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The Logical DBMS Architecture
Database Management Systems are very difficult, sophisticated software applications that give reliable management of huge amounts of data. To explain general database concepts and the structure and capabilities of a DBMS better, the structural design of a typical database management system should be studied.
There are two dissimilar ways to look at the architecture of a DBMS: the physical DBMS architecture and the logical DBMS architecture. The physical architecture is deals with the software components that create up a DBMS while the logical architecture deals with the way data is stored and presented to users.
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
What is data model? Explain object based and record based data models? Ans: A data model is an abstract model in which describes how data is represented and accessed. (i)
In which format database schema is written ? Data base schema is written in the DDL format.
what is union compatable?
Benefits and Limitations od Data Models?
What is Management System? A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delet
What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
Critically evaluate the bulleted list of information-related items in this case study. How are each contradictory to the notion of being an information-literate knowledge worker?
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
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