Re: Nullsif ? PG 9.1

2017-04-09 20:18 GMT+12:00 Patrick B <patrickbakerbr(at)gmail(dot)com>:

> Hi guys,
>
> I've got this select:
> SELECT split_part(n.node_full_path::text, '/'::text, 8)::integer AS id,
>
> However, not always I will get the 8th field, and because of that, i may
> get no data somethings.
>
> Example:
> /filesuser/client/27801123/attachment/4510/main
> /filesuser/client/1111/attachment/21314134/file/12312312312
> <(231)%20231-2312>/small/photo.jpg
>
> Note that, sometimes it only goes until the 7th splitted_part, not always
> i will get the 8th.
>
> How can I tell the select, if no 8th field is found, then returns null?
>
> Thanks!
> Patrick
>

Sorry guys.. Got it!
https://www.postgresql.org/docs/9.1/static/functions-conditional.html