I don't disagree a bit with what you've said.

On the other hand, I think a developer shouldn't have to be told more than twice that: 

SELECT DISTINCT(item)
FROM a.table

[download]
can eat up a couple hundred gig of spool without blinking, but that 
SELECT item
FROM a.table
GROUP BY item

[download]
goes by in the blink of an eye. You'd think that wouldn't be a major paradigm shift for them--but it is (okay, in one case I've been dwelling on lately). And it'd be even nicer to be heard the first time.

(This is an oversimplified example--the point being DISTINCT versus GROUP BY.)

adamsj

They laughed at Joan of Arc, but she went right ahead and built it. --Gracie Allen

In reply to Re: Re: Re: Re: How to structure applications using a RDBMS by adamsj
in thread How to structure applications using a RDBMS by dragonchild

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