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统计MySQL数据表大小

Jun 07, 2016 pm 03:21 PM
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欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 有时候需要查询MySQL数据库中各个表大小,该如何操作呢? MySQL中有一个名为 information_schema 的数据库,在该库中有一个 TABLES 表,这个表主要字段分别是: TABLE_SCHEMA : 数据库名 TABLE_NAME:

欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入

  有时候需要查询MySQL数据库中各个表大小,该如何操作呢?

  MySQL中有一个名为 information_schema 的数据库,在该库中有一个 TABLES 表,这个表主要字段分别是:

  TABLE_SCHEMA : 数据库名

  TABLE_NAME:表名

  ENGINE:所使用的存储引擎

  TABLES_ROWS:记录数

  DATA_LENGTH:数据大小

  INDEX_LENGTH:索引大小

  其他字段请参考MySQL的手册。

  use information_schema;

  SELECT

  TABLE_NAME,

  (DATA_LENGTH/1024/1024) as DataM ,

  (INDEX_LENGTH/1024/1024) as IndexM,

  ((DATA_LENGTH+INDEX_LENGTH)/1024/1024) as AllM,

  TABLE_ROWS

  FROM

  TABLES

  WHERE

  TABLE_SCHEMA = 'db_ip';

统计MySQL数据表大小

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