Обсуждение: Select by priority again

Sorry about this, but I don't quite get previous postings regarding
select by prioriry.

I have the same question with my sql. I want to be able to select
cell_phone if there is one in the table; otherwise, I will select
work_phone.

table
------
id, name, address, cell_phone, work_phone,...

and I tried using "case when...end" but nope, it's not gonna work. Help
is needed. Thanks.


- Bernie

     [Note:  PHP mailing list removed from Cc as this is strictly a     PostgreSQL question I think.]

Thus spake Bernie Huang
> Sorry about this, but I don't quite get previous postings regarding
> select by prioriry.
> 
> I have the same question with my sql. I want to be able to select
> cell_phone if there is one in the table; otherwise, I will select
> work_phone.
> 
> table
> ------
> id, name, address, cell_phone, work_phone,...
> 
> and I tried using "case when...end" but nope, it's not gonna work. Help
> is needed. Thanks.

Exactly what was the SQL statement and which version of PostgreSQL?  I
do this in a view and it works.
   SELECT CASE WHEN login IS NULL THEN uid::text ELSE login END AS login   FROM account;

-- 
D'Arcy J.M. Cain <darcy@{druid|vex}.net>   |  Democracy is three wolves
http://www.druid.net/darcy/                |  and a sheep voting on
+1 416 425 1212     (DoD#0082)    (eNTP)   |  what's for dinner.

"D'Arcy J.M. Cain" wrote:

>      [Note:  PHP mailing list removed from Cc as this is strictly a
>       PostgreSQL question I think.]
>
> Thus spake Bernie Huang
> > Sorry about this, but I don't quite get previous postings regarding
> > select by prioriry.
> >
> > I have the same question with my sql. I want to be able to select
> > cell_phone if there is one in the table; otherwise, I will select
> > work_phone.
> >
> > table
> > ------
> > id, name, address, cell_phone, work_phone,...
> >
> > and I tried using "case when...end" but nope, it's not gonna work. Help
> > is needed. Thanks.
>
> Exactly what was the SQL statement and which version of PostgreSQL?  I
> do this in a view and it works.
>
>     SELECT CASE WHEN login IS NULL THEN uid::text ELSE login END AS login
>     FROM account;
>
> --
> D'Arcy J.M. Cain <darcy@{druid|vex}.net>   |  Democracy is three wolves
> http://www.druid.net/darcy/                |  and a sheep voting on
> +1 416 425 1212     (DoD#0082)    (eNTP)   |  what's for dinner.

hi, thanks for the help.  I will avoid to CC to the wrong list.


- Bernie