Get records from two collection in mongoDB using limit and skip

Question

I have two collection called "Order" and "Production Order ". I have record limit for 40 on each page . So I need to display total 40 records from both .I have number of question as below mention .

1) Can we get records for two collection from one query ?. 2) If i will use two query its really hard to display because in case of "Orders " will come 30 and "Production Order "will come 10 and if give limit of 20 for each collection 10 remaining will not display from "Orders "

Answer 1

possible ways i can think now for your requirement will be

1) Use relationShip ( 1To1 , 1ToMany , ManyToMany ) and then fetch relative data using .populate() function of mongoose to get desired data

2) Or you can use data replication (inCase you done want relationship in Database)

"order": {
  "_id": "313424535435", // you can add other relevant data according to you need
  "production_order": {
    "_id": "127342684783" // only add that data which is necessary 
  }
}

and Vice-versa