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Which method of access uses key transformation?
A Hash method of access uses key transformation.
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Using the concepts defined previous, we have identified that strong entities in COLLEGE database are FACULTY, STUDENT, COURSE and DEPARTMENT. This database also has one weak entity
What is an E-R model? Draw an E-R Diagram for the company database with following Descriptions? The company is organized within departments. Each department has a unique name a
The primary key is selected from the
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What are the advantages of by using an index and what are its disadvantages ? In difference, if the search key of a secondary index is not a candidate key, it is not sufficient
How to use Oracle
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