MongoDB等效于SQL"OR" [英] MongoDB equivalent of SQL "OR"

问题描述

因此，MongoDB在查找记录时默认为"AND".例如:

So, MongoDB defaults to "AND" when finding records. For example:

db.users.find({age: {'$gte': 30}, {'$lte': 40}});

上面的查询发现> = 30 AND < = 40岁的用户.

The above query finds users >= 30 AND <= 40 years old.

我将如何找到< = 30 OR > = 40岁的用户?

How would I find users <= 30 OR >= 40 years old?

推荐答案

在不久的将来将会有一个or运算符.每晚的Mongodb构建已具有$ or.您还可以使用$ where并使用JavaScript表示or.

There will be an or operator in the near future. The nightly Mongodb build has already an $or. You can also use $where and use JavaScript to express the or.

请参见 http://groups.google.com/group/mongodb-user/browse_thread/thread/a9a4d8b863d84601

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