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  • 1.  (Relational schema) (Normal form) Normalization Dr. Edgar Frank Codd (E. F. Codd)  (Primary key) (Candidate key) (Functional Dependency)
  • 2.  (Data Redundancy) ◦ (Data Inconsistency) ◦
  • 3. OID ODate CID CName ISBN BName QtyB-0000001 15/1/2555 C0001 ISBN-00001B-0000001 15/1/2555 C0001 ISBN-00002B-0000002 15/1/2555 C0003 ISBN-00001B-0000003 21/1/2555 C0001 ISBN-00002B-0000003 21/1/2555 C0001 ISBN-00003B-0000005 2/2/2555 C0007 ISBN-00001B-0000005 2/2/2555 C0007 ISBN-00002
  • 4.  Table Anomaly Insert Anomaly Update Anomaly Delete Anomaly
  • 5. ISBN- OID ODate CID CName ISBN 00009 BName QtyB-0000001 15/1/2555 C0001 ISBN-00001B-0000001 15/1/2555 C0001 ISBN-00002B-0000002 15/1/2555 C0003 ISBN-00001B-0000003 21/1/2555 C0001 ISBN-00002B-0000003 21/1/2555 C0001 ISBN-00003B-0000005 2/2/2555 C0007 ISBN-00001B-0000005 2/2/2555 C0007 ISBN-00002B-0000005 2/2/2555 C0007 ISBN-00004
  • 6. OID ODate CID CName ISBN BName QtyB-0000001 15/1/2555 C0001 ISBN-00001B-0000001 15/1/2555 C0001 ISBN-00002B-0000002 15/1/2555 C0003 ISBN-00001B-0000003 21/1/2555 C0001 ISBN-00002B-0000003 21/1/2555 C0001 ISBN-00003B-0000005 2/2/2555 C0007 ISBN-00001B-0000005 2/2/2555 C0007 ISBN-00002B-0000005 2/2/2555 C0007 ISBN-00004
  • 7. OID ODate CID CName ISBN BName QtyB-0000001 15/1/2555 C0001 ISBN-00001B-0000001 15/1/2555 C0001 ISBN-00002B-0000002 15/1/2555 C0003 ISBN-00001B-0000003 21/1/2555 C0001 ISBN-00002B-0000003 21/1/2555 C0001 ISBN-00003B-0000005 2/2/2555 C0007 ISBN-00001B-0000005 2/2/2555 C0007 ISBN-00002B-0000005 2/2/2555 C0007 ISBN-00004
  • 8. OID ODate CID CName ISBN BName QtyB-0000001 15/1/2555 C0001 ISBN-00001B-0000001 15/1/2555 C0001 ISBN-00002B-0000002 15/1/2555 C0003 ISBN-00001B-0000003 21/1/2555 C0001 ISBN-00002B-0000003 21/1/2555 C0001 ISBN-00003B-0000005 2/2/2555 C0007 ISBN-00001B-0000005 2/2/2555 C0007 ISBN-00002B-0000005 2/2/2555 C0007 ISBN-00004
  • 9. OID ISBN CID ODate CName BName QtyOID ISBN CID ODate CName QtyISBN BName
  • 10. OID ISBN ODate CID CName QtyB-0000001 ISBN-00001 15/1/2555 C0001B-0000001 ISBN-00002 15/1/2555 C0001B-0000002 ISBN-00001 15/1/2555 C0003B-0000003 ISBN-00002 21/1/2555 C0001B-0000003 ISBN-00003 21/1/2555 C0001B-0000005 ISBN-00001 2/2/2555 C0007B-0000005 ISBN-00002 2/2/2555 C0007B-0000005 ISBN-00004 2/2/2555 C0007B-0000005 ISBN-00007 2/2/2555 C0007B-0000005 ISBN-00008 2/2/2555 C0007
  • 11. ISBN BNameISBN-00001ISBN-00002ISBN-00003ISBN-00004ISBN-00007ISBN-00008
  • 12. OID ISBN ODate CID CName QtyB-0000001 ISBN-00001 15/1/2555 C0001B-0000001 ISBN-00002 15/1/2555 C0001B-0000002 ISBN-00001 15/1/2555 C0003B-0000003 ISBN-00002 21/1/2555 C0001B-0000003 ISBN-00003 21/1/2555 C0001B-0000005 ISBN-00001 2/2/2555 C0007B-0000005 ISBN-00002 2/2/2555 C0007B-0000005 ISBN-00004 2/2/2555 C0007B-0000005 ISBN-00007 2/2/2555 C0007B-0000005 ISBN-00008 2/2/2555 C0007
  • 13. OID ISBN ODate CID QtyB-0000001 ISBN-00001 15/1/2555 C0001B-0000001 ISBN-00002 15/1/2555 C0001B-0000002 ISBN-00001 15/1/2555 C0003B-0000003 ISBN-00002 21/1/2555 C0001B-0000003 ISBN-00003 21/1/2555 C0001B-0000005 ISBN-00001 2/2/2555 C0007B-0000005 ISBN-00002 2/2/2555 C0007B-0000005 ISBN-00004 2/2/2555 C0007B-0000005 ISBN-00007 2/2/2555 C0007B-0000005 ISBN-00008 2/2/2555 C0007
  • 14. CID CNameC0001C0003C0007