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以下均为查看mytable表的信息
1.查看表的存储引擎、记录数等
mysql> show table status like 'mytable' /G;*************************** 1. row *************************** Name: mytable #表名 Engine: InnoDB #存储引擎伟InnoDB Version: 10 #mysql版本 Row_format: Compact #行格式。有Dynamic,fixed,Compact等格式。Dynamic是动态行,表字段里面宝航varchar,BloB等不定长字段。fixed是定长行。Compact是行压缩。 Rows: 0 #表中的行数 Avg_row_length: 0 #平均每行的字节数 Data_length: 16384 #整个表的数据量(字节)Max_data_length: 0 #表最大的容量。0表示无限 Index_length: 0 #索引数据占用磁盘空间的大小 Data_free: 10485760 #表示已分配但还未被使用的空间大小。 Auto_increment: NULL #下一个AUto_increment的值 Create_time: 2011-08-06 22:39:46 #创建时间 Update_time: NULL #更新时间 Check_time: NULL #使用check table等命令时的检查时间 Collation: utf8_general_ci #默认字符集和字符列排列顺序 Checksum: NULL #如果启动,则表示整个表的校验和 Create_options: max_rows=4294967295 avg_row_length=32 #表创建时的选项 Comment: 1 row in set (0.00 sec)
2.查看表结构信息
mysql> desc mytable;+---------+-------------+------+-----+---------+-------+| Field | Type | Null | Key | Default | Extra |+---------+-------------+------+-----+---------+-------+| keyword | varchar(64) | NO | PRI | NULL | || queries | int(10) | YES | | NULL | |+---------+-------------+------+-----+---------+-------+
mysql> show create table mytable; CREATE TABLE `mytable` (`id` int(11) NOT NULL AUTO_INCREMENT,`title` text NOT NULL,`content` text NOT NULL,`ordering` int(11) NOT NULL DEFAULT '0',`position` varchar(50) DEFAULT NULL,`checked_out` int(11) unsigned NOT NULL DEFAULT '0',`checked_out_time` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',`published` tinyint(1) NOT NULL DEFAULT '0',`module` varchar(50) DEFAULT NULL,`numnews` int(11) NOT NULL DEFAULT '0',`access` tinyint(3) unsigned NOT NULL DEFAULT '0',`showtitle` tinyint(3) unsigned NOT NULL DEFAULT '1',`params` text NOT NULL,`iscore` tinyint(4) NOT NULL DEFAULT '0',`client_id` tinyint(4) NOT NULL DEFAULT '0',`control` text NOT NULL,PRIMARY KEY (`id`),KEY `published` (`published`,`access`),KEY `newsfeeds` (`module`,`published`)) ENGINE=MyISAM AUTO_INCREMENT=145 DEFAULT CHARSET=utf8
use information_schema;select * from columns where table_name='mytable';
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