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Course Queries Syllabus Queries 2 years ago
Posted on 16 Aug 2022, this text provides information on Syllabus Queries related to Course Queries. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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I have a lesson called Data warehousing in there is a section called Star Scheme model
Can anyone explain the meaning of star schema in data warehouse concept, i tried in the net but i could't found any answer. its in my Degree syllabus but i cant understand it.
So, in my report/cubes i need to know (in a period):
1 How many Newsletter lead to a Sale,
2 How many Newsletter have been generated.
Where should i place the generate_date of Newsletter? If i place it in FACT table, but if this Newsletter did not lead to a Sale, there will be no date in FACT table.
If i place it on Newsletter and join it to Time, i would be breaking the Star schema?
How do i solve this :S
I have many other cases that is the same question, like client join_date.
Thanks
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