Mongodb compass count distinct11/6/2023 In this topic, you learned how to perform equality match and only those document that satisfies the condition in MongoDB. The MongoDB aggregation pipeline consists of stages. There are 3 ways to perform aggregation operations:ĭocuments enter into a multi-stage pipeline that converts the documents into an aggregated result. It is an operation that is used to process the data and it consists of the stages that perform a number of operations on the grouped data to return a single result. How can I run such an SQL query in MongoDB Compass select subject,count () from books group by subject. Instead, you would want to group on distinct values counting the amount of times that value exists, at which point you could easily add a stage to sum. Please make sure you have selected the correct db. I need to build a query using MongoDB Compass tool to select distinct values of the genre field. Also by default, the shell in compass connects to the test db by default. I am using MongoDB Compass and dont have Mongo Shell. Replace the db.collection.aggregate with db.checklists.aggregate. Based on the screenshots attached in the question, it looks like the collection name is wrong.
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