Database Systems

Here are some nice links for important contents about database systems.

A nice and succinct tutorial on ERDs is as follows.

What is entity relationship diagram? – Definition from

A Quick Guide to Database Normalizing with First Normal Form (1NF)

Valuable tutorials about normalization.

Normalization in DBMS: 1NF, 2NF, 3NF and BCNF in Database

Normalization is a process of organizing the data in database to avoid data redundancy, insertion anomaly, update anomaly & deletion anomaly. Let’s

1NF, 2NF, 3NF and BCNF in Database Normalization | DBMS Tutorial | Studytonight


Here is a very nice course about database systems by MIT OCW.

Database Systems


Here is a nice course on Database management by Coursera.

Database Management Essentials – University of Colorado System | Coursera

A nice tutorial on 4NF.

Database Normalization: 4th Normal Form

Beyond Boyce-Codd normal form with 4th normal form

A nice tutorial on 5NF.

Database Normalization: 5th Normal Form and Beyond

Normal forms beyond 4th are mainly of academic interest

Fifth Normal Form (5NF) – 5NF in DBMS – 5NF in Database

Fifth Normal Form – A database is said to be in 5NF, if and only if it is in 4NF anlong with additional conditions which are explained here.

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