Re: [SQL] Quickie

Thus spake pierre(at)desertmoon(dot)com
> Given:
> User_Email|User_ID
> -------------------
> fubar | 1
> barfu | 2
> snafu | 3
> Fubar | 4
>
> What query could I use to return ONLY 'fubar' and 'Fubar'? Would I do a self

Well, the obvious is;

SELECT * FROM x WHERE User_Email = 'fubar' OR User_Email = 'Fubar';

But I assume you are looking for something more useful. Are you trying
to catch all entries not in all lower case? Try this:

SELECT * FROM x WHERE User_Email != lower(User_Email);

Or you can convert to lower with this:

UPDATE x SET User_Email = LOWER(User_Email);

If you have a unique index on User_Email then the ones that already
exist will fail and then you can use the first one to find the ones
that didn't get converted. Those will be the dups.

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