This document provides an introduction to non-relational (NOSQL) databases. It discusses object-based databases and storing objects in SQL databases. It also covers different NOSQL data models like Neo4j which is a graph database, and MongoDB which is a document-oriented database. The document describes some key differences between SQL and MongoDB concepts like databases, tables, collections, documents, and indexes. It provides an example of embedding documents and linking in MongoDB as an alternative to table joins in SQL.

1. NOSQL
Introduction to NOSQL databases
VAHID KHARAZI <vahid@Kharazi.net>

2. Why NOSQL?

3. OBJECT BASED DATABASES
SQL way to saving objects in database

4. An Example

5. Structured Types
 create type Name as (firstname varchar(20), lastname varchar(20))
 create type Address as (street varchar(20), city varchar(20), zipcode
varchar(20))
 Structured types can be used to create tables with composite attributes
 create table person ( name Name, address Address, dateOfBirth date)

6. NOSQL DATA MODELS
Introduction to nosql data models
VAHID KHARAZI <vahid@Kharazi.net>

7. NEO4j
A graph based DBMS

8. NEO4J DBMS

9. Cypher – the neo4j query language

10. LOCALHOST:7474
Secure the port and remote client connection accepts

11. MONGODB
A Document-Oriented DBMS

12. MONGODB DBMS

13. Document-Oriented Storage
SQL Terms/Concepts MongoDB Terms/Concepts
database database
table collection
row document or BSON document
column field
index index
table joins embedded documents and linking
primary key
Specify any unique column or column
combination as primary key.
primary key
In MongoDB, the primary key is
automatically set to the _idfield.
aggregation (e.g. group by)
aggregation framework
See the SQL to Aggregation
Framework Mapping Chart.

14. Dictionaries
 j = { name : "mongo“, family : ”Kharazi” , courses: [ database : {
instructor:’Dr Naderi’ , grade : 9.75 }, algorithm: { instructor : ‘Karimi’ ] }
 k = { x : 3 }
 db.person.insert( j )
 db.person.insert( k )
 Person is a collection

15. SQL to MongoDB Mapping Chart

16. SQL to MongoDB Mapping Chart

17. SQL to MongoDB Mapping Chart

18. SQL to MongoDB Mapping Chart