Re^2: (OT) Exclusion selection on DBI

Thank you very much for the advices. They have given to me deep insights about my problem. But I need to apologize I’ve not described the problem appropriately. I will try it again, here:

The complete table I have is like:

Fruit, colour, Id number of supermarket

I need to be able to select only the repeated fruits in two given supermarkets. So, if I have

Mellon, red, 1
Mellon, green, 2
Banana, black, 1
Orange, blue, 3

And if I want to get information about supermarket 1 and 2, the result will be

Mellon, red, 1
Mellon, green, 2

I’m using DBI module.

Thanks!

Comment on Re^2: (OT) Exclusion selection on DBI

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Re^3: (OT) Exclusion selection on DBI by moritz (Cardinal) on Jan 25, 2008 at 14:14 UTC
The additional requirement of the supermarket id just adds a WHERE clause `WHERE supermarket in (1, 2)`. And of course the supermarket ID has to appear in your SELECT list.	[reply] [d/l]