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Define database management system?
Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
Consider the E/R schema with weak entity sets shown below. Come up with the SQL CREATE TABLE statements (with appropriate primary key, unique and foreign key constraints). Include
What is called an evaluation primitive? A relational algebra operation annotated with instructions on how to evaluate is known as an evaluation primitive.
Discuss how the one-to-one associations have to be implemented. Some of properties of associations can be implemented directly by providing suitable declarations of the data me
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
a. Define the term "deadlock". There are four conditions that must hold before deadlock is possible. Name them. b. Outline an algorithm that detects whether there is a deadlock.
Explain nested relations? Nested relations The assumption of INF is a natural one in the bank examples we have considered. However, not all applications are best modelled
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
explain in details about one to one binary relationship
please describe the data base management with the easy example &give the application?
Describe the storage structure of indexed sequential files and their access method. Ans: Storage structure of Indexed Sequential files and their access: To achieve fast rand
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