by admin | Jun 19, 2015 | sem3
Data models Data models define how the logical structure of a database is modeled. Data Models are fundamental entities to introduce abstraction in a DBMS. Data models define how data is connected to each other and how they are processed and stored inside the system....
by admin | Jun 19, 2015 | sem3
Relational Algebra Relational database systems are expected to be equipped with a query language that can assist its users to query the database instances. There are two kinds of query languages − relational algebra and relational calculus. Relational Algebra...
by admin | Jun 19, 2015 | sem3
Components of dbms A typical structure of components of DBMS and relationships between them is show. The DBMS software is partitioned into several modules. Each module or component is assigned a specific operation to perform. Some of the functions of the DBMS are...
