cosmos db sql query with non alphanumeric field name

Question

My data structure in cosmosdb is next

   {
      \"_id\": {
      \"$oid\": \"554f7dc4e4b03c257a33f75c\"
      },
      .................
   }

Answer 1

To use a special character, like $, you need to use bracket notation:

SELECT c._id FROM c
order by c._id["$oid"]

You can do this with each property in the hierarchy, so the following also works:

SELECT c._id FROM c
order by c["_id"]["$oid"]