먼저 문서로 컬렉션을 생성해 보겠습니다. 문서로 컬렉션을 생성하는 쿼리는 다음과 같습니다 -
> db.aggregationFrameworkWithOrMatchDemo.insertOne({"StudentFirstName":"John", "StudentLastName":"Smith","StudentAge":23}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ac3a96cea1f28b7aa080d") } > db.aggregationFrameworkWithOrMatchDemo.insertOne({"StudentFirstName":"Carol", "StudentLastName":"Tayor","StudentAge":24}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ac3bc6cea1f28b7aa080e") } > db.aggregationFrameworkWithOrMatchDemo.insertOne({"StudentFirstName":"David", "StudentLastName":"Miller","StudentAge":21}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ac3ce6cea1f28b7aa080f") } > db.aggregationFrameworkWithOrMatchDemo.insertOne({"StudentFirstName":"Bob", "StudentLastName":"Taylor","StudentAge":20}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ac3e16cea1f28b7aa0810") } > db.aggregationFrameworkWithOrMatchDemo.insertOne({"StudentFirstName":"Robert", "StudentLastName":"Smith","StudentAge":20}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ac3fb6cea1f28b7aa0811") } > db.aggregationFrameworkWithOrMatchDemo.insertOne({"StudentFirstName":"Mike", "StudentLastName":"Miller","StudentAge":27}); { "acknowledged" : true, "insertedId" : ObjectId("5c8ac4166cea1f28b7aa0812") }
find() 메서드를 사용하여 컬렉션의 모든 문서를 표시합니다. 쿼리는 다음과 같습니다 -
> db.aggregationFrameworkWithOrMatchDemo.find().pretty();
다음은 출력입니다 -
{ "_id" : ObjectId("5c8ac3a96cea1f28b7aa080d"), "StudentFirstName" : "John", "StudentLastName" : "Smith", "StudentAge" : 23 } { "_id" : ObjectId("5c8ac3bc6cea1f28b7aa080e"), "StudentFirstName" : "Carol", "StudentLastName" : "Tayor", "StudentAge" : 24 } { "_id" : ObjectId("5c8ac3ce6cea1f28b7aa080f"), "StudentFirstName" : "David", "StudentLastName" : "Miller", "StudentAge" : 21 } { "_id" : ObjectId("5c8ac3e16cea1f28b7aa0810"), "StudentFirstName" : "Bob", "StudentLastName" : "Taylor", "StudentAge" : 20 } { "_id" : ObjectId("5c8ac3fb6cea1f28b7aa0811"), "StudentFirstName" : "Robert", "StudentLastName" : "Smith", "StudentAge" : 20 } { "_id" : ObjectId("5c8ac4166cea1f28b7aa0812"), "StudentFirstName" : "Mike", "StudentLastName" : "Miller", "StudentAge" : 27 }
다음은 프레임워크 일치 OR을 집계하는 쿼리입니다. StudentLastName을 Smith 또는 Miller로 고려 중입니다. −
> db.aggregationFrameworkWithOrMatchDemo.aggregate({ ... $match: { $or: [{ StudentLastName: 'Smith' }, { StudentLastName: 'Miller' }] }}).pretty();
다음은 출력입니다 -
{ "_id" : ObjectId("5c8ac3a96cea1f28b7aa080d"), "StudentFirstName" : "John", "StudentLastName" : "Smith", "StudentAge" : 23 } { "_id" : ObjectId("5c8ac3ce6cea1f28b7aa080f"), "StudentFirstName" : "David", "StudentLastName" : "Miller", "StudentAge" : 21 } { "_id" : ObjectId("5c8ac3fb6cea1f28b7aa0811"), "StudentFirstName" : "Robert", "StudentLastName" : "Smith", "StudentAge" : 20 } { "_id" : ObjectId("5c8ac4166cea1f28b7aa0812"), "StudentFirstName" : "Mike", "StudentLastName" : "Miller", "StudentAge" : 27 }