Normalization is the method used in a database to reduce the data redundancy and data inconsistency from the table. It is the technique in which Non-redundancy and consistency data are stored in the set schema. By using normalization the number of tables is increased instead of decreased.
Denormalization is also the method which is used in a database. It is used to add the redundancy to execute the query quickly. It is a technique in which data are combined to execute the query quickly. By using denormalization the number of tables is decreased which oppose to the normalization.
Difference between Normalization and Denormalization:
|1.||In normalization, Non-redundancy and consistency data are stored in set schema.||In denormalization, data are combined to execute the query quickly.|
|2.||In normalization, Data redundancy and inconsistency is reduced.||In denormalization, redundancy is added for quick execution of queries.|
|3.||Data integrity is maintained in normalization.||Data integrity is not maintained in denormalization.|
|4.||In normalization, redundancy is reduced or eliminated.||In denormalization redundancy is added instead of reduction or elimination of redundancy.|
|5.||Number of tables in normalization is increased.||Denormalization, Number of tables in decreased.|
|6.||Normalization optimize the uses of disk spaces.||Denormalization do not optimize the disk spaces.|
- Denormalization in Databases
- Introduction of Database Normalization
- Difference between Blu-ray and DVD
- Difference between CLI and GUI
- Difference between MAN and WAN
- Difference between LAN, MAN and WAN
- Difference between CPU and GPU
- Difference between 1G and 2G
- Difference between CD and DVD
- Difference between H.323 and SIP
- Difference between TDM and FDM
- Difference Between SEO and SEM
- Difference between LAN and WAN
- Difference Between BFS and DFS
- Web 1.0, Web 2.0 and Web 3.0 with their difference
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to firstname.lastname@example.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.
Improved By : subhradeep2601