What is data merging,data cleansing,sampling?

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What is data merging,data cleansing,sampling?..

Answer / rekha

DATA MERGING : IT IS THE PROCESS OF INTEGRATING THE SOURCES
WITH SIMILAR STRUCTURE AND SIMILAR TYPE
TABLE A
ENO ENAME
100 REKHA VARCHAR2(10)
TABLE B
ENO ENAME
101 SAHAN VARCHAR
SO U CAN MERGE TO COMMAON DATATYPE STRING IN THE ABOVE CASE
dATA CLEANSING :
IT IS THE PROCESS OF IDENTIFING THE INCONSISTANCIES AND
INACCURACIES

DATASAMPLING:
ARBITARILY CHOOSING THE RECORDS FROM GROUP OF RECORDS FOR
TEST

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What is data merging,data cleansing,sampling?..

Answer / prasuna

Data Merging: It is a process of combning Non-Similar
structures or Similar structure data into Target Warehouse
system.
To combine Non Similar we can use Joins Concept,For
Similar We can use Union Concept

Data Cleansing:It is a process of converting Non Unique
data format of the source system into unique data format of
Target Warehouse system.

I dont Know definion for Data Sampling..can anyone plz give
the answer...

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What is data merging,data cleansing,sampling?..

Answer / rakesh

Data Merging:-
Is the process of merging non similar structure data (or)similar structure data into target warehouse system;

Data Cleansing:-
IS the process of converting source Non-Unique data format into unique data format into target warehouse system.

sampling:-
it is the process ,orbitarly reading the data from
group of records.

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What is data merging,data cleansing,sampling?..

Answer / dr.jornalist

Datamerging: This is the process of

Datacleansing:- Removing the Data inconsistencies and
Inaccuracy

Data sampling:- Arbitorily taking the data from the group
of records for the sample purpose.

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