<cut>
> three digits, dash, four digits).  I want to compare the second
> set of three digits to each other, something like
> 
>   WHERE Interviewee.homephone[4-6] = Interviewer.homephone[4-6]
> 
> Similarly for zip codes, I want to compare the first three characters
> of a char[10] (zip plus 4], essentially
> 
>   WHERE Interviewee.zip[0-2] = Interviewer.zip[0-2]
> 
> Are these types of comparisons possible?  If so, what's the syntax?  I
> couldn't find anything in the online documentation, though it's
> possibly not called "slicing" or "string range"...

Check the manual for one of the following functions...

LEFT
RIGHT
MID
SUBSTRING (several incarnations)
SUBSTRING_INDEX

/ Carsten
--
Carsten H. Pedersen
keeper and maintainer of the bitbybit.dk MySQL FAQ
http://www.bitbybit.dk/mysqlfaq


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