Answer / veera reddy

Basically there are two types of architectures.
1. Top Down(Dependent) and 2. Bottom up(Independent)

In Top Down approach initially DW comes and then DM.
In Bottom Up approach intially DM comes and then DW.

Answer / praveen kumar

step-01------>source to staging
step-02------>staging to dimension
step-03------>dimension to fact

This is the general procedure.........

Answer / rekha

PROJECT PLANNING
REQUIREMENTS GATHERING ---PRODUCT SELECTION AND INSTALLTION

DIMESIONAL MODELING --- PHYSICAL
MODELING ---- DEPLOYMENT --- MAINTENANCE

IN EASY TREMS FOR DIMENSIONAL MODELING
1. SELECT THE BUSINEE PROCESS
2 IDENTIFY THE GRANINS
3 . DESIGN THE DIMENSION TABLE
4 . DESIGN THE FACT TABLE
ONCE THESE 4 STPE ARE OVER IT WILL MOVE TO PHYSICAL
MODELING
IN PHYSICAL MODELING U APPLY THE ETL PROCESS AND
PERFORMANCE TECHNOQUES .

Answer / bsgsr

i simply put this way.
source to staging
staging to dwh

Answer / kumarapillaietl@gmail.com

first we integrate data into source to staging tables, from staging we movie into work table at the data moment of stage to work we do all transformation logic , then from work table we load data into fact and dimention table using scd 2.

without dynamic lookup transformation how to insert new rows and update existing rows?

7 Answers   Cap Gemini,

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i have one source 52 million records i want target only 7 records ?how wil you do what logic to implement?

7 Answers   L&T,

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what is incremental loading ?

12 Answers   CTS, IBM, Oracle, TCS,

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Where we use dynamic lookup and where we use it?do we generate surrogate keys using dynamic lookup?can we use it for scd type 2 mapping and why?

3 Answers   Amdocs,

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How mapping parameter and variable works

1 Answers  

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Explain the types of transformations?

0 Answers  

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IF Sorce table contains CLOB as its one data type then i get error at the target table. How can this be resolve?

2 Answers  

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Explain sessions and how many types of sessions are there?

0 Answers  

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i did MBA in 2008. i got job as a Software Engineer(Informatica) in 2008 February in our college campus interviews through consultancy. my problem is when iam going interview HR people ask " YOu are MBA graduate how u get software(informatica) job". iam saying i got job in campus interviews. i have knowledge in informatica in dataware housing. is this answer correct or not. plese give me guidence

1 Answers   IBM,

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What is rank transform?

0 Answers  

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if i have a file having record sal=10000,and when use router with two groups having condition sal>5000 in one group,sal>7000 in other group.and if two groups connected to two targets.in which target sal=10000 will go?

9 Answers   BirlaSoft, Genpact, L&T, Syntel,

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Hi all , I am planning for informatica S - PowerCenter 8 Mapping Design certification. I have rewuired the dumps for the same. if anyone of you having the same pl. share it with me. This will be of great help. My contact is : sagardev7@gmail.com TIA , Sagar

0 Answers  

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