MongoDB Update (Insert a List of Item to an Array)

Question

I want to add several items to arrays of several rows in Mongo. How can I do this?

I want to start with this:

{\'x\': \'h\', arr: [1,2,3] }
{\'x\':          


        

Answer 1

the simplest approach is by using a conventional update operation

  db.urColl.update(
    { x: "h" },
    { $push: { arr: { $each: [6,8] } } },
    { multi: true }
  );`