สร้างคอลเลกชันตัวอย่าง
> db.demo140.insertOne({"Id":101,"Subjects":["MongoDB","MySQL"]});
{ "acknowledged": true, "insertedId": ObjectId("5e31c149fdf09dd6d08539a9") }
> db.demo140.insertOne({"Id":102,"Subjects":["MongoDB","Java"]});
{ "acknowledged": true, "insertedId": ObjectId("5e31c14cfdf09dd6d08539aa") }
> db.demo140.insertOne({"Id":103,"Subjects":["MongoDB","PL/SQL"]});
{ "acknowledged": true, "insertedId": ObjectId("5e31c157fdf09dd6d08539ab") }
> db.demo140.insertOne({"Id":104,"Subjects":["MongoDB","SQL Server"]});
{ "acknowledged": true, "insertedId": ObjectId("5e31c163fdf09dd6d08539ac") }
> db.demo140.insertOne({"Id":105,"Subjects":["C","C++"]});
{ "acknowledged": true, "insertedId": ObjectId("5e31c16ffdf09dd6d08539ad") }
แสดงข้อมูล
> db.demo140.find();
{ "_id": ObjectId("5e31c149fdf09dd6d08539a9"), "Id": 101, "Subjects": [ "MongoDB", "MySQL" ] }
{ "_id": ObjectId("5e31c14cfdf09dd6d08539aa"), "Id": 102, "Subjects": [ "MongoDB", "Java" ] }
{ "_id": ObjectId("5e31c157fdf09dd6d08539ab"), "Id": 103, "Subjects": [ "MongoDB", "PL/SQL" ] }
{ "_id": ObjectId("5e31c163fdf09dd6d08539ac"), "Id": 104, "Subjects": [ "MongoDB", "SQL Server" ] }
{ "_id": ObjectId("5e31c16ffdf09dd6d08539ad"), "Id": 105, "Subjects": [ "C", "C++" ] }
คิวรี: มี MongoDB แต่ไม่มี Java
ใช้ $and รวม $in และ $nin โดยตรงบนฟิลด์ Subjects:
> db.demo140.find({$and:[{Subjects:{$in:['MongoDB']}}, {Subjects:{$nin:['Java']}}]}).toArray();
ผลลัพธ์: Id 101, 103, 104 (ไม่รวม 102 ที่มี Java)
[
{ "_id": ObjectId("5e31c149fdf09dd6d08539a9"), "Id": 101, "Subjects": [ "MongoDB", "MySQL" ] },
{ "_id": ObjectId("5e31c157fdf09dd6d08539ab"), "Id": 103, "Subjects": [ "MongoDB", "PL/SQL" ] },
{ "_id": ObjectId("5e31c163fdf09dd6d08539ac"), "Id": 104, "Subjects": [ "MongoDB", "SQL Server" ] }
]
