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What Ways Does The Structure Of A Relational Database Assist The Easy Retrieval Of Information

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In what way does the structure of a relational database assist the easy retrieval of information?
Benefits of reducing data redundancy
Reducing data redundancy will help improve the database and it assists making data retrieval more simple and easy. Data redundancy makes the storage space needed for the database smaller as it is more efficient compared to older flat based databases which wasted space as it stored the same information in more than one field. Normalisation is what is used to design the RDBMS to split the data up into related tables and then this helps to create relationships between them which enables them to communicate with each other. The main purpose is that it helps reduce the redundancy as it integrates the …show more content…

It makes it faster and more efficient as the data only needs to be entered once. There will also be data validation rules that will help make sure the users can only enter data in the correct format. Also what helps make it faster is that there is only one database that can be linked to by many departments instead of having individual ones which would take up more storage space and wouldn’t be efficient as they have to be changed and updated individually. As in one database for the entire organisation once a piece of data has been changed it will then be updated throughout.

Efficient updating
Efficient updating is done because the data only has to be entered once and after it has been changed in one place it will then be updated. Having one database is more efficient as you can update multiple items at one location, where if you had the older type you could have many databases that you would have to go through one at a time and then change and update the data. This would take more time to complete and also it could cost more money as it takes more storage space to store multiple databases where they could still have the same data but repeated so this could be combined into one database that can be used by the entire organisation.
Sorting
Data redundancy helps with the sorting of data because it has reduced the chances of errors by using data integrity rules such as validation rules and applying the right

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