Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you what are the command lines of MongoDB Query. The article is rich in content and analyzed and described from a professional point of view. I hope you can get something after reading this article.

Query.All ("name", "a", "b"); / / match arrays through multiple elements

Query.And (Query.EQ ("name", "a"), Query.EQ ("title", "t")); / / satisfy multiple conditions at the same time

Query.EQ ("name", "a"); / / equals

Query.Exists ("type", true); / / determine whether the key value exists

Query.GT ("value", 2); / / greater than >

Query.GTE ("value", 3); / / greater than or equal to > =

Query.In ("name", "a", "b"); / / includes all values specified, and different types of conditions and values can be specified

Query.LT ("value", 9); / / less than <

Query.LTE ("value", 8); / less than or equal to

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