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CS614 Assignment No 03 Solution & Discussion Due Date:Feb 16, 2015

Consider the below applicant table:

Applicant_ Info

 

 

.Question:

Apply all three steps of Basic Sorted Neighborhood (BSN) method to find out the duplicate records in the table. Records will be considered duplicate if the value of “Applicant_id

” column is same in these records.

 

Use the following rules for the key:

Key:

Key will consist of first three characters from “Applicant_id”, then first three characters from “Applicant_Name” and then first two characters from “father_Name” column.

BSN method comprises of three steps given below:

a) Create key

In step-1, you will create the key according to the rules as mentioned above against each record. For this, you can add extra column at the end of the table to show the new key created against each record.

b) Sort the data

In step-2, you will sort the record on the basis of newly created key of step-1.

c) Merge

In step-3, consider the window size (w) equal to two (2). You are required to identify the similar records on the basis of sorted key.

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Replies to This Discussion

CS2025

umair

ikram

PHD

Islamabad

CS2 uma ik

MG2026

waseem

maqsood

MBA

Faisalabad

MG2 was ma

MH2027

faizan

jawad

MSc

Lahore

MH2 fai ja

MG2026

waseem

maqsood

MBA

Faisalabad

MG2 was ma

EN2028

Atif

sohail

BS

Multan

EN2 ati so

MH2027

faizan

jawad

MSc

Lahore

MH2 fai ja

CS2029

Tariq

Ali

MSc

Karachi

CS2 tar al

 

Step # 2 Sorted Key

 

 

 

 

 

 

Applicant-

ID

Applicant-

Name

Father- Name

Qualification

Address

Key Sorted

Duplicate

Record

CS2025

umair

ikram

PHD

Islamabad

CS2 uma ik

 

CS2029

tariq

ali

MSc

Karachi

CS2 tar al

 

EN2028

atif

sohail

BS

Multan

EN2 ati so

 

MG2026

waseem

maqsood

MBA

Faisalabad

MG2 was ma

MG2 was ma

MG2026

waseem

maqsood

MBA

Faisalabad

MG2 was ma

MG2 was ma

MH2027

faizan

jawad

MSc

Lahore

MH2 fai ja

MH2 fai ja

MH2027

faizan

jawad

MSc

Lahore

MH2 fai ja

MH2 fai ja

plz discus 3rd step also

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