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Distinct versus distinctrow

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Distinct versus distinctrow

by  randysmid  Posted    (Edited  )
Hi,
As most people know, you can add the keyword "DISTINCT" to your SQL statement to retrieve unique records based on a field. Example:
SELECT DISTINCT LastName FROM Employees;

The "DISTINCT" keyword will only base its's search on a field, whereas the "DISTINCTROW" will base its' search on the entire record. This is extremely useful in searching for identical records that might have been posted to the database twice (in error).

In the Query Properties, this is represented by "Unique Values" (aka DISTINCT) and "Unique Records" (aka DISTINCTROW). These properties can be set to Yes or No. The default value for both of them is "No".

Comments, questions, suggestions?
rsmith@cta.org

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