Introduction In MongoDB, roles are essential to the authorization model. A role can be thought of as a privilege given to a user that allows them to perform certain tasks using certain resources. While MongoDB provides a variety of built-in roles, these predefined roles don’t always describe the exact set of privileges you want to … Continued

Introduction In the first part (Part 1) of our series on the MongoDB authorization model, we talked about user-defined roles, focusing on the various actions that a user can perform and the resources that these actions can be performed on. Now, we can turn our attention to privileges and see what they look like in … Continued

Introduction Logging is a key part of database administration, so it’s important to configure it correctly on your MongoDB deployment. Fortunately, it’s not difficult to learn how to configure MongoDB logging: If you make use of the java.util.logging package, all it takes is a bit of simple code to get your logging set up. In … Continued

Introduction This article focuses on the MongoDB forEach Example and traversal usage. MongoDB forEach function looping operators is a very common function that you should know if you deal with the database. If you have the MongoDB application installed on Windows or Ubuntu, and you want to learn the cursor.forEach() method, follow the steps below. … Continued

Introduction In this article I will introduce you to the Mongodb group by multiple fields. To understand better first we will learn about the aggregation function. MongoDB Aggregation Function Aggregation functions are used in GROUP BY clauses to aggregate grouped data. Aggregate functions perform better when used with the GROUP BY clause. However, the use … Continued

Introduction As long as the Mongodb database port is open on your server any computer can connect to your database and modify, read, or delete your MongoDB data. This article is about MongoDB creating a database username and password which will allow you to secure your data. Mongodb Enable Authentication MongoDB is directly connected by … Continued

Introduction All the content of this article is related to MongoDB distinct projection. We’ll start with discussing projection and how to use it and then move onto the distinct operator. MongoDB Projection In MongoDB, a projection means that only the required fields are selected, not every field in the document. A document can contain many … Continued

More often than not every document in a database collection will not have all the same fields as other documents or it might be null or empty. So database administrators need to understand how to take this into account in their queries. In this article we’ll demonstrate a few queries that can help you filter … Continued