Author: B D

We have been using MongoDB Object Id in all the previous chapters. In this chapter, we will understand the structure of ObjectId. An ObjectId is a 12-byte BSON type having the following…

In this chapter, we will learn about Indexing Limitations and their other components. Extra Overhead Every index occupies some space as well as causes an overhead on each insert, update…

we have inserted the following document in the collection named users as shown below − db.users.insert(        {               "address": {                      "city": "Los Angeles",                      "state": "California",                      "pincode":…

Model Data for Atomic Operations The recommended approach to maintain atomicity would be to keep all the related information, which is frequently updated together in a single document using embedded documents.…

Analyzing queries is a very important aspect of measuring how effective the database and indexing design is. We will learn about the frequently used $explain and $hint queries. Using $explain The $explain operator provides information on…

In this chapter, we will learn about covered queries. What is a Covered Query? As per the official MongoDB documentation, a covered query is a query in which − All…

As seen in the last chapter of MongoDB relationships, to implement a normalized database structure in MongoDB, we use the concept of Referenced Relationships also referred to as Manual References in which we manually…

Relationships in MongoDB represent how various documents are logically related to each other. Relationships can be modeled via Embedded and Referenced approaches. Such relationships can be either 1:1, 1:N, N:1, or N: N. Let…

To use MongoDB with PHP, you need to use a MongoDB PHP driver. Make sure to download the latest release of it. Now unzip the archive and put php_mongo.dll in…

In this chapter, we will learn how to set up MongoDB CLIENT. Installation Before you start using MongoDB in your Java programs, you need to make sure that you have…