SQL (this AND that), OR (that AND theOther)
Alan Stenhouse
alanstenhouse at hotmail.com
Wed Oct 9 04:46:17 EDT 2013
Roger
Could you perhaps concatenate the user + car columns to make a new key and then do a select from that?
e.g select * from ( select *, concat(user,car) as myKey from yourTable )
and use an appropriate where clause on that? Though it's not entirely clear what your requirement is.
HTH
cheers
Alan
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Alan Stenhouse
alanstenhouse at hotmail.com
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On 09/10/2013, at 4:57 AM, use-livecode-request at lists.runrev.com wrote:
> Having some SQL query troubles... I need to get results from a long list
> in a single query, BUT there are pairs of fields that must match. Every
> pair is a unique pair, aka no duplicates. If my list contains 50 pair that
> are unique, I may only get 30 returned rows, but I need all 50.
>
> This is what I've tried, but SQL strips away my outer parens, making my AND
> less binding for the pair.
>
> WHERE
> ((user = 'Joe') AND (car = 'Ford')) OR
> ((user = 'John') AND (car = 'Chevy')) OR
> ((user = 'Jim') AND (car = 'Kia')) OR
> ((user = 'Jim') AND (car = 'Smart'))
>
> ~Roger
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