(nèi)容請關(guān)注php中文網(wǎng)。

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