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为mysql数据库添加添加事务处理的方法

WBOY
WBOYOriginal
2016-06-07 18:03:541196browse

开始首先说明一下,mysql数据库默认的数据库引擎是MyISAM,是不支持事务的,单数如果你添加了数据执行语句是不会出错的,单数不管用,即便是回滚事务,记录也是插入进去了,所有首先我们要做的第一步是更改数据库引擎

语句如下:alter table tableName engine=InnoDB;
用到的表
代码如下:
CREATE TABLE IF NOT EXISTS `test` (
`id` int(10) NOT NULL auto_increment,
`websitename` varchar(200) character set utf8 NOT NULL,
`websiteurl` varchar(200) character set utf8 NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;

第二不就是如果和添加事物:
代码如下:
$con = mysql_connect("localhost", "root", "vertrigo");
//开始事务
mysql_db_query("mysqlnew","BEGIN");
$insertSql ="insert into test(websitename,websiteurl)values('脚本之家','http://www.jb51.net')";//该记录插入数据库
mysql_db_query("mysqlnew",$insertSql);
$insertSql ="insert into test(websitename,websiteurl)values('百度','http://www.baidu.com')";//该记录插入数据库
mysql_db_query("mysqlnew",$insertSql);
//结束事务事务
mysql_db_query("mysqlnew","COMMIT");
//开始事务
mysql_db_query("mysqlnew","BEGIN");
$insertSql ="insert into test(websitename,websiteurl)values('google','http://www.google.com.hk')";//该记录不插入数据库
mysql_db_query("mysqlnew",$insertSql);
//结束事务事务
mysql_db_query("mysqlnew","ROLLBACK");
//开始事务
mysql_db_query("mysqlnew","BEGIN");
$insertSql ="insert into test(websitename,websiteurl)values('bing','http://www.bing.com')";//该记录不插入数据库
mysql_db_query("mysqlnew",$insertSql);
?>

插入的数据
id websitename websiteurl
1 脚本之家 http://www.jb51.net
2 百度 http://www.baidu.com
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