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What is vertical fragmentation?
Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
Describe identifying relationship? Identifying relationship: It is relationship among strong entity and a weak entity it is represented through a doubly outlined diamond in C
What is meant by functional dependencies? Consider a relation schema R and α C R and β C R. The functional dependency α ->β holds on relational schema R if in any legal relati
Probelm: a) In the context of OODBMS, define the following terms with appropriate examples. (i) Object class. (ii) Abstract class. (iii) Aggregation. (iv)
Make SQL statements for the following scenarios. Your response should contain SQL statement, output and any other assumptions you have made to arrive at the answer. For Colorado cu
What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
Scenario 1: Power goes out after the first instruction. What happens?
Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
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