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1.what is SDLC of a project,explain in detail?
2.what are dimensions,facts?what is confirmed dimensions?
3.what is the need of OLTP? when we have datawarehousing?
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Answer Posted / shafiq
1.SDLC(Software Developement Life Cycle)
It is a important concept for a developer
There are 7 Phases in SDLC
1.Prepration
2.Analysis
3.Design
4.Coding/Implementation
5.Testing/UAT
6.Deployment
7.Evaluation
2.Dimensions are nothing but context of measure on whch
facts are calculated,
facts are nothing but which contains all measurements of
business needs.
Conformed Dimension is used to join more than 2fact
table in multi star schema.
3.OLTP Maintains current data.
eg:ATM
| Is This Answer Correct ? | 2 Yes | 1 No |
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