Push in MongoDB Nested Data

  mongodb, question

Mongodb stores data of similar structure:

{
 _id:"10001",
 array:[
 {sub_id:"1",sub_array:["text11","text12","text13"]},
 {sub_id:"2",sub_array:["text21","text22","text23"]},
 {sub_id:"3",sub_array:["text31","text32","text33"]}
 ]
 }

If you add content directly to the array, it is very simple, just use the $push operator.
But if I want to push several strings into sub_array with sub_id 2, how should I locate them?

I can’t.

Must firstfind, according to the query results to locatesub_idWhich is the array (assuming that the label in the title is 1), the last update{"array.1.sub_array": {$push: "text24"}}.

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