I have a select I'd like to do...I have 2 kinds of people -- those
needing interviews, and those doing interviews. Among other things,
each person has their home address/phone in the tables. I want to
generate lists of interviewers in close geographical proximity to the
interviewees. I can do the city check easily of course, but I'm
stumped on telephone exchanges and zipcode matches.
The telephone numbers are stored as char[12] (three digits, dash,
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"...
--Cindy
--
[EMAIL PROTECTED]
---------------------------------------------------------------------
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail <[EMAIL PROTECTED]>
To unsubscribe, e-mail <[EMAIL PROTECTED]>
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
