What is primary and secondary replica sets in MongoDB ?
Replica Set Primary Member : In replica set Primary is the only member that receives write operations. In replica set secondary member is to log and apply the operations to…
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mongodb
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What are MongoDB Charts ?
It is one of integrated tool used to create visual representation of your MongoDB. In a programming language such as Java or Python, it allows users to perform quick data…
What are the storage engines used by MongoDB ?
Storage engine is responsible for managing how data is stored, both in memory and on disk. It is the component of the database. MongoDB supports multiple storage engines, as different…
How to Back up and restore MongoDB Database ?
The mongo shell does not include functions for importing, exporting, restore or backup. MongoDB has created methods for accomplishing this, so that no scripting work or complex GUIs are needed. Several…
What are the elements of the Sharded Cluster ?
Sharding is used to create a cluster of MongoDB instances consisting of at least three servers. There are three types of elements in Sharded Cluster. Shards Query Router Config server…
Pros and Cons of Mongodb ?
Advantages of MongoDB : Developer UX : It is created in such a way that ensures that the developers have an excellent experience while creating apps. Programming languages like JavaScript…
How does Scale-Out occur in MongoDB ?
In MongoDB the document-oriented data model makes it easier to split data across multiple servers. Loading and Balancing data across a cluster is done by MongoDB. Then it is automatically…
What is Vertical Scaling & Horizontal Scaling ?
Scaling is used to alters size of a system. In this process expand the system to meet the expected needs or we either compress. The scaling operation is by adding…
JSON Vs BSON
BSON JSON It is binary file format. It is standard file format. BSON is faster than JSON. JSON is comparatively less…
What is the use of Capped Collection in MongoDB ?
Capped collections are fixed-size collections means when we create the collection, we must fix the maximum size of the collection (in bytes) and it can store the maximum number of…
MongoDB Vs CouchDB
MongoDB CouchDB It Provides faster read speeds. If read speed is critical to your database, MongoDB is faster than CouchDB. No mobile support provided. It can be run…
MongoDB Vs MySQL
MongoDB MySQL It uses MongoDB Query Language. It uses Structured Query language. No restrictions on schema design. It is pre-defined schema design. It does not support JOIN statements.…
What are the Features of MongoDB ?
It has so many great features while being a NoSQL database. It is unique and attractive. They are making MongoDB widely usable and popular. Features of MongoDB: Schema-less Database Replication…
What are Geospatial Indexes in MongoDB ?
It allows you to efficiently execute spatial queries on a collection that contains geospatial shapes and points. It was created by two fields, specify the location field first, then the…
What are the aggregate functions of MongoDB ?
The aggregation pipeline consists of stages, and each stage transforms the document in MongoDB. In each state, the documents are taken as input and produce the resultant set of documents…
What are the data types in MongoDB ?
The documents are stores in BSON, which is the binary encoded format of JSON in MongoDB. In MongoDB we can make remote procedure calls using BSON. BSON data format supports…
What are the different types of NoSQL databases ? Give some examples
A Database, which stores data in a format different from relational databases, hence is known as NoSQL Database. NoSQL- “not only SQL” which pertains to the fact that either the…
What is CRUD in MongoDB ?
It is used for various things like building an application (including web and mobile), or analysis of data, or administrator of a MongoDB database. Those things interact with the MongoDB…
What is the use of Index in Mongodb ?
MongoDB is one of the leading NoSQL database. It is written in C++ Program. It provides high performance and availability and high scalable. Indexing in MongoDB is used to make…
What is MongoDB ?
It is a document-oriented NoSQL database used to build highly available and scalable internet applications. Nowadays, it is one of the most powerful NoSQL systems and databases. It makes use of collections and…
