To reduce the repeated, stacking of data (Minimal Data Redundancy) to store the data in a file. Do
may give information of the same stored several. Of it causes the left, stacking of
.The information up, so this information is kept in, including data base system will help reduce the problem of SOM Make
stacked data to avoid the conflict of data (Consistency of Data) data storage ในลัษ restored a
.The file data is the same, which may exist in the file. The conflict of B
Mu om up. This may be due to the data file of one. But not edit information about
.The same in other files. Make such information Different
limited error in the input to a minimum (Data Integrity) sometimes mistakes
.Of information may occur from entering invalid login so in management system
databases, it may need. Define rules to get the data from the problems of users to maintain
.The accuracy of the information as much as possible. It
plants can share information (Sharing of Data) due to a database storage
.In the same place. When a user wants to run the data from the data file is different. It can. Be
easily
plants can, given the same standards. (Enforcement of Standard) data
.Together will be able to, regulate and control the standards of information as to the direction the same
, therefore, to make the system more confidence
can determine the security of the data (Security and Privacy Control)
.Since the system is normal, with regulate the level of each user, according to al the order concentrated of the user as it
can control and supervise the security of data within the system better
.Data independence (Data Independence) database system will apply functions as link
with applications where, and works with information directly. Data editing, such as to change the
.The zip code number is the number of 4 main main 5 will, editing the data is the post code ณ๊ array
เฉพาะโปรแกรม run postal code. The other programs are free to
change.
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