Home Database Mysql Tutorial Mysql中 show table status 获取表信息的方法_MySQL

Mysql中 show table status 获取表信息的方法_MySQL

May 27, 2016 pm 01:45 PM

使用方法

mysql>show table status;
mysql>show table status like 'esf_seller_history'\G;
mysql>show table status like 'esf_%'\G;
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样例:

mysql>show table status like 'esf_seller_history'\G;
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1.Name

表名称

2.Engine:

表的存储引擎

3.Version:

版本

4.Row_format

行格式。对于MyISAM引擎,这可能是Dynamic,Fixed或Compressed。动态行的行长度可变,例如Varchar或Blob类型字段。固定行是指行长度不变,例如Char和Integer类型字段。

5. Rows

表中的行数。对于非事务性表,这个值是精确的,对于事务性引擎,这个值通常是估算的。

6.Avg_row_length

平均每行包括的字节数

7.Data_length

整个表的数据量(单位:字节)

8.Max_data_length

表可以容纳的最大数据量

9.Index_length

索引占用磁盘的空间大小

10.Data_free

对于MyISAM引擎,标识已分配,但现在未使用的空间,并且包含了已被删除行的空间。

11.Auto_increment

下一个Auto_increment的值

12.Create_time

表的创建时间

13.Update_time

表的最近更新时间

14.Check_time

使用 check table 或myisamchk工具检查表的最近时间

15.Collation

表的默认字符集和字符排序规则

16.Checksum

如果启用,则对整个表的内容计算时的校验和

17.Create_options

指表创建时的其他所有选项

18.Comment

包含了其他额外信息,对于MyISAM引擎,包含了注释徐标新,如果表使用的是innodb引擎 ,将现实表的剩余空间。如果是一

个视图,注释里面包含了VIEW字样。

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