mongodb-position

文章目录

1. 1. ref

mongodb 数组插入数据位置

db.getCollection('Students').find({})

db.Students.insert({
    _id:1,
    scores:[1]
    });

db.Students.update(
   { _id: 1 },
   {
     $push: {
        scores: {
           $each: [ 99 ],
           $position: 1
        }
     }
   }
)

ref

https://docs.mongodb.org/manual/reference/operator/update/position/#up._S_position