UPSERT IN MONGODB

  Introduction When working with databases, a common challenge is determining whether a record exists—and then either updating it or inserting a new one. MongoDB offers an elegant solution to this with the  Upsert  operation. It allows developers to combine the logic of  update  and  insert  in a single atomic query. In this blog, we’ll explore what  Upsert  means in MongoDB, how to use it, walk through a step-by-step example with screenshots, and discuss its future applications. What is Upsert? The term  Upsert  comes from the combination of two words:  Update  and  Insert . In MongoDB, an Upsert operation attempts to update a document. If no document matches the query condition, it  inserts a new document  instead. This operation can be performed using methods like: updateOne() updateMany() replaceOne() All of them accept an optional parameter: json This tells MongoDB: “If you don’t find the document, go a...