what is the architecture of any Data warehousing project?
Answer Posted / 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 .
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Can one use mapping parameter or variables created in one mapping into any other reusable transformation?
What is the scenario which compels informatica server to reject files?
Hi, There is a session in my workflow which is running for a long time, atlast we found the cause is the missing index. My session is running via a stored procedure. Can I create an Index on the table which the stored procedure is using while my session is running? Please suggest. My Informatica version is PC 8.0.6 My Oracle APPS is 11.5.3. Thanks,
Describe expression transformation?
What is the need of etl tools?
What is informatica?
How you know when to use a static cache and dynamic cache in lookup transformation?
I need the output file in the below format using Informatica. __0946684800__ 6 1 3 1 5 1 6 1 10 1 6 10 Pos State Time Split AgentID Reason Spaces Code in Code Spare state ______ ___ _____ ______ __________ ______ 1234 14 0 4321 3103 abcd 4321 15 5 123452 3150 Can someone help please?? We need the data in space-delimited, fixed ASCII format .
What is informatica? Why do we need it?
How many ways a relational source definition can be updated and what are they?
Calculate sum of salaries department wise. Then the sum will be repeat for all columns in each department. Develop a mapping for this.
have u done any performance tuning? how u ll do?
What is a difference between complete, stop and abort?
Informatica Server and Client are in different machines. You run a session from the server manager by specifying the source and target databases. It displays an error. You are confident that everything is correct. Then why it is displaying the error?
How union transformation is used?