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To do the division operation R1 ÷ R2, R2 should be a correct subset of R1. In the following example R1 have attributes A and B and R2 have only attribute B so R2 is a correct subse
how to implement hyrise in C plus plus
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
What is advantage of two-way association? Two-way association advantages are following: a) Independent of the classes. b) Useful for existing predefined classes that are
How can you map NULL values to other values while display? IF( ) , IFNULL( ) keywords are used to do so. They are 'LIMIT' is used for the following kinds of problems: 1) Ans
What is the main goal of RAID technology? Describe the levels 1 through 5. RAID stands for Redundant Array of Inexpensive (or sometimes "Independent")Disks. RAID is a met
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
Views A view is like a window by which data from tables can be changed or viewed. The table on which a view is based is known as Base table. The view is stored as a SELECT stat
Types of Data fragmentation
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