Basil Hussain writes:
> Hi all,
>
> Is there any reason why I can't do something like any of the following?
>
> SET @blah := SHOW VARIABLES LIKE 'server_id';
> SHOW @blah := VARIABLES LIKE 'server_id';
>
> It doesn't seem to work no matter which combinations of syntax I try.
>
> Is setting user variables only supported via the SET and SELECT statements?
> I think it's a shame that setting variables from SHOW results is missing. I
> think that this functionality should be added to MySQL as it could be handy
> in some places.
>
> (For those who are wondering, I'm attempting to come up with a neat solution
> to avoid using auto-increment columns with co-replication between two MySQL
> servers. My idea was to have the server itself come up with a unique ID
> consisting of something like the current timestamp plus a random number plus
> the server's ID, rolled up into a concise hash value. My PHP script would
> perform a query like above when it first connects and then uses the saved
> user-variable in all subsequent queries where a unique ID is required.)
>
> Regards,
>
> Basil Hussain
> ---------------------------------------
> Internet Developer, Kodak Weddings
> E-Mail: [EMAIL PROTECTED]
Hi!
You can set variables to expressions only.
Setting them to queries will be possible when stored procedures are
implemented in about one year time.
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Regards,
__ ___ ___ ____ __
/ |/ /_ __/ __/ __ \/ / Mr. Sinisa Milivojevic <[EMAIL PROTECTED]>
/ /|_/ / // /\ \/ /_/ / /__ MySQL AB, FullTime Developer
/_/ /_/\_, /___/\___\_\___/ Larnaca, Cyprus
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