Define Normalization with example?



Define Normalization with example?..

Answer / babu vincent

Normalization:
normalization is used to reduce the repetition..
for example if a table contains a column repeating same datatype and for same purpose..
look at simple example a item purchased of a customer may contain many which also include separate prices so instead of creating repeated column for each item and price.. one table is created with one column for item name and one for column name.. then relationship(one to many) can be created and records in item table can be connected with cstomer table which includes order no as primary key..

Is This Answer Correct ?    6 Yes 4 No

Post New Answer

More Oracle General Interview Questions

How to count duplicated values in a column in oracle?

0 Answers  


What is the maximum limit on the number of columns in a table?

0 Answers  


What operating systems are supported by oracle database 10g xe?

0 Answers  


How do you rate yourself in oracle and sql server ?

2 Answers   Keane India Ltd,


What are various constraints used in SQL?

1 Answers   Polaris,






what is difference between cartesian join & cross join even they give same result?

4 Answers   Bank Of America,


How to convert numbers to characters in oracle?

0 Answers  


7. Repeat query (7) but also display all clients who have never ordered anything.

1 Answers   Wipro,


Difference between pre-select and pre-query

0 Answers  


How to use "out" parameter properly?

0 Answers  


what is null value?

11 Answers   KITS, Oracle,


Can we create more than one constraint to column ?

6 Answers  


Categories
  • Oracle General Interview Questions Oracle General (1789)
  • Oracle DBA (Database Administration) Interview Questions Oracle DBA (Database Administration) (261)
  • Oracle Call Interface (OCI) Interview Questions Oracle Call Interface (OCI) (10)
  • Oracle Architecture Interview Questions Oracle Architecture (90)
  • Oracle Security Interview Questions Oracle Security (38)
  • Oracle Forms Reports Interview Questions Oracle Forms Reports (510)
  • Oracle Data Integrator (ODI) Interview Questions Oracle Data Integrator (ODI) (120)
  • Oracle ETL Interview Questions Oracle ETL (15)
  • Oracle RAC Interview Questions Oracle RAC (93)
  • Oracle D2K Interview Questions Oracle D2K (72)
  • Oracle AllOther Interview Questions Oracle AllOther (241)