![]() ![]() This description is also known as a schema. For a given database, there is a structural description of the type of records of data held in that database. ![]() The core concept of a database is that of a collection of records. DBMS is the computer program or software package used to administer, query a database and also import /export to and from different data formats.Įxamples of DBMS: Relational databases : SQL Server or Oracle, Desktop databases : MS Access or Lotus access. Using query language, data can be retrieved which can be used to make decisions. In computing, a database is defined as a structured collection of records or data. A phone book is also a database usually organized alphabetically by surname. Ledgers, sales, payments, or any other non monetary records also can be called as a database. One is the Business Layer, Data Layer and Presentation Layer.ĭatabase refers to the records kept or maintained with an intention to use it at a later date. Any database software application has a minimum of three layers. The partitioning of the software into layers is the first step in designing a successful database software application. ![]() This necessity has resulted in two tier, three tier, n-tier applications. It has become also necessary to partition applications depending on the responsibilities. From being single user desktop applications, database software applications are now sophisticated software which run on a network or networks. The evolution of a database software application is interesting and is useful for developers. C#, VB, dBASE (in its present avatar) and Delphi can be thought of as good examples of RAD tools. A RAD tool enables quick development of database software applications by providing drag and drop functionality to build database software. Whenever we discuss database software application, we need to mention RAD software tools which stands for Rapid Application Development tools. RDBMS enable manipulation of information stored in a Database, using SQL Statements. The RDBMS is the core part of a database software application and holds all data. Invariably, a database software application includes an RDBMS like Oracle, SQL Server or SYBASE. Web services in many ways blur the distinction between windows application and web application and this because windows applications can also access web for services. A multi user application works on a LAN (local area network) and a web application works on a distant server and accessed by a browser. To know how to develop a components based or 3 tier application, read Database programming using visual basic, c# (c sharp) sql serverĪ database software application can be developed as a single user desktop application, a multi user network version or a web application. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |