2.2.4 the usefulness of data. Data storage is a database, instead of storing a small file split according to each job is causing many advantages as follows: 2.2.4.1 reduce the complexity of the data (Reduce Redundancy), because the data is stored as a single source, embodied not by isolation of machinery scattered storage it reduces storage problems, which need to waste time on data entry and storage space that repeatedly, as well as reduce backup costs. 2.2.4.2 a conflict mitigation (Reduce Inconsistence)The information store as a file smaller in various places on each job. When the data has been adjusted not to delete the information. Add or edit the information will all be done otherwise would cause conflicting data problems occurred. For example, when a document Drawing. disable document information will be deleted from the data file. 2.2.4.3 there independence between programs and data are stored in the data file is created by the computer language, will have a file structure that adhere to the format of the program that created it lacks independence continued to improve because of the need to develop the language preference.Khiyon program of the language files are stored in the database, but the management is done through the database management system or DBMS, which compared Interlingua in contact can develop with the language or any other program that supports the standard language of the SQL language, database systems, they will be able to contact and be able to manage all the data in a database. 2.2.4.4 reduces the problem to update the data structure in the development of the program in the same system, if there is a change in the data structure, such as adding headers or change the type of data stored will cause problems or risks may lead to damage of the system-wide information. In addition, such action must be done programmatically for each new administration time and costs quite a lot. In such a way to use the database system will be able to do it instantly, just order through DBMS without consequences or risks associated with data storage. 2.2.4.5 a reliability database management system DBMS is the ability to validate the data entered by the storage condition is defined as, for example, requires that the input letters or numbers only, or to enter data in the interval that determines if a user enters invalid data, the DBMS system conditions rejected it without storage and send alerts to the user aware of until they enter a correct value according to the terms defined. 2.2.4.6 the information generated in the database, the standard can be applied widely, for example, in addition to use within an organization, it can also be used in the Internet system by long slip that benefit both current and future use. 2.2.4.7 is the security system of the database to get a casing system DBMS disasters will be able to assign rights to access and store information of each user is different, so helps prevent changes to the information, or any action which may cause damage to data from intruders, or who do not have the right to.
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