Eliminating Duplicate on a Query

[latino]

I have a query for clients who come to our office looking for services.
I only need to report 1 visit per client during the month, in other words if the client comes several times during the month, we only count 1.

When I run the query, it gives all the times the client came to the office, but I only need to show once.

Clients are being sorted by ClientID. What do I need to write in the Criteria field to filter clients from showing again ?

Thanks

 

[lamha]

No criteria is needed. You need a group by clause like this

SELECT ClientID, Max(DateVisit) AS VisitDate
FROM Clients
GROUP BY ClientID;

 

[pablofonto]

you can avoid duplicates in your query by going into your query properties and change the "unique values" field to YES.

 

[latino]

I couldn't find the property that allowsme to change the unique value field to yes. Where do you find it? Is it on the design view of the query? Please help.
Thanks

 

[dccampbell]

ditto

I am looking for the same thing.. In Reports, there is the ability to turn off Duplicate entries... but this isn't really what you are looking for.

I am not seeing the "unique values" field in the Design View either

 

[edtab]

In the top part of the query design where the tables are, right click on the blank space and you will see the "unique" property setting.