>>>>Is it possible to create an index tag on a field that would enforce unique entry in the field, unless the entry is blank (no entry)?
>>>
>>>You can have a candidate index On myfield with NOT EMPTY(myfield) in For clause.
>>
>>Thank you very much. By the way, I did try it before I posted the question but I missed entering the field name in the EMPTY() expression.
>
>You welcome. Make sure you don't have NULL values in the field.
I won't have NULL values but what got me a little concerned is what Borislav said about optimization. I am thinking that maybe I should have another index tag on this field, just for optimizing queries. Does it make sense?
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