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yii2 BEtwEEn whErE

$connection = Yii::app()->db; //连接 //查找 $sql = “SELECT * FROM `tbl_user` ORDER BY id DESC”; $command = $connection->createCommand($sql); $result = $command->queryAll(); print_r($result); //添加 $sql = ” INSERT INTO `tbl_use...

Yii2怎么在andWhere里使用orWhere 当 WHERE 条件来自于用户的输入时,你通常需要忽略用户输入的空值。 例如,在一个可以通过用户名或者邮箱搜索的表单当中,用户名或者邮箱 输入框没有输入任何东西,这种情况下你想要忽略掉对应的搜索条件, 那...

$connection = Yii::app()->db; //连接 //查找 $sql = “SELECT * FROM `tbl_user` ORDER BY id DESC”; $command = $connection->createCommand($sql); $result = $command->queryAll(); print_r($result); //添加 $sql = ” INSERT INTO `tbl_use...

static $builders = [ 'NOT' => 'buildNotCondition', 'AND' => 'buildAndCondition', 'OR' => 'buildOrCondition', 'BETWEEN' => 'buildBetweenCondition', 'NOT BETWEEN' => 'buildBetweenCondition', 'IN' => 'buildInCondition', 'NOT IN' =...

Customer::findBySql('SELECT * FROM customer')->all()->count(); 试试这个

这个你要去手册里面查看 在model见两个对应的表文件 然后主表里面关联一下(查看手册)

本文实例讲述了Yii2实现上下联动下拉框功能的方法。分享给大家供大家参考,具体如下: 首先我先解释下什么是上下联动的下拉框 假如一个view里面有两个select,第一个是公司名,第二个是分公司名。公司有多个,每个公司又有多个分公司,我们实现...

select count(*) from v$process --当前的连接数 select value from v$parameter where name = 'processes' --数据库允许的最大连接数 修改最大连接数: alter system set processes = 300 scope = spfile; 重启数据库: shutdown immediate; star...

Controller action:function actionIndex(){ $query = Article::find()->where(['status' => 1]); $countQuery = clone $query; $pages = new Pagination(['totalCount' => $countQuery->count()]); $models = $query->offset($pages->offset) -...

先创建连接对象 $connection = new \yii\db\Connection([ 'dsn' => $dsn, 'username' => $username, 'password' => $password, ]); $connection->open(); 查询返回多行: $command = $connection->createCommand('SELECT * FROM post'); $posts ...

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