Jonathan Terhorst wrote:
I can't figure out if this is actually challenging or if it's a stupid
question. Table1 is a normal old relation that describes a bunch of objects:
Table1 (id INT PRIMARY KEY NOT NULL, Name varchar(255), Size int) etc.
Associated with each Table1 record is a variable-lengt
At 09:24 PM 11/10/2003, Leo wrote:
notice the _and_ ?
*grin*
good point. I guess my reply (which I found out later was unnecessary since
the question had already been answered) would have been better stated had I
just pointed out the distinct keyword rather than constructing a sample
query. :)
AIL PROTECTED]>
Sent: Monday, November 10, 2003 8:26 PM
Subject: Re: Maybe easy, maybe hard SELECT puzzle :)
> At 07:45 PM 11/7/2003, Jonathan Terhorst wrote:
> >
> >One way I have found to implement this is
> >SELECT Table1.id from Table1 JOIN Features USING(id) WHERE
>SELECT DISTINCT f.id FROM Table1 AS t, Features AS f
>WHERE f.id = t.id AND f.FeatureCode IN ('A01', 'B02');
>HTH
what if i have a record that have 'A01' in the features, but not 'B02'
wouldnt it still be displayed in the result?
as far as i know, IN keyword act simply as OR keyword
didnt Jona
At 07:45 PM 11/7/2003, Jonathan Terhorst wrote:
One way I have found to implement this is
SELECT Table1.id from Table1 JOIN Features USING(id) WHERE
Features.FeatureCode='A01' OR Features.FeatureCode='B02' GROUP BY Table1.id
HAVING COUNT(*)=2;
e.g. counting the duplications of id and selecting th
>But it I want all records from Table1 that have features 'A01' _and_ 'B02',
>clearly
>SELECT * from Table1 JOIN Features USING(id) WHERE
>Features.FeatureCode='A01' AND Features.FeatureCode='B02' doesn't work.
okay maybe this one is a more stupid and complex solution :)
but i think it should wor
I can't figure out if this is actually challenging or if it's a stupid
question. Table1 is a normal old relation that describes a bunch of objects:
Table1 (id INT PRIMARY KEY NOT NULL, Name varchar(255), Size int) etc.
Associated with each Table1 record is a variable-length of 3-byte
alphanumeric
