database management system, Computer Engineering

Assignment Help:
Consider the following instance of the Students relation, sorted by gpa.

sid name login age gpa
53831 Madayan madayan@music 11 1.8
53832 Guldu guldu@music 12 2.0
53688 Smith smith@ee 19 3.2
53666 Jones jones@cs 18 3.4
53650 Smith smith@math 19 3.8


For the purposes of this question, assume that these tuples are stored in a sorted file in the order shown. Each page can store up to three data records. So the first three tuples are on page 1, the fourth is on page 2 etc.

I. (20) Explain what the data entries in each of the following indexes contain. If the order of entries is significant, say so and explain why. For definition of terms, refer to the text.
1. An index on gpa using Alternative (1).
2. A clustered index on gpa using Alternative (2).
3. An unclustered index on name using Alternative (3).

Related Discussions:- database management system

Ict, how to become an ict enginer

how to become an ict enginer

The pre-generated selection screen, With LDB one can change the pre-generat...

With LDB one can change the pre-generated selection screen to their needs Yes with LDB one can alter the pre-generated selection screen.

Define memory read and write operation, Define Memory read and write operat...

Define Memory read and write operation The transfer of information from a memory word to outside environment is known as read operation. The transfer of new information to be k

By which except ions of type error in java are handled, Except ions of type...

Except ions of type error in JAVA are handled by? Except ions of type error in the JAVA are handled through JAVA run time environment.

Message passing model, In the message-passing model, there exists a set of ...

In the message-passing model, there exists a set of tasks that use their own local memories during computation. Multiple tasks can reside on the similar physical machine as well ac

Implementing protection with virtual memory, Implementing Protection with V...

Implementing Protection with Virtual Memory - computer architecture: To enable the operating system to implement protection in the VM system, the HW have to: I. Support at

How many words can be acquired by the word universal, How many words can be...

How many words can be acquired by arranging the letters of the word 'UNIVERSAL' in different way? In how many of them  (i)  E, R, S takes place together (ii)  No two of the

Super ascii string cost, ascii code add=2unit,replace=1unit,delete=3unit.co...

ascii code add=2unit,replace=1unit,delete=3unit.convert ascii code in minimum cost

Perfect induction, Any identity or equality in Boolean algebra, suchas de M...

Any identity or equality in Boolean algebra, suchas de Morgan's Theorem can be proved usingthe method of perfect induction. 1. All combinations of variables are written down.

Drawback of the system using disk caching, Q. Drawback of the system using ...

Q. Drawback of the system using disk caching? The main drawback of the system using disk caching is risking loss of updated information in event of machine failures like loss o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd