Re: append columns that are null - Mailing list pgsql-sql

From Gerwin Philippo
Subject Re: append columns that are null
Date
Msg-id 40ed43c9$0$559$e4fe514c@news.xs4all.nl
Whole thread Raw
In response to Re: append columns that are null  ("nobody" <nobody@nowhere.near.here>)
List pgsql-sql
I'd be out of work very soon :(

nobody wrote:
> You are welcome. Only if all problems were that simple ;-)...
> "Gerwin Philippo" <gerwin@vernet.nl> wrote in message
> news:40ecf718$0$36169$e4fe514c@news.xs4all.nl...
> 
>>THX! didn't know that one yet :)
>>
>>nobody wrote:
>>
>>>"Gerwin Philippo" <gerwin@vernet.nl> wrote in message
>>>news:40ec1043$0$559$e4fe514c@news.xs4all.nl...
>>>
>>>
>>>>I have function that appends 2 columns, like
>>>>"new.field1 = new.field2||new.field3",
>>>>but when field 3 is null, then the entire outcome is null, while I
>>>>expected just field2, since when I append nothing to field2, I get
>>>>field2, right?
>>>>Is this standard behaviour, and if so, is there another append function
>>>>that I can use that doesn't behave like this?
>>>
>>>
>>>COALESCE is your friend...
>>>
>>>
> 
> 
> 


pgsql-sql by date:

Previous
From: David Inglis
Date:
Subject: Help with sql statement grouping and distinct
Next
From: "Sarah Tanembaum"
Date:
Subject: Secure DB Systems - How to