在mysql中更新数据是非常简单的一件事情,直接使用update set即可完成数据的更新了,下面我来给大家详细的介绍mysql中update set语句的用法。
update语法
代码如下 | 复制代码 |
UPDATE [LOW_PRIORITY] [IGNORE] tbl_name |
实例
代码如下 | 复制代码 |
create table links (name varchar(255) not null default '', url varchar(255) not null default ''); |
我们先随便插入一些数据
代码如下 | 复制代码 |
INSERT INTO users(name, age) VALUES('姚明', 25), ('比尔.盖茨', 50), ('火星人', 600); |
更新所有记录
代码如下 | 复制代码 |
update links set url='http://www.hzhuti.com'; |
上面更新就是把整个数据表里url的值都埴写为了了,这样肯定不适合现在代数据开发了,
代码如下 | 复制代码 |
|
上面就可以根据条件进行一些数据的更新了,这样我们可以根据后面where条件来进行更新了。
下面分享一个php来更新mysql数据库中指定记录的方法
代码如下 | 复制代码 |
$con = mysql_connect("localhost","peter","abc123"); |

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