Re: change sql statement and make it simple

Try this ...
This should eliminate your in-line view

select customer_id
from customers a
where a.contact_date > decode(sign(to_number (to_char(add_months(sysdate,-1),'mm'))-7),'- ',trunc(add_months(sysdate,-1),'year'),add_months (trunc(add_months(sysdate,-1),'year'),6));

Satyam Josyula

In article <m5X95.11600$Tb7.78632_at_news-server.bigpond.net.au>,   "Cobra__77" <Cobra__77_at_hotmail.com> wrote:
> I have the following query....it checks which half of the year is last
> month..
> and then if it is first half it returns 1-Jan-2000 and if it is
 second half
> 1-July-2000
>
> is there a way to get rid of the in-line view and do it in one
 go...and not
> use a function on custmer contact_date too...
>
> any ideas...
> thanks
>
> select customer_id
> from customers a,
> (select trunc(add_months(sysdate,-1),'year') begin_date
> from dual
> where to_number(to_char(add_months(sysdate,-1),'mm')) between 1
 and 6
> union
> select add_months(trunc(add_months(sysdate,-1),'year'),6)
 begin_date
> from dual
> where to_number(to_char(add_months(sysdate,-1),'mm')) between 7
 and 12
> ) b
> where a.contact_date > b.begin_date
>
>

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Before you buy. Received on Sun Jul 09 2000 - 00:00:00 CDT