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SQL Query Query
https://x404.co.uk/forum/viewtopic.php?f=4&t=16119		 Page 1 of 1
Author:  jonlumb [ Thu Mar 22, 2012 10:10 am ]
Post subject:  SQL Query Query
I have a table which contains two columns, one called Dealers, one called Brands. Any entry in the table represents a dealer stocking a given brand.

What I'm trying to get is a SQL query that allows be to list each dealer that stocks all of a given selection of brands, rather than just returning each dealer that stocks at least one of the aforementioned brands. Anyone got any ideas?
Author:  finlay666 [ Thu Mar 22, 2012 10:59 am ]
Post subject:  Re: SQL Query Query
Group by the dealer, return where each item in the subset is there

as a c# linq statement (may need some tweaking)

string[] brands = new string[]{"foo","bar"};
var foo = from t in table
group t by t.Dealer into tDeal
where(t.select(p=>p.Brands).Intersect(brands));
Author:  tombolt [ Thu Mar 22, 2012 1:03 pm ]
Post subject:  SQL Query Query
Am I being thick here or isn't the query just select dealer where brand = abc and def and etc?
Author:  finlay666 [ Thu Mar 22, 2012 1:35 pm ]
Post subject:  Re: SQL Query Query
tombolt wrote:
Am I being thick here or isn't the query just select dealer where brand = abc and def and etc?

it is, but as (possibly) a more programmatic approach
Author:  jonlumb [ Thu Mar 22, 2012 2:23 pm ]
Post subject:  Re: SQL Query Query
tombolt wrote:
Am I being thick here or isn't the query just select dealer where brand = abc and def and etc?


Apparently not, having just tried it. Will have a look at the Group By function later.

Edit: Or maybe I was just being an idiot; it's now working.

Sorry for the dumb questions, it's been a while since I used any SQL.
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