Oracle SQL RTFM question

[john saylor]

initialize

On Wed, Apr 6, 2011 at 1:32 PM, Jerry Feldman <gaf-iwcNaMm7aMIiq3RsQ1AnAw at public.gmane.org> wrote:
> I know how to create a user, grant, et.al, but I don't know how to set this
> up to test if a user exists.

select count(*) from users where username like '%username%';

?

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\js : "verbing weirds language." -calvin  [http://or8.net/~johns/]