So changes to the structure of a file may require changing of all programs that access the file. But in case of database approach the structure of the database is stored separately in the Fax Number List catalog from the access of the application programs. This property is known as program-data independence. Database can be used to provide persistent storage for program objects and data Fax Number List that resulted in object oriented database approach. Traditional systems suffered from impedance mismatch problem and difficulty in accessing the data, which is avoided in object oriented database system.
Database can be used to represent complex relationships among data's Fax Number List as well as to retrieve and update related data easily and efficiently. It is possible to define and enforce integrity constraints for the data's stored in the database. The database also provides facilities for recovering hardware and software failures. The backup and recovery subsystem is Fax Number List responsible for recovery. It reduces the application development Fax Number List time considerably when compared to the file system approach and availability of up-to-date information of all the users.
It also provides security to the data's stored in the database system. Fax Number List A database is basically a system for storing multiple items of information on a Fax Number List computer but how many of these have your details stored? I think you will be shocked to discover that your particulars are likely to be on hundreds of databases. The most common use of the information stored on a database is for cold calling sales.