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What is a SELECT operation?
The select operation selects tuples that please a given predicate. We use the lowercase letter σ to denote selection.
Write a query that display ename annual salary and comm from emp table
XYZ is a large chain of home entertainment rental over 100 stores distributed over all states in Australia. XYZ lends entertainment products such as movies, TV shows and games on v
Differance between DDL and SDL? DDL and SDL - The data definition language (DDL) is used through DBA and database designers to describe internal schema, conceptual schema, and
Let us first describe the term relationships. What Are Relationships? A relationship can be defined as: A set of associations or connection, or A rule for communic
what is correlation in nested query
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
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
define attribute inheritance with example?
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
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