| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Usenet -> c.d.o.misc -> Re: what is the SQL equivalent of 'continue' and 'break' in C ?
DA Morgan wrote:
> happyardy_at_gmail.com wrote:
> > Scott wrote:
> >> happyardy_at_gmail.com wrote:
> >>> what is the SQL equivalent of 'continue' and 'break' in C ?
> >>>
> >>> like can I do this...
> >>>
> >>>
> >>> for counter in 1..10
> >>> if(something something)
> >>> ( if (something)
> >>> ( if(something)
> >>> then continue;
> >>>
> >>> //Rest of the for loop
> >>>
> >>> end loop;
> >>>
> >>> Would it start the next iteration without processing the rest of the
> >>> loop ?
> >>>
> >>> thanks
> >>> - Ardy
> >> If I understand the question, something like this in PL/SQL
> >>
> >> loop
> >>
> >> loop
> >> if something
> >> then
> >> exit; -- continue, i.e. go on with the rest of the main loop
> >> end if;
> >>
> >> end loop;
> >>
> >> if something_else
> >> then
> >> exit; -- break, i.e. get out of the main loop
> >> end if;
> >> -- rest of the for loop
> >>
> >> end loop;
> >
> > Scott,
> > I am a little confused about if this works the way, 'continue' works in
> > C language. I mean in the middle of a for loop if I have a "continue;"
> > in C language, the control just goes to the top of the loop and starts
> > a new iteration.
> > In your code here, 'exit'' would break me out of the inner loop and the
> > control would go to first statement(if any) that is outside the inner
> > loop. I have a bunch of statements in my code after the inner loop.
> > What I want to happen is that the control goes directly to the next
> > iteration without trying to execute any of the remaining code outside
> > of the inner loop..
> > Your code would hold good if it is the last piece of code in my outer
> > loop(for loop). That means it would be good if as soon as my inner loop
> > ends, my outer loop ends too.
> >
> > Not saying that your code is wrong but your code will go down and
> > execute my remaining statements after the inner loop though I dont want
> > it to. If I wanted to do that then I wouldnt want a 'continue' like
> > working, now would I ?
> >
> > Please let me know if I am not understanding correctly and have
> > misinterpreted anything.
> > thanks & regards
> > - Rahul
>
>
>
Daniel,
I try to stay away from GOTO. GOTOs are not evils and are helpful
sometimes but still I dont like to use them. I avoid them as much as
possible.
I was trying to find out if SQL has any keyword that is equivalent of
'continue' in C. C has GOTO too and I have always wanted to avoid that.
thanks
 |
 |