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DBMS

Hierarchial database model

Hierarchical Database Model

Hierarchical database model The hierarchical data model organizes data in a tree structure. There is a hierarchy of parent and child data segments. This structure implies that a record can have repeating information, generally in the child data segments. Data is in a series of records, which has a set …

Relational Database Model

Relational Database Model

Relational database model The relational model is today the primary data model for commercial data processing applications. It has attained its primary position because of its simplicity, which eases the job of the programmer, as compared to earlier data models such as the network model or the hierarchical model. A …

Database Management System (DBMS)

What is Database Management System?   A   database   management   system   (DBMS)   consists   of   a collection of interrelated data and a set of program to access those data. The collection of data, usually referred to as the database, contains information about one particular    enterprise.    The   primary   goal   of   DBMS   is   to …

Database – Data and Information

What is Database?   A Database is a repository for collection of related data or facts stored so that it is available …