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yii ,sql, 增删改查

程序员文章站 2024-02-14 14:57:04
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SQL Yii 数据的增删改查 框架 [color=#0000FF]1.$sql= "insert into tbl_user(`id`,`username`,`password`)values(null,'alu','123');
2.$sql= "select * from tbl_user where id=1;
3.$sql= "update tbl_user set password="123456" where id=6";
4.$sql= "delete from tbl_user where id=6;";
//设置字符编码
mysql_query("set names utf8");
$result=mysql_query($sql) or die('sql语句错误,系统给的提示是:'.mysql_error());

5.$num = mysql_num_rows($result)以及$num=mysql_fetch_array($result);
以上语句在yii框架里面应该怎样写?[/color]

回复讨论(解决方案)

好象回过你一个贴子,再回一次吧:

utf8编码写到配置文件main.php中:'db'=>array('connectionString' => 'mysql:host=localhost;dbname=test','emulatePrepare' => true,'username' => 'root','password' => '123','charset' => 'utf8',  //此处设定编码'tablePrefix' => 'tbl_',),控制器中:  $conn=Yii::app()->db;  $command=$conn->createCommand();直接写语句:  $command->text='select * from {{user}} where id=1';  $dataReader=$command->query();读取数据:  foreach($dataReader as $row)     { echo $row['name']; }  INSERT, UPDATE 和 DELETE 操作语句写法和上面类似,不过用execute:  $rowCount=$command->execute();返回影响行数; 

其实简单的CRUD操作,用ActiveRecord不是更方便吗?
$model = User::model()->findByPk(1);

$model->password = 'new password';

$model->save();

用yii内置的方法

其实简单的CRUD操作,用ActiveRecord不是更方便吗?
$model = User::model()->findByPk(1);
$model->password = 'new password';
$model->save();

而且CRUD都可以自动生成,命令行用yiic shell或者用可视界面gii都很方便啊,先model,再crud