Understanding Database
1. database is a data structure that stores organized information. Most databases contain multiple tables, which may each include several different fields. For example, a company database, and financial record. Each of these tables would have different fields that are relevant to the information stored in the table.
2. advantages of database
1. Reduced data redundancy
2. Reduced updating errors and increased consistency
3. Greater data integrity and independence from applications programs
4. Improved data access to users through use of host and query language
5. Improve data security
6. Reduced data entry, storage, and retrieval costs
7. Facilitated development of new application program
3. database may allow different view:
1. External view is the view of the data used by customers or people who input and view data
2. Conceptual view is useful for the database designer
3. Internal view is used for the detailed programming of the database
4. name of different access levels
1. Customer
2. Administrators
3. Account managers
2. advantages of database
1. Reduced data redundancy
2. Reduced updating errors and increased consistency
3. Greater data integrity and independence from applications programs
4. Improved data access to users through use of host and query language
5. Improve data security
6. Reduced data entry, storage, and retrieval costs
7. Facilitated development of new application program
3. database may allow different view:
1. External view is the view of the data used by customers or people who input and view data
2. Conceptual view is useful for the database designer
3. Internal view is used for the detailed programming of the database
4. name of different access levels
1. Customer
2. Administrators
3. Account managers
Good start, you have explained the theory of the database consents above. You will now need to think about how you would like to structure your databases with your e-commerce website (product inventory database and a customer database.)
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