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Help with Execute SQL to count unique values

Question asked by sccardais on Mar 17, 2015
Latest reply on Mar 18, 2015 by philmodjunk

Title

Help with Execute SQL to count unique values

Post

I want to calculate / count the number of unique email addresses in my file.

I defined a calculation field, c_UniqueEmails (number result) with the calculation shown below: 

ExecuteSQL ("SELECT COUNT (DISTINCT Email_User) FROM USERS_XYZ" ; "" ; "")

I've tried this with various Storage options. They all return "?" as a result.

Email_User is a text field / indexed.

The name of the FileMaker file is USERS_XYZ. The name of the TO is USERS. If I use USERS instead of USERS_XYZ, the progress bar appears but nothing happens. I need to force quit. If I use USERS_XYZ, the calculation returns a "?"

The table has almost 70,000 records.

What might I be doing wrong?

FMPA 13

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