Обсуждение: Character translation?

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Character translation?

От
"Linn Kubler"
Дата:
Hi,

I have a view like this:
create view myview as
select recid, title, firstname || chr(32) || lastname as expert, rank from mytable;

When I use this view via odbc on a Windows 2000 system using Visual FoxPro
the expert field shows up as a memo field.  This is analogous to the text
field in PSQL.

What I'd like to do is have the expert column come through as a varchar type
so that it shows up as a text field in VFP.  Any suggestions?

I was looking at the functions and didn't see anything that would do the
trick for me but I could have just missed something.  I also saw a reference
to the cast() function but couldn't find any usage info on it in the online
docs.

Any help is greatly appreciated.
Thanks in advance,
Linn


--
Please remove the number two from domain name for email.




Re: Character translation?

От
Richard Huxton
Дата:
On Thursday 05 Sep 2002 11:15 pm, Linn Kubler wrote:
> Hi,
>
> I have a view like this:
> create view myview as
> select recid, title, firstname || chr(32) || lastname as expert, rank
>   from mytable;
>
> When I use this view via odbc on a Windows 2000 system using Visual FoxPro
> the expert field shows up as a memo field.  This is analogous to the text
> field in PSQL.
> What I'd like to do is have the expert column come through as a varchar
> type so that it shows up as a text field in VFP.  Any suggestions?
> I was looking at the functions and didn't see anything that would do the
> trick for me but I could have just missed something.  I also saw a
> reference to the cast() function but couldn't find any usage info on it in
> the online docs.

I think you're on the right track, try something like:

select (firstname || ' ' || lastname)::varchar as expert ...

If it works, could you let the list know in case anyone else needs this in
future. If not, there is an ODBC list too (see postgresql.org website for
details)

- Richard Huxton


Re: Character translation?

От
"Troy"
Дата:
Would this work?

select recid, title, firstname || chr(32) || lastname::char(50) as expert, rank from mytable where length(lastname) <=
50;



Troy

> 
> Hi,
> 
> I have a view like this:
> create view myview as
> select recid, title, firstname || chr(32) || lastname as expert, rank
>   from mytable;
> 
> When I use this view via odbc on a Windows 2000 system using Visual FoxPro
> the expert field shows up as a memo field.  This is analogous to the text
> field in PSQL.
> 
> What I'd like to do is have the expert column come through as a varchar type
> so that it shows up as a text field in VFP.  Any suggestions?
> 
> I was looking at the functions and didn't see anything that would do the
> trick for me but I could have just missed something.  I also saw a reference
> to the cast() function but couldn't find any usage info on it in the online
> docs.
> 
> Any help is greatly appreciated.
> Thanks in advance,
> Linn
> 
> 
> --
> Please remove the number two from domain name for email.
> 
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
> 



Re: Character translation?

От
Stephan Szabo
Дата:
On Thu, 5 Sep 2002, Linn Kubler wrote:

> Hi,
>
> I have a view like this:
> create view myview as
> select recid, title, firstname || chr(32) || lastname as expert, rank
>   from mytable;
>
> When I use this view via odbc on a Windows 2000 system using Visual FoxPro
> the expert field shows up as a memo field.  This is analogous to the text
> field in PSQL.
>
> What I'd like to do is have the expert column come through as a varchar type
> so that it shows up as a text field in VFP.  Any suggestions?
>
> I was looking at the functions and didn't see anything that would do the
> trick for me but I could have just missed something.  I also saw a reference
> to the cast() function but couldn't find any usage info on it in the online
> docs.

cast() isn't a function precisely speaking.  It works as
CAST(expr as datatype).