Best way to present incredibly detailed table? [duplicate]

1. How will you display duplicates from the table?
2. Can fact table have duplicates?
3. How do you avoid duplicates in a table?

How will you display duplicates from the table?

Using the GROUP BY and HAVING clauses we can show the duplicates in table data. The GROUP BY statement in SQL is used to arrange identical data into groups with the help of some functions. i.e if a particular column has the same values in different rows then it will arrange these rows in a group.

Can fact table have duplicates?

After ETL processes there are SalesReps assigned to each line (basing on Customer, Product combination) which generates duplicates in the fact table. In the real-life case there are some more hierarchy levels regarding SalesReps and therefore there might more than 1 duplicates for each combination - see R1 and R2).

How do you avoid duplicates in a table?

In the Navigation Pane, right-click the table that contains the field, and then click Design View. Select the field that you want to make sure has unique values. In the Field Properties pane at the bottom of the table design view, on the General tab, set the Indexed property to Yes (No duplicates).