Re: alter database character set (Was: RE: 'internal' role and 9i)

I've never used that, but this syntax seems to work:

  alter database character set internal_use us7ascii;

Of course, you could lose some characters or mess up your data completely that way...

Tanel.

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Tuesday, November 18, 2003 7:49 PM

> Gopal,
>
> In case I didn't make my message clear, I wanted to know if using that
keyword
> allows us to change character set from a superset to a subset (e.g. from
UTF8
> to US7ASCII). The documented command ALTER DATABASE CHARACTER SET <new
charset>
> is only for changing from a subset to a superset. If changing to a "lower"
> character set works, what's the syntax? Personally, I can't imagine how
that's
> possible.
>
> Thanks.
>
> Yong Huang
>
> --- K Gopalakrishnan <kaygopal_at_yahoo.com> wrote:
> > <INSERT STANDARD DISCLAIMERS>
> >
> > Yes. You can use INTERNAL_USE keyword to convert the database character
set.
> > I think there is a utility called 'csscan' character set scanner which
can
> > be
> > used to determine the possibility of the INTERNAL_USE conversion.
> >
> > <END DISCLAIMERS>
> >
> >
> > Best Regards,
> > K Gopalakrishnan
> >
> >
> >
> >
> > -----Original Message-----
> > Yong Huang
> > Sent: Tuesday, November 18, 2003 9:00 AM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > Gopal,
> >
> > Are you saying with an undocumented parameter or command, I can alter
> > database
> > (national) character set us7ascii even if my current (national)
character
> > set
> > is utf8?
> >
> > Yong Huang
> >
> > --- K Gopalakrishnan <kaygopal_at_yahoo.com> wrote:
> > > INTERNAL_USE is an keyword (to enable an undocumented feature) in
ALTER
> > > DATABASE
> > > command. THis can be used to convert the database character set if the
> > > existing
> > > char set (national charset) is the superset of the db charset. You can
> > just
> > > run
> > > the ALTER Database command to convert the db charset.
> > >
> > >
> > >
> > > Best Regards,
> > > K Gopalakrishnan
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > Barry Deevey
> > > Sent: Tuesday, November 18, 2003 7:09 AM
> > > To: Multiple recipients of list ORACLE-L
> > >
> > >
> > > As of yet I'm unsure how the application would be affected if I rename
the
> > > role - I need to do some investigation.
> > >
> > > I tried this in Oracle 8 and it worked fine - It just seems to be
oracle 9
> > > that doesn't like it.
> > >
> > > I've also checked v$reserved_words and INTERNAL is not listed,
> > INTERNAL_USE
> > > and INTERNAL_CONVERT are. As a test I created roles for INTERNAL_USE
and
> > > INTERNAL_CONVERT, hoping that it would not allow me to create them,
but it
> > > did, so I then ran the grant again and it also allowed it.
> > >
> > > Now I'm really confused!!
>
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-- 
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-- 
Author: Tanel Poder
  INET: tanel.poder.003_at_mail.ee

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