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

Define the vbscript basics, VBScript is an easy and powerful to learn tool ...

VBScript is an easy and powerful to learn tool which can be used to add interaction to your Web pages. Web browser receives scripts along with rest of the Web document. Browser par

Use of hypertext links in internet access, Use of Hypertext links in Intern...

Use of Hypertext links in Internet access From the user's point of view, the Web having of a vast, worldwide collection of documents i.e. pages. Every page may have links (poin

What are the disadvantages of a smart card, What are the disadvantages of a...

What are the disadvantages of a Smart Card? Disadvantages of Smart Cards are as follows: a. The value of money can be depleted and recharged. b. Customers should keep

Differentiate traditional commerce and electronics commerce, Differentiate ...

Differentiate Traditional Commerce verses Electronics Commerce. Identity: Into traditional commerce customers can simply authenticate the identity of a merchant simply throug

How can we draw a circle with gimp, Ans) The simplest way is to make a new ...

Ans) The simplest way is to make a new selection with Ellipse Select tool and stroke it (Edit -> Stroke Selection...). We welcome patches that add tools to draw geometric primitive

Vector-vector instructions-vector processing, Vector-Vector Instructions ...

Vector-Vector Instructions In this type, vector operands are fetched by the vector register and saved in another vector register. These instructions are indicated with the foll

Era of first generation computers, Q. Era of first generation computers? ...

Q. Era of first generation computers? The trends that were encountered at the time of the era of first generation computers were: Centralized control in a single CPU (al

Define operation code, Define Operation code. The Operation code of an ...

Define Operation code. The Operation code of an instruction is a group of  bits that explain such operations as add, sub, ,shift, mul and complement.

Explain about data segment, DATA SEGMENT  NUM1            DB      15h;...

DATA SEGMENT  NUM1            DB      15h;     First number   NUM2            DB      20h;     Second number  RESULT DB?  ; Put sum here  CARRY DB? ; Put any carry he

Visual perception problems, In AI the process of perception is studied ...

In AI the process of perception is studied as a set operations. A visual scene may be encoded by sensors and represented as matrix of intensity values. These are processed b

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