Why should we use star schema in datawarehouse design?
Answers were Sorted based on User's Feedback
Answer / arun
Star schema has less joins within its related dimensions so query retreival is faster than SNow-flake.
Space consumed is more than snow-flake
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / jz
1) Query performance is high.
2) It consume less space compare to SnowFlake.
| Is This Answer Correct ? | 4 Yes | 6 No |
whats the option in informatica 7 version is outdated in informatica 8 version onwards.
What is rank transformation in informatica
1:when we develop a project what are the performance issue will raise?? KPIT 2:if a table have INDEX and CONSTRAINT why it raise the performance issue bcoz when we drop the index and disable the constraint it performed better??KPIT 3:what are unix commands frequently used in informatica??
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Reusable transformation and shortcut differences
What are the different lookup cache(s)?
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All active transformations r passive or not?
I have a text file name x With a text message. Word informatica Is repeated for n number of times. How to count the number of occurrence Of word informatica Of word informatic in this file x.