MySQL vs NoSQL : Which one and why: SQL vs NoSQL Database Differences

Most of you are already familiar with SQL database, and have a good knowledge on either MySQL, Oracle, or other SQL databases. In the last several years, NoSQL database is getting widely adopted to solve various business problems.

It is helpful to understand the difference between SQL and NoSQL database, and some of available NoSQL database that you can play around with.

MySQL – Some Basic Advantage :Overview


MySQL database is very popular open-source database. It is generally been stacked with apache and PHP, although it can be also stacked with nginx and server side javascripting using Node js. The following are some of MySQL benefits and strengths:

Replication: By replicating MySQL database across multiple nodes the work load can be reduced heavily increasing the scalability and availability of business application

Sharding: MySQL sharding os useful when there is large no of write operations in a high traffic website. By sharding MySQL servers, the application is partitioned into multiple servers dividing the database into small chunks. As low cost servers can be deployed for this purpose, this is cost effective.

Memcached as a NoSQL API to MySQL: Memcached can be used to increase the performance of the data retrieval operations giving an advantage of NoSQL api to MySQL server.

Maturity: This database has been around for a long time and tremendous community input and testing has gone into this database making it very stable.

Wide range of Platforms and Languages: MySql is available for all major platforms like Linux, Windows, Mac, BSD and Solaris. It also has connectors to languages like Node.js, Ruby, C#, C++, C, Java, Perl, PHP and Python.

Cost effectiveness: It is open source and free.

MS SQL Server – Basic Advantage : Overview


It is a powerful and user friendly database which has good stability, reliability and scalability with support from Microsoft. The following are some of MS-SQL benefits and strengths:

Integrated Development Environment: Microsoft visual studio, Sql Server Management Studio and Visual Developer tools provide a very helpful way for development and increase the developers productivity.
Disaster Recovery: It has good disaster recovery mechanism including database mirroring, fail over clustering and RAID partitioning.
Cloud back-up: Microsoft also provides cloud storage when you perform a cloud-backup of your database

Oracle – Basic Advantage : Overview


It is a limited edition of Oracle Enterprise Edition server with certain limitations. This database is free for development and deployment. The following are some of Oracle benefits and strengths:

Easy to Upgrade: Can be easily upgraded to newer version, or to an enterprise edition.
Wide platform support: It supports a wide range of platforms including Linux and Windows

Scalability: Although the scalability of this database is not cost effective as MySQL server, but the solution is very reliable, secure, easily manageable and productive.

MongoDB – Basic Advantage : Overview


Mongodb is one of the most popular document based NoSQL database as it stores data in JSON like documents. It is non-relational database with dynamic schema. It has been developed by the founders of DoubleClick, written in C++ and is currently being used by some big companies like The New York Times, Craigslist, MTV Networks. The following are some of MongoDB benefits and strengths:

Speed: For simple queries, it gives good performance, as all the related data are in single document which eliminates the join operations.

Scalability: It is horizontally scalable i.e. you can reduce the workload by increasing the number of servers in your resource pool instead of relying on a stand alone resource.
Manageable: It is easy to use for both developers and administrators. This also gives the ability to shard database
Dynamic Schema: Its gives you the flexibility to evolve your data schema without modifying the existing data

CouchDB – Basic Advantage : Overview

CouchDB is also a document based NoSQL database. It stores data in form of JSON documents. The following are some of CouchDB benefits and strengths:

Schema-less: As a member of NoSQL family, it also have dynamic schema which makes it more flexible, having a form of JSON documents for storing data.

HTTP query: You can access your database documents using your web browser.

Conflict Resolution: It has automatic conflict detection which is useful while in a distributed database.

Easy Replication: Implementing replication is fairly straight forward

These are some points which gives us some difference between SQL and NOSQL Databases.

  1. SQL databases are primarily called as Relational Databases (RDBMS); whereas NoSQL database are primarily called as non-relational or distributed database.
  2. SQL databases have predefined schema whereas NoSQL databases have dynamic schema for unstructured data.
  3. SQL databases are vertically scalable whereas the NoSQL databases are horizontally scalable. SQL databases are scaled by increasing the horse-power of the hardware. NoSQL databases are scaled by increasing the databases servers in the pool of resources to reduce the load.
  4. In case of scalability: In most typical situations, SQL databases are vertically scalable. You can manage increasing load by increasing the CPU, RAM, SSD, etc, on a single server. On the other hand, NoSQL databases are horizontally scalable. You can just add few more servers easily in your NoSQL database infrastructure to handle the large traffic.
  5. For complex queries: SQL databases are good fit for the complex query intensive environment whereas NoSQL databases are not good fit for complex queries. On a high-level, NoSQL don’t have standard interfaces to perform complex queries, and the queries themselves in NoSQL are not as powerful as SQL query language.
  6. SQL databases are table based databases whereas NoSQL databases are document based, key-value pairs, graph databases or wide-column stores. This means that SQL databases represent data in form of tables which consists of n number of rows of data whereas NoSQL databases are the collection of key-value pair, documents, graph databases or wide-column stores which do not have standard schema definitions which it needs to adhered to.
  7. SQL databases uses SQL ( structured query language ) for defining and manipulating the data, which is very powerful. In NoSQL database, queries are focused on collection of documents. Sometimes it is also called as UnQL (Unstructured Query Language). The syntax of using UnQL varies from database to database.
  8. SQL database examples: MySql, Oracle, Sqlite, Postgres and MS-SQL. NoSQL database examples: MongoDB, BigTable, Redis, RavenDb, Cassandra, Hbase, Neo4j and CouchDb
    For complex queries: SQL databases are good fit for the complex query intensive environment whereas NoSQL databases are not good fit for complex queries. On a high-level, NoSQL don’t have standard interfaces to perform complex queries, and the queries themselves in NoSQL are not as powerful as SQL query language.
  9. For the type of data to be stored: SQL databases are not best fit for hierarchical data storage. But, NoSQL database fits better for the hierarchical data storage as it follows the key-value pair way of storing data similar to JSON data. NoSQL database are highly preferred for large data set (i.e for big data). Hbase is an example for this purpose.
  10. For high transactional based application: SQL databases are best fit for heavy duty transactional type applications, as it is more stable and promises the atomicity as well as integrity of the data. While you can use NoSQL for transactions purpose, it is still not comparable and sable enough in high load and for complex transactional applications.
  11. For support: Excellent support are available for all SQL database from their vendors. There are also lot of independent consultations who can help you with SQL database for a very large scale deployments. For some NoSQL database you still have to rely on community support, and only limited outside experts are available for you to setup and deploy your large scale NoSQL deployments.
  12. For properties: SQL databases emphasizes on ACID properties ( Atomicity, Consistency, Isolation and Durability) whereas the NoSQL database follows the Brewers CAP theorem ( Consistency, Availability and Partition tolerance )
  13. For DB types: On a high-level, we can classify SQL databases as either open-source or close-sourced from commercial vendors. NoSQL databases can be classified on the basis of way of storing data as graph databases, key-value store databases, document store databases, column store database and XML databases.

NoSQL : Advantage – Disadvantage 


  1. Non-Relational means table-less: NoSQL databases are non-relational, hence, very different from SQL databases. This means they are easier to manage and they provide a higher level of flexibility with newer data models.
  2. Mostly Open Source: The open source nature of NoSQL databases means it is now possible to use large data hungry applications at a lower price point. This is because open source technologies are free of cost.
  3. Easier scalability through support for Map Reduce: NoSQL database experts often use elastic scalability as a major selling point of NoSQL. NoSQL databases are designed to function on full throttle even with low-cost hardware.
  4. No need to develop a detailed database model: The non-relational nature of a NoSQL database allows database architects to quickly create a database without needing to develop a detailed (fine-grained) database model. This saves a lot of development time.


Lack of community: NoSQL is relatively new and lacks a healthy community. Meanwhile, MySQL has a seasoned community willing to help you start on your journey into the world of databases.
Lack of reporting tools: A major problem with NoSQL databases is the lack of reporting tools for analysis and performance testing. However, with MySQL, you can find a wide array of reporting tools to help you prove your application’s validity.
Doesn’t conform to ACID properties: Relational database systems function on the ACID paradigm (Atomicity, Consistency, Isolation, Durability). NoSQL databases don’t.
Lack of standardization: In order for NoSQL to grow, it needs a standard query language like SQL. This is a major issue highlighted by researchers at Microsoft, who claim that NoSQL’s lack of standardization can cause a problem during migration. Besides this, standardization is important for the database industry to unify itself in future.

NoSQL databases are becoming a major part of the database landscape today, and with their handful of advantages, they can be a real game changer in the enterprise arena. However, NoSQL isn’t ripe yet, and professionals in the industry need to approach it with caution. This is because it lacks the maturity that SQL databases like MySQL offer. If your application doesn’t fall into the category of the likes of Google, Yahoo, Facebook or Wikipedia, you should reconsider your options for using NoSQL and stick with MySQL instead. Not only is there a major skills gap with finding NoSQL professionals, but issues like analytics, performance reporting and migration also need to be considered.

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Satya Prakash

VOIP Expert: More than 8 years of experience in Asterisk Development and Call Center operation Management. Unique Combination of Skill Set as IT, Analytics and operation management.

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