MySQL查看數(shù)據(jù)庫表容量大小

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';

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;

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