In this tutorial, we will learn how to use MongoDB in Java programming language.
MongoDB is a cross-platform, document-oriented database that provides, high performance, high availability, and easy scalability. MongoDB works on the concept of collections and documents.
Before getting started with the Java MongoDB tutorial, let's first familiarize ourselves with a few MongoDB basic concepts like database, collection, and document.
MongoDB is a cross-platform, document-oriented database that provides, high performance, high availability, and easy scalability. MongoDB works on the concept of collections and documents.
Before getting started with the Java MongoDB tutorial, let's first familiarize ourselves with a few MongoDB basic concepts like database, collection, and document.
Database
Definition: In MongoDB, a database is a container that holds a group of collections.
Functionality: Each database functions as a separate namespace and gets its set of files on the file system. You can have multiple databases within a single MongoDB instance.
Usage: Suitable for segregating different applications or different user data.
Collection
Definition: A collection in MongoDB is akin to a table in a relational database. It organizes the data as a group of documents.
Functionality: Unlike relational databases, the collections don't enforce a schema, so documents within a collection can have different fields.
Usage: Generally used to store similar types of documents, like users, orders, etc.
Document
Definition: A document is a record in a MongoDB collection. It consists of key-value pairs.
Functionality: Documents are expressed in a JSON-like format called BSON (Binary JSON), allowing them to be nested and contain arrays and other documents.
Usage: Represents an object or an entity in the application domain. For instance, a user, a product, etc.
Mapping Relational Database to MongoDB
Collections in MongoDB are equivalent to the tables in RDBMS.
Documents in MongoDB are equivalent to the rows in RDBMS.
Fields in MongoDB are equivalent to the columns in RDBMS.
Fields (key and value pairs) are stored in a document, documents are stored in collection and collections are stored in a database.
MongoDB Tutorial for Beginners
Java MongoDB Tutorials
- Install MongoDB in Windows 10 - Zip Package - In this quick article, we will learn how to install the step-by-step MongoDB zip version in Windows 10.
- Java MongoDB Connection Example - This tutorial shows how to write a Java program to connect to a standalone MongoDB server.
- Java MongoDB Create Collection Example - This tutorial shows how to create a collection in MongoDB using Java.
- Java MongoDB Drop Collection Example - This tutorial shows how to drop an existing collection in MongoDB using a Java program.
- Java MongoDB Create or Insert Document Example Tutorial - This tutorial shows how to use create or insert operations to add new documents to a collection in MongoDB using a Java program.
- Java MongoDB Update Document Example - This tutorial shows how to update documents in the collection in MongoDB using a Java program.
- Java MongoDB Read Document Example - This tutorial shows how to read documents from a collection in MongoDB using a Java program.
- Java MongoDB Delete Document Example - This tutorial shows how to delete a document in the collection in MongoDB using a Java program.
- MongoDB Java CRUD Operations Example Tutorial - In this tutorial, we will learn how to perform common CRUD (Create, Read, Update, Delete) operations in MongoDB using Java 10.
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