Mysql (子查询)第yii条中的位置
我有一个类似这样的Mysql (子查询)第yii条中的位置,mysql,yii,yii2,yii2-advanced-app,Mysql,Yii,Yii2,Yii2 Advanced App,我有一个类似这样的mysql查询 (SELECT `notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, `event`.`title` as sourceName,concat_ws(" ",v.firstname,v.lastname) as ActorName FROM `notifi
mysql
查询
(SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, `event`.`title` as sourceName,concat_ws(" ",v.firstname,v.lastname) as ActorName
FROM
`notification`
INNER JOIN
`event`
ON
event.id = notification.source_id
INNER JOIN
`user` as v
ON
v.id = notification.user_id
AND
notification.activity_type = "checkin"
where
user_id in
(SELECT friend.friend_id from friend WHERE friend.user_id=1 AND friend.is_active=1))
UNION
(SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, concat_ws(" ",u.firstname,u.lastname) as sourceName,concat_ws(" ",v.firstname,v.lastname) as ActorName
FROM
`notification`
INNER JOIN
`user` as u
ON
u.id = notification.source_id
INNER JOIN
`user` as v ON v.id = notification.user_id
AND
notification.activity_type = "friend"
where user_id in
(SELECT friend.friend_id from friend WHERE friend.user_id=1 AND friend.is_active=1) )
(SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, `event`.`title` AS `sourceName`, concat_ws(" ",v.firstname,v.lastname) as ActorName, `organiser`.`image` AS `image`
FROM
`notification`
INNER JOIN
`event`
ON
event.id = notification.source_id
INNER JOIN
`organiser`
ON
organiser.organiser_id = event.organiser_id
INNER JOIN
`user` `v`
ON
v.id = notification.user_id
AND
notification.activity_type = "checkin"
WHERE
`user_id` IN (:qp0, :qp1))
UNION
( SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, concat_ws(" ",u.firstname,u.lastname) as sourceName, concat_ws(" ",v.firstname,v.lastname) as ActorName, `user_image`.`imagepath` AS `image`
FROM
`notification`
INNER JOIN
`user` `u`
ON
u.id = notification.source_id
INNER JOIN
`user_image`
ON
user_image.user_id = notification.user_id
INNER JOIN
`user` `v`
ON
v.id = notification.user_id
AND
notification.activity_type = "friend"
WHERE
(user_image.imagetype="profile") AND (`user_id`=:qp2) )
我想在yii2
中编写这个查询,但我不知道如何在where
in子句中编写子查询
到目前为止,我已经做到了这一点
$query2 ->select(['notification.id', 'notification.user_id AS user_id', 'notification.activity_type', 'notification.source_id', 'concat_ws(" ",u.firstname,u.lastname) as sourceName','concat_ws(" ",v.firstname,v.lastname) as ActorName','user_image.imagepath as image'])
->from('notification' )
->innerJoin('user as u', 'u.id = notification.source_id')
->innerJoin('user_image','user_image.user_id = notification.user_id')
->innerJoin('user as v', 'v.id = notification.user_id AND notification.activity_type = "friend"')
->where('user_image.imagetype="profile"')
->andWhere(['user_id'=>('SELECT friend.friend_id from friend WHERE friend.user_id='.$id.' AND friend.is_active=1')]);
$query ->select(['notification.id','notification.user_id AS user_id','notification.activity_type', 'notification.source_id', 'event.title as sourceName','concat_ws(" ",v.firstname,v.lastname) as ActorName','organiser.image as image'])
->from('notification')
->innerJoin('event', 'event.id = notification.source_id')
->innerJoin('organiser','organiser.organiser_id = event.organiser_id')
->innerJoin('user as v', 'v.id = notification.user_id AND notification.activity_type = "checkin"')
->Where(['in', 'user_id', [488,489]])
->union($query2);
它生成如下的命令查询
(SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, `event`.`title` as sourceName,concat_ws(" ",v.firstname,v.lastname) as ActorName
FROM
`notification`
INNER JOIN
`event`
ON
event.id = notification.source_id
INNER JOIN
`user` as v
ON
v.id = notification.user_id
AND
notification.activity_type = "checkin"
where
user_id in
(SELECT friend.friend_id from friend WHERE friend.user_id=1 AND friend.is_active=1))
UNION
(SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, concat_ws(" ",u.firstname,u.lastname) as sourceName,concat_ws(" ",v.firstname,v.lastname) as ActorName
FROM
`notification`
INNER JOIN
`user` as u
ON
u.id = notification.source_id
INNER JOIN
`user` as v ON v.id = notification.user_id
AND
notification.activity_type = "friend"
where user_id in
(SELECT friend.friend_id from friend WHERE friend.user_id=1 AND friend.is_active=1) )
(SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, `event`.`title` AS `sourceName`, concat_ws(" ",v.firstname,v.lastname) as ActorName, `organiser`.`image` AS `image`
FROM
`notification`
INNER JOIN
`event`
ON
event.id = notification.source_id
INNER JOIN
`organiser`
ON
organiser.organiser_id = event.organiser_id
INNER JOIN
`user` `v`
ON
v.id = notification.user_id
AND
notification.activity_type = "checkin"
WHERE
`user_id` IN (:qp0, :qp1))
UNION
( SELECT
`notification`.`id`, `notification`.`user_id` AS `user_id`, `notification`.`activity_type`, `notification`.`source_id`, concat_ws(" ",u.firstname,u.lastname) as sourceName, concat_ws(" ",v.firstname,v.lastname) as ActorName, `user_image`.`imagepath` AS `image`
FROM
`notification`
INNER JOIN
`user` `u`
ON
u.id = notification.source_id
INNER JOIN
`user_image`
ON
user_image.user_id = notification.user_id
INNER JOIN
`user` `v`
ON
v.id = notification.user_id
AND
notification.activity_type = "friend"
WHERE
(user_image.imagetype="profile") AND (`user_id`=:qp2) )
但是它不起作用,那么正确的语法是什么呢
如果where
in可以使用内部连接编写,也可以自由给出建议
这将使编写查询变得非常容易
谢谢您可以使用Yii2,下面是一个示例
$subQuery = (new \yii\db\Query())->select([
'users.id as userId',
'users.first_name',
'users.username',
'users.last_name',
'users.sector_id',
])
->from(['users'])
->where(['=', 'role_id', 3])
->orWhere(['=', 'role_id', 2])
->groupBy('users.id');
$query = (new \yii\db\Query())->select(['user.*', 'user_address.*'])
->from(['user'=>$subQuery])
->leftJoin('user_address', 'user.userId = user_address.user_id')
->where(['between', 'latitude', $min_lat, $max_lat])
->andWhere(['between', 'longitude', $min_lon, $max_lon])
->groupBy('user.userId');
您得到了什么错误?我还想在查询的末尾添加限制
和偏移量
。。我的意思是我想为这两个查询的总结果集设置限制。。我该怎么做???