Mongodb字段不为空删除
如何删除字段值不为null的集合中的所有文档?MySql查询版本基本上如下所示:Mongodb字段不为空删除,mongodb,Mongodb,如何删除字段值不为null的集合中的所有文档?MySql查询版本基本上如下所示: // MySql query DELETE FROM companies WHERE createdBy != NULL // What I tried but did not work. $this->mongo->companies->remove(array('createdBy' => true)); 我甚至不知道这是否可能,如果有人能帮我,我将不胜感激;) 谢谢:)您可以通过操
// MySql query
DELETE FROM companies WHERE createdBy != NULL
// What I tried but did not work.
$this->mongo->companies->remove(array('createdBy' => true));
我甚至不知道这是否可能,如果有人能帮我,我将不胜感激;)
谢谢:)您可以通过操作员轻松操作:
db.companies.find( { createdBy : { $ne : null } } );