troubleshooting Question

How to produce count of distinct records

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dzirkelbFlag for United States of America asked on
Microsoft AccessSQL
5 Comments4 Solutions81 ViewsLast Modified:
I am trying to get a count of distinct part numbers from a table where a part could be listed more than one time.  Here is an example table of data:

Master123 | Detail123
Master123 | Detail123
Master123 | Detail456
Master123 | Detail456
Master123 | Detail456
Master123 | Detail789
Master456 | Detail789

I want the count of different "Detail" numbers.  In this case, I want the query to produce 3 as a result for Master123, and 1 for Master456.
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