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What is a primary index?
A primary index is an index whose search key also explains the sequential order of the file.
What do you mean by an execution plan? Why is it used? How will you view it? a.) An execution plan can be known as a road map which textually or graphically illustrates the dat
Write short notes on domain relational calculus The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole t
What is meant by buffer blocks and disk buffer The blocks residing temporarily in main memory are referred to as buffer blocks. The area of memory where blocks reside t
Normalize the given relation to 3NF, justifying each step
Define the Attribute Inheritance The attributes of a higher level entity set are inherited through a lower level entity set made by specialization-generalization hierarchy. Nam
What are the typical phases of query processing
Data slice explanation
One-to-one relationship: For every 1:1 relationship type R in the ER diagram including two entities E1 and E2 we take one of entities (say E1) preferably with total participatio
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
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