DATABASE ABSTRACTION LAYER

Abstract

Competition between producing companies RDBMS led to the difference in the SQL commands, making the programs work on a certain number of databases. The project goal is to make the programs work with many database, and do not need to learn to syntax of SQL. Since we were able to possible through building a library to develop software, which works as a layer between the program and the database, so the software will choose the process that wants to have with the database, and the class composition of the appropriate syntax of the database. In the end, through the library we have the capability to deal with three types of data bases easily, and the library provide security on the database, and make the developers are able to build programs dealing with the database without having to refer to syntax of SQL Standard.