MongoDB Official C # driver in query condition queries usage

Source: Internet
Author: User

Http://www.cnblogs.com/viprx/archive/2012/09/06/2673693.html

The basic syntax for MONGODB conditional queries.

Query.all ("name", "a", "B");//match array with 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 if 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, you can specify different types of conditions and values

query.lt ("value", 9);//Less than <

Query.lte ("value", 8);//less than or equal to <=

Query.mod ("Value", 3, 1);//Divide the query value by the first given value and return the result if the remainder equals the second given value

Query.ne ("name", "C");//Not equal to

Query.nor (array);//do not include values in the array

Query.not ("name");//Element conditional statement

Query.notin ("name", "a", 2);//Returns a document that does not match all the conditions in the array

Query.or (Query.eq ("name", "a"), Query.eq ("title", "T"));//satisfies one of the conditions

Query.size ("name", 2);//The length of the given key

Query.type ("_id", bsontype.objectid);//The type of the given key

Query.where (bsonjavascript);//execute JavaScript

Query.matches ("Title", str);//fuzzy query equivalent to SQL in like--STR can contain regular expressions

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