Обсуждение: Trying to append text to the end of a text string

decibel=# select 'moo' || 'cow';
 moocow

decibel=#

What database uses &&? Access? I seem to recall seeing that somewhere
before, but don't remember where...

Note that || is ANSI SQL.

On Thu, Oct 06, 2005 at 11:30:53AM +1300, Adam Lawrence wrote:
> Hi
>
> I am trying to append text onto the end of a text variable.
>
> I have the text variable P_IDT_ID, I want to add the letter S to the end of it, so I tried the following line in my
code:
>
> P_IDT_ID := P_IDT_ID && cast(''S'' as text);
>
> However, I got the following error message:
>
> ERROR:  operator does not exist: text && text
> HINT:  No operator matches the given name and argument type(s). You may need to add explicit type casts.
> CONTEXT:  SQL statement "SELECT   $1  && cast('S' as text)"
> PL/pgSQL function "f_create_index_currency_inversion" line 28 at assignment
>
> Note I am using PL/pgSQL.
>
>
> Can you help?
>
> Thanks
> Adam
>
> Adam Lawrence
> Mediasculpt
>
> Direct Line: +64 6 3546038
> Email: adam@mediasculpt.com

--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461

On Wed, 2005-10-05 at 17:30, Adam Lawrence wrote:
> Hi
>
> I am trying to append text onto the end of a text variable.
>
> I have the text variable P_IDT_ID, I want to add the letter S to the
> end of it, so I tried the following line in my code:
>
> P_IDT_ID := P_IDT_ID && cast(''S'' as text);
>
> However, I got the following error message:
>
> ERROR:  operator does not exist: text && text
> HINT:  No operator matches the given name and argument type(s). You
> may need to add explicit type casts.
> CONTEXT:  SQL statement "SELECT   $1  && cast('S' as text)"
> PL/pgSQL function "f_create_index_currency_inversion" line 28 at
> assignment

Did you try using the || concatenation operator there?

On Thu, Oct 06, 2005 at 11:30:53AM +1300, Adam Lawrence wrote:
> Hi
>
> I am trying to append text onto the end of a text variable.
>
> I have the text variable P_IDT_ID, I want to add the letter S to the end of it, so I tried the following line in my
code:
>
> P_IDT_ID := P_IDT_ID && cast(''S'' as text);

Try standard SQL:

P_IDT_ID || cast(''S'' as text)

Hope this helps,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.