Tell me about informatica architecture.
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Answer / rajan raorane
Informatica describes about Extraction , Transfotrmation
and Loading
Extraction from OLTP database
Transfromation done on the exctracted Data
Load in DWH
OLTP-->ETL(informatica)-->DWH-->OLAP
Informatica 8.6 is inclusive of Repositary and Integrated
services
Repositary: Are used to create user and assign previliges
Integration Services: these are used to
1)create folders in Repositary Manger
2)design Mapping in Power Designer
4) Create Session and Work flow in Workflow designer
5) Status you can observe in Work flow monitor
| Is This Answer Correct ? | 3 Yes | 2 No |
What is checksum termnology in informatica? Where do you use it ?
3 Answers Chase, Cognizant, Deloitte,
Can we update a target table (without primarykey) by using update strategy transformation?
How to add source flat file header into target file?
Which means the first record should come as last record and last record should come as first record and load into the target file?
Why we require dwh in particular projects?
How do you Merge multiple Flat files for example 100 flat files with out using Union T/F
1,If there are 3 workflows are running and if 1st workflow fails then how could we start 2nd workflow or if 2nd workflow fails how could we start 3rd workflow?
4 Answers CompuSoft, EDS, TCS,
how to we create datamart?
How can yoU improve session performance in aggregator transformation?
What is the difference between procedure and stored procedur?
What are the issues you have faced in your project? How did you overcome those issues?
Where do we use mapping variables in informatica?