This document compares SQL and NoSQL databases. It defines databases, describes different types including relational and NoSQL, and explains key differences between SQL and NoSQL in areas like scaling, modeling, and query syntax. SQL databases are better suited for projects with logical related discrete data requirements and data integrity needs, while NoSQL is more ideal for projects with unrelated, evolving data where speed and scalability are important. MongoDB is provided as an example of a NoSQL database, and the CAP theorem is introduced to explain tradeoffs in distributed systems.

1. A Comparison of Sql and NoSQL Database
Presented by-Shubham Tomar
Software Developer at Nagarro

2. Content Index-
Abstract
What is Database
Different Types of Databases
Relational Database
What is Sql
Sql Process - Architecture
Introduction-Nosql
Difference between Sql and NoSQL
Difference in their query syntax
Introduction -MongoDB
CAP Theorem
Summary
Web references

3. Abstract
NoSQL databases (either no-SQL or Not
Only SQL)
are currently a hot topic in some parts of
computing. In fact, one website lists over a
hundred different NoSQL databases.
This presentation reviews the features
common to
the NoSQL databases and compares those
features
to the features and capabilities of SQL
databases.

4. What is
Database
(DB)

5. Different Types of Databases ?
Flat File
Database
Relational
Database
Hierarchical
Database
Desktop
Database

6. Relational Database (RDBMS)

7. SQL (Structured query language)
• SQL is Structured Query Language, which is a computer
language for storing, manipulating and retrieving data stored in a
relational database.
• SQL is the standard language for Relational Database System.
All the Relational Database Management Systems (RDMS) like
MySQL, MS Access, Oracle, Sybase, Informix, Postgres and
SQL Server use SQL as their standard database language.

8. SQL Architecture

9. NOSQL (Non-Sql)
• NoSQL is a class of database management system identified by its non-adherence
to the widely used relational database management system (RDBMS) model with
its structured query language(SQL).
• NOSQL has evolved to mean Not Only SQL
• NOSQL has become prominent with the advent of web scale data and systems
created by Google, Facebook, Amazon, Twitter and others to manage data for
which SQL was not the best fit.

10. DIFFERNCE BEWTEEN SQLAND NOSQL
How Does NOSQL compare
to SQL?
While there are numerous
characteristics that
differentiate SQL and
NOSQL the two most
significant are Scaling and
Modeling.
Scaling Traditionally SQL
does not lend itself
to massively parallel
processing, which lead to
larger computers (scale up)
vs. distribution to
numerous commodity
servers, virtual machines or
cloud instances (scale out).
Modeling SQL databases
are highly normalized
and require pre-defined
data models prior to
inserting data into the
system. In contrast NOSQL
databases do not require
(although they support)
pre-defined data model(s).

11. Pictorial View of sql and nosql db

12. Difference in their query syntax

13. Data Structures and Performance Considerations
Structured vs.
Unstructured
Tables, fields, pairs vs.
unstructured text
Transactions vs.
Analytics
Federated vs. Persisted
Big Data Volume,
Variety and Velocity
Retrieval
Indexing, MapReduce,
Search, Query
Precision vs. Discovery

14. MONGODB
(Example of
NoSQL Db)

15. What is CAP Theorem ?
 The CAP theorem applies a similar type of logic to distributed systems—
namely, that a distributed system can deliver only two of three desired
characteristics: consistency, availability, and partition tolerance (the
‘C,’ ‘A’ and ‘P’ in CAP).

16. Summary
 Projects Where SQL is Ideal:
• Logical related discrete data requirements which can be identified up-front.
• Data Integrity is Essential.
• Standards-based proven technology with good developer experience and
support.
 Projects Where NOSQL is Ideal-
• Unrelated, in terminate or evolving data requirements.
Simpler or below project objectives, able to start immediately.
• Speed and scalability is imperative.

17. Web References!
• NoSQL -- Your Ultimate Guide to the Non -Relational Universe! http//nosql-database.org/links.html
• NoSQL (RDBMS)http//en.wikipedia.org/wiki/NoSQL
• PODC Keynote, July 19, 2000. Towards Robust.
Distributed Systems. Dr. Eric A. Brewer.
Professor, UC Berkeley. Co-Founder Chief
Scientist, Inktomi .www.eecs.berkeley.edu/brewer/cs262b-2004/PODC-keynote.pdf
• Brewer's CAP Theorem posted by Julian Browne,
January 11, 2009. http//www.julianbrowne.com/article/viewer/brewers-cap-theorem
• How to write a CV Geek Poke Cartoon
http//geekandpoke.typepad.com/geekandpoke/2011/01/nosql.html

18. Thanks !!