YouTube Link: https://youtu.be/ABwD8IYByfk ** MySQL DBA Certification Training: https://www.edureka.co/mysql-dba ** This Edureka PPT on 'What is Normalization' will help you understand the basic concepts of Normalization in SQL and Databases and how it helps in organizing data and data redundancy in SQL with examples. Follow us to never miss an update in the future. YouTube: https://www.youtube.com/user/edurekaIN Instagram: https://www.instagram.com/edureka_learning/ Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka Castbox: https://castbox.fm/networks/505?country=in

2. • WHAT IS NORMALIZATION?
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• 1ST NORMAL FORM (1NF)
• 2ND NORMAL FORM (2NF)
• 3RD NORMAL FORM (3NF)
• BOYCE-CODD NORMAL FORM (BCNF)

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4. WHAT IS NORMALIZATION?
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Processes of reducing the
redundancy of Data
Improves the Data Integrity

5. DATA ANOMALIES
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INSERTION UPDATION DELETION

6. TYPES OF NORMAL FORM
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FIRST NORMAL FORM
SECOND NORMAL FORM
THIRD NORMAL FORM
BOYCE-CODD NORMAL FORM
1NF
2NF
3NF
BCNF

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8. 1ST NORMAL
FORM
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NORMALIZATION
Removes repeating groups from the table
Create a separate table for each set of
related data
Identify each set of related data with a
primary key

9. 1 NF EXAMPLE
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10. 1 NF EXAMPLE
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12. 2nd NORMAL
FORM
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NORMALIZATION
It has to be in 1st Normal Form
Table also should not contain partial
dependency

13. 2 NF EXAMPLE
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14. 2 NF EXAMPLE
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16. 3rd NORMAL
FORM
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NORMALIZATION
It has to be in 2nd Normal Form
There should be no transitive dependency
for non-prime attributes

17. 3 NF EXAMPLE
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18. 3 NF EXAMPLE
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19. 3 NF EXAMPLE
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20. 3 NF EXAMPLE
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21. 3 NF EXAMPLE
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22. Boyce Codd NORMAL FORM (BCNF)
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23. BC NORMAL
FORM
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NORMALIZATION
It has to be in 3rd Normal Form
Higher version 3NF and was developed by
Raymond F. Boyce and Edgar F. Codd
Every functional dependency A → B, then
A has to be the Super Key of that
particular table

24. BCNF EXAMPLE
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Student ID
1DT15ENG01
1DT15ENG02
1DT15ENG02
1DT15ENG03
1DT15ENG04
Subject
SQL
JAVA
C++
JAVA
DBMS
Professor
Prof. Mishra
Prof. Anand
Prof. Kanthi
Prof. Anand
Prof. Lokesh

25. BCNF EXAMPLE
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Student ID
1DT15ENG01
1DT15ENG02
1DT15ENG02
1DT15ENG03
1DT15ENG04
Subject
SQL
JAVA
C++
JAVA
DBMS
Professor
Prof. Mishra
Prof. Anand
Prof. Kanthi
Prof. Anand
Prof. Lokesh

26. BCNF EXAMPLE
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Student ID
1DT15ENG01
1DT15ENG02
1DT15ENG02
1DT15ENG03
1DT15ENG04
Subject
SQL
JAVA
C++
JAVA
DBMS
Professor
Prof. Mishra
Prof. Anand
Prof. Kanthi
Prof. Anand
Prof. Lokesh
Professor ID
1DTPF01
1DTPF02
1DTPF03
1DTPF02
1DTPF04
Professor ID
1DTPF01
1DTPF02
1DTPF03
1DTPF02
1DTPF04

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