The main advantages of using database is fast and efficient data retrieval. Database enable user to break data into specific parts to helps you rapidly query the data in the way you requested. We take the hypermarket sales as example, the marketing manager can store the sales details of every product in related databases, in such way, the question "What is the sales of product X for the last 3 months?" can be very easy and accurate to be answered. If all the information of the thousands of product available in the supermarket recorded into a large text file, its impossible to find out the data of specific product item.
Database also allows you to set up rules to ensure the data remains consistent and up-to-date when you modified it. You can set a unique ID for each of every product (unique identifier) so that all the product won't get mixed up, or else, telling the sales data of a product becomes impossible. A properly set-up database makes work efficiency and minimizes data redundancy.
Modified from : http://e-articles.info/e/a/title/Why-and-When-to-Use-a-Database/
No comments:
Post a Comment