Re: rtrim

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От Andrew McMillan
Тема Re: rtrim
Дата
Msg-id 1043220702.3118.189.camel@kant.mcmillan.net.nz
обсуждение исходный текст
Ответ на rtrim  (ryanne cruz <ryanne.cruz@up.edu.ph>)
Ответы Re: rtrim
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On Wed, 2003-01-22 at 19:25, ryanne cruz wrote:
>  hi list.
>
> if there's anyone here who's familiar with teh rtrim function, please i need
> help.

It depends on the datatypes in use.

If you use a type like "CHAR(32)" it will always be right-padded with
spaces.  Whereas if you use a type like "TEXT" or "VARCHAR(32)" it will
be stored as you enter it (it may still have some trailling spaces.

Now, when you use the rtrim() function, but insert the result into a
CHAR(N) column, all those spaces will just be stuck straight back on
again.  This is likely to be what is happening in your case.

Regards,
                    Andrew.
>
> i have a table that has a column in it that has data in this format:
>
> California, USA
> Nevada, USA
> .
> .
> .
>
> when i use rtrim to erase the ", USA" part, it only sometimes work. a sample
> result would be:
>
> California
> Nevad
>
> my query statement is:
> update table set name=rtrim(name,', USA');
>
> why is it that it only works sometimes?
>
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