Warehouse Concepts Question:
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Explain what is aggregate table and aggregate fact table ... any examples of both?

Answer:

Aggregate table contains summarized data. The materialized view are aggregated tables.

for ex in sales we have only date transaction. if we want to create a report like sales by product per year. in such cases we aggregate the date?vales into week_agg, month_agg, quarter_agg, year_agg. to retrive date from this tables we use @aggrtegate function.


aggregate table is one of the data transaction function and some time it is create a protect per year.this aggregate value is week agg ,month agg quarter agg function

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Explain What is fact less fact table? where you have used it in your project?Please explain in detail about
type 1,
type 2(SCD),
type 3?