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mysql查表语句
[sql]
describe table_name;
这个命令用来显示一个表格的结构
+----------+-----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+-----------+------+-----+---------+-------+
| ID | int(11) | NO | PRI | NULL | |
| userName | char(20) | NO | | NULL | |
| password | char(20) | NO | | NULL | |
| niName | char(20) | NO | | NULL | |
| sex | char(10) | NO | | NULL | |
| phone | char(20) | YES | | NULL | |
| address | char(100) | YES | | NULL | |
+----------+-----------+------+-----+---------+-------+
和这个命令可以实现同样效果的是：
show columns from table_name;
show create table table_name;//显示某个表格被创建时所用的SQL语句
create table user | CREATE TABLE `user` (
`ID` int(11) NOT NULL,
`userName` char(20) NOT NULL,
`password` char(20) NOT NULL,
`niName` char(20) NOT NULL,
`sex` char(10) NOT NULL,
`phone` char(20) DEFAULT NULL,
`address` char(100) DEFAULT NULL,
PRIMARY KEY (`ID`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
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