The document defines normalization and its purpose in reducing data redundancy and anomalies. It discusses normalization forms from 1NF to 3NF and the steps to normalize a data model, including identifying functional and transitive dependencies. The steps are to remove repeating groups, handle partial dependencies, and eliminate transitive dependencies to create tables in 3NF. Examples show functional dependencies determine a unique relationship between attributes.

1. CHAPTER 6 NORMALIZATION

6. Relation Schema?

8. Table 6-6 The BOOK Table ccccccc ccccccc No 80.00 Graphic M-G1 Graphic Design P08 44444 44444 No 88.00 Multimedia M-G1 Adobe Illustrator 10 P07 33333 33333 No 40.00 Pengetahuan Am F-B1 Pengajian Malaysia P06 22222 22222 No 69.00 Database T-H1 Database Processing P05 11111 11111 No 59.00 Database T-H1 Microsoft Access 2000 Complete P04 zzzzz zzzzz No 100.00 Database P-H1 Concepts of Database Management System P03 yyyyy yyyyy No 80.00 Database M-G1 Teach Yourself Microsoft Access 2000 Visually P02 xxxxx xxxxx Yes 76.00 Database M-G1 Access 2000 Processing P01 Book_Cover Book_ Sample Price Type Publisher_Code Book_Title Book_ Code

11. MODIFICATION ANOMALIES Table 6-7 STUDENT_COURSE Table Diploma in Computer Graphic and Design. DIPCGR Jalan Puchong Syed Ahmad Rizal B. Syed Abdul Razak S0035 Computer Power 200 (Graphic and Multimedia) CGMP200 Tmn. Melawati Aidil Akmar Hj. Ayob S0159 Computer power 100 (IT) CITP100 Tmn. Koperasi Polis Nurazean Bt. Md. Sobri S0157 Computer Power 200 (Graphic and Multimedia) CGMP200 Bandar Baru Bangi Amjadi Abd. Mubin S0149 Associate Diploma in Interactive Multimedia ASDIM Jln. Kg. Gajah Hamizah Mohamed Redzwan S0144 Course_Name Course_ Code Address Student_Name Student_ID

14. INSERT ANOMALIES

17. DELETE ANOMALIES

22. INFORMATION REDUNDANCIES The STUDENT_SUBJECT Table The SUBJECT Table The STUDENT Table Jalan Puchong Syed Ahmad Rizal B. Syed Abdul Razak S0035 Tmn. Melawati Aidil Akmar Hj. Ayob S0159 Tmn. Koperasi Polis Norazean Bt Md Sobri S0157 Bandar Baru Bangi Amjadi Abd Mubin S0149 Jln. Kg. Gajah Hamizah Mohamed Redzwan S0144 Address Student_Name Student_ID ADM101 S0035 ADM301 S0159 ADM101 S0157 ADM101 S0149 ACT410 S0144 Subject _code Student_ID 4 Project ADM301 4 Internet Publishing ADM101 4 Computerized Accounting ACT410 Credit_hour Subject_name Subject_code

25. Relational Schema: STUDENT ( Stud_ID , Stud_Name, Address, Course_Code) Table 6‑20 The STUDENT Table (NF) Relational Schema: SUBJECT ( Subject_Code , Subject_Name, Credit_Hours) Table 6‑21 The SUBJECT Table (NF) Relational Schema: STUDENT_GRADE ( Student_ID , Subject_Code , Grade) Table 6‑22 The STUDENT_GRADE Table (NF) Relational Schema: COURSE ( Course_Code , Course_Name,Coordinator) Table 6‑23 The COURSE Table (NF) ADIM Shah Alam Maslina Yakub S0151 DCGD Shah Alam Amirul Hamdan S0144 DIT Sentul Azlina Ahmad S0001 Course_Code Address Stud_Name Stud_ID 4 Graphic Design Application ART210 4 Internet Publishing QDM101 4 Business Organization BUS210 2 Introduction to graphic Design ART230 4 Promotion Design ART410 4 Graphic Communication ART310 4 Computerized Accounting, ACT410 Credit_Hours Subject_Name Subject_Code A BUS210 S0151 A ART 210 S0151 C ART410 S0151 B BUS210 S0144 B ART230 S0144 A ART310 S0144 C ART210 S0001 B ADM101 S0001 A ACT410 S0001 Grade Subject_Code Student_ID Sahada Associate Diploma in Interactive Multimedia ADIM Ahmad Diploma in Computer Graphic Design DCGD Fazilah Diploma in Information Technology DIT Coordinator Course_Name Course_Code

27. NORMALIZED FORM (NF) Relational Schema: CUSTOMER ( Cust_No , Cust_Name, Address) Table 6‑25 The CUSTOMER Table (NF) Relational Schema: INVOICE ( Cust_No , Item_Code , Qty) Table 6‑26 The INVOICE Table (NF) Relational Schema: ITEM ( Item_Code , Item_desc, Price, Supplier) Table 6‑27 The ITEM Table (NF) Relational Schema: SUPPLIER ( Supplier , Supplier_address) Table 6‑28 The SUPPLIER Table (NF) Ampang Rani A102 Ampang Salmah A101 Sentul Abu A100 Address Cust_Name Cust_No 4 2 2 MS112 CP200 VG400 A102 A102 A102 10 10 5 HD200 KB100 SP360 A101 A101 A101 10 10 5 HD200 KB100 SP360 A101 A101 A101 20 10 2 KB100 CP200 MS112 A100 A100 A100 Qty Item_Code Cust_No XYZ Ent. 200 VGA Card VG400 XYZ Ent. 650 CPU CP200 XYZ Ent. 45 Speaker SP360 XYZ Ent. 15 Mouse MS112 Seagate 100 Hard Disc HD200 XYZ Ent. 25 Keyboard KB100 Supplier Price Item_desc Item_Code Pulau Pinang Seagate Petaling Jaya XYZ Ent. Supplier_address Supplier

28. LEVEL OF NORMALIZATION No repeating groups of data in the table No partial functional dependancy No transitive dependancy

34. Relational Schema: STUDENT ( Student_ID , Student_Name , Subject_Code, Grade, Address, Course, Coordinator) Relational Schema: SUBJECT ( Subject_Code , Subject_Name, Credit_Hour) STUDENT SUBJECT Sahada Rahman Associate Diploma in Interactive Multimedia Shah Alam A BUS210 Mazlina Yakub S0151 Sahada Rahman Associate Diploma in Interactive Multimedia Shah Alam A ART 210 Mazlina Yakub S0151 Sahada Rahman Associate Diploma in Interactive Multimedia Shah Alam C ART410 Mazlina Yakub S0151 Ahmad Razak Diploma in Computer Graphic Design Shah Alam B BUS210 Amirul Hamdan S0144 Ahmad Razak Diploma in Computer Graphic Design Shah Alam B ART230 Amirul Hamdan S0144 Ahmad Razak Diploma in Computer Graphic Design Shah Alam A ART310 Amirul Hamdan S0144 Fazilah Musa Diploma in Information Technology Sentul C ART210 Azlina Ahmad S0001 Fazilah Musa Diploma in Information Technology Sentul B ADM101 Azlina Ahmad S0001 Fazilah Musa Diploma in Information Technology Sentul A ACT410 Azlina Ahmad S0001 Coordinator Course Address Grade Subject_Code Student_Name Student ID 4 Promotion Design ART410 4 Business Organization. BUS210 2 Introduction to graphic Design ART230 4 Graphic Communication ART310 4 Graphic Design Application ART210 4 Internet Publishing QDM101 4 Computerised Accounting ACT410 Credit_Hour Subject_Name Subject_Code

36. Relational Schema: STUDENT ( Student_ID , Student_Name, Address, Course, Coordinator) Relational Schema: SUBJECT( Subject_Code , Subject_Name, Credit_Hours) Table 6‑33 The SUBJECT Table (2NF) Relational Schema: STUDENT_GRADE ( Student_ID , Subject_Code , Grade) Table 6‑34 The STUDENT_GRADE Table (2NF) Sahada Associate Diploma in Interactive Multimedia Shah Alam Mazlina Yakub S0151 Ahmad Diploma in Computer Graphic Design Shah Alam Amirul Hamdan S0144 Fazilah Diploma in Information Technology Sentul Azlina Ahmad S0001 Coordinator Course Address Student_Name Student_ID 4 Promotion Design ART410 4 Business Organization. BUS210 2 Introduction to graphic Design ART230 4 Graphic Communication ART310 4 graphic Design Application ART210 4 Internet Publishing QDM101 4 Computerised Accounting ACT410 Credit_Hours Subject_Name Subject_Code A BUS210 S0151 A ART210 S0151 C ART410 S0151 B BUS210 S0144 B ART230 S0144 A ART310 S0144 C ART210 S0001 B QDM101 S0001 A ACT410 S0001 Grade Subject_Code Student_ID

39. Relational Schema: STUDENT (Student_ID, Student_Name, Address,Course) Table 6‑35 The STDENT Table (3NF) Relational Schema: SUBJECT( Subject_Code , Subject_Name, Credit_Hours) Table 6‑36 The SUBJECT Table (3NF) Relational Schema: COURSE ( Course , Coordinator) Table 6‑37 The COURSE Table (3NF) Relational Schema: STUDENT_GRADE ( Student_ID , Subject_Code , Grade) Table 6‑38 The STUDENT_GRADE Table (3NF) Associate Diploma in Interactive Multimedia Shah Alam Mazlina Yakub S0151 Diploma in Computer Graphic Design Shah Alam Amirul Hamdan S0144 Diploma in Information Technology Sentul Azlina Ahmad S0001 Course Address Student_Name Student_ID 4 Graphic Design Application ART210 4 Internet Publishing QDM101 4 Business Organization BUS210 2 Introduction to graphic Design ART230 4 Promotion Design ART410 4 Graphic Communication ART310 4 Computerised Accounting, ACT410 Credit_Hours Subject_Name Subject_Code Sahada Associate Diploma in Interactive Multimedia Ahmad Diploma in Computer Graphic Design Fazilah Diploma in Information Technology Coordinator Course A BUS210 S0151 A ART 210 S0151 C ART410 S0151 B BUS210 S0144 B ART230 S0144 A ART310 S0144 C ART210 S0001 B ADM101 S0001 A ACT410 S0001 Grade Subject_Code Student_ID