The database is a collection of information which is organized in such a way that it can be easily accessed, managed and updated. Before you start with the most popular NoSQL databases. You need to know about the NoSQL database.Most of the programmers don’t know what this means. It’s not just SQL. After getting acquainted with the NoSQL database, we’ll jump into the Best NoSQL database for the 2020 year, and we’ll also see Cassandra vs MongoDB vs HBase.
What is NOSQL DATABASE?
NoSQL databases, also known as non-relational or distributed databases, serve as an alternative to relational databases. They can store and process unstructured data (social media data, photos, MP3 files, etc.) and offer more flexibility and scalability to developers.
Data in non-relational databases can be changed on the fly without affecting any existing data. In addition, NoSQL databases can be run across multiple servers, so scaling them is cheaper and easier than scaling SQL databases.
And since NoSQL databases don’t rely on a single server, they are more fault-tolerant. This means that if one component fails, the database may continue to operate.But NoSQL databases are less mature than SQL databases, and the NoSQL community is not as well defined. Furthermore, the NoSQL databases often sacrifice ACID compliance for availability and flexibility.
NoSQL Database Properties
NoSQL is a schema-less alternative to SQL and RDBMS designed to store, process and analyze extremely large amounts of unstructured data.
The principles of ACID (atomicity, consistency, isolation and durability) are reduced in NoSQL databases. In addition, the standardization process in NoSQL is not mandatory.Due to the size and speed of modern data, it is preferable to de-normalize NoSQL databases.
The databases of NoSQL have the following properties:
- They have higher scalability.
- They use distributed computing.
- They are cost-effective.
- They support a flexible schema.
- They can process both unstructured and semi-structured data.
- There are no complex relationships, such as those between tables in the RDBMS.
Five NoSQL Database Programmers should learn in 2020.
As there are many NoSQL databases available on the market, such as Apache Cassandra, MongoDB, Redis, and Couchbase, but each has some special features and there are pros and cons of using them. Good knowledge of these is required to make informed decisions on the basis of your requirements.
MongoDB is an object-oriented, simple, dynamic, scalable NoSQL database. It is based on the NoSQL document storage model. Data objects are stored as separate documents inside the collection instead of being stored in the columns and rows of the traditional relational database. MongoDB uses schema-like JSON documents.
2. Apache Cassandra
Apache Cassandra is a free and open source NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.
The Apache Cassandra database is the right choice if you need scalability and high availability without compromising performance. Linear scalability and proven fault tolerance for commodity hardware or cloud infrastructure make it the perfect platform for mission-critical data.
PROS OF apache cassandra
cOnS OF APACHE CASSANDRA
Redis (motectionaryerver) is a key-value store. It is an open-source in-memory database project that implements a distributed, in-memory key-value store with optional durability. It can also be used as a cache and as a message broker.
Supports data structures such as strings, hashes, lists, sets, sorted range query sets, bitmaps, hyper logs, and radius query geospatial indexes.
PROS OF redis
CONS OF redis
HBase is an open-source, non-relational, distributed database modeled after Google’s Bigtable, written in Java. It is developed as part of Apache Software Foundation’s Apache Hadoop project and runs on top of HDFS (Hadoop Distributed File System), providing Hadoop’s Bigtable-like capabilities.
prOS OF Hbase
CONS OF HBASE
The focus is on the ease of use of the web. It’s a database of NoSQL document stores. Couchbase Server is a database of NoSQL documents for interactive web applications. It has a flexible data model, is easily scalable and consistently delivers high performance. Couchbase Server, JSON documents are used to represent application objects and the relationship between objects.