What is the need of building a data warehouse?
Answers were Sorted based on User's Feedback
Answer / ashish goel
Data warehouse is generally designed for analyzing the
business operations but not to run the business operations.
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / vas.chiky
Having separate OLAP DWH database for analysis, increases
the performance of reports.
even during backup or crash period of oltp, OLAP database
will not get affected.
| Is This Answer Correct ? | 1 Yes | 0 No |
where is the reject loader .
How to jion 2 tables, without using any condition?
There are 4 flat files with number of records as indicated below. Which files should be picked first for joining using joiners so as to get best performance. File A - 1000 records File B - 100 records File c - 10000 records File D - 10 records Please explain. Thanks and Regards,
explain about lookup t/r?
How to create different types of slowly changing dimensions (SCD) in informatica using the mapping wizard?
i have a source table ID NAME SAL 101 A 1000 102 B 2000 103 C 1500 target load should be ID NAME SAL 101 A 1000 101 B 2000 101 C 1500 102 A 1000 102 B 2000 102 C 1500 103 A 1000 103 B 2000 103 C 1500
what is mean by flag 4 in update strategy t/r
Why we select the table which has minimum number of records as Master table in joiner?
how to read data from website into informatica? plsss send answers ASAP thanks in advance.
What are the types of caches in lookup? Explain them.
What is polling?
major difference between normal loading and bulk loading?