The coalesce function can help with nulls. It takes a list of attributes or literals and returns the first non-null value. I use it like this: select coalesce(numeric_attrib, 0) from some_table; --rob ----- Original Message ----- From: "Bruno Wolff III" <[EMAIL PROTECTED]> To: "postgresql" <[EMAIL PROTECTED]> Sent: Wednesday, January 24, 2001 7:49 PM Subject: Re: concatenate 2 numeric columns.. > I saw some similar things when using to_char on columns will null > values. I used a case statement to check for nulls in 7.0.3. When > I switched to using 7.1beta3, the problem was fixed. > > On Thu, Jan 25, 2001 at 01:42:44AM +0530, > Anand Raman <[EMAIL PROTECTED]> wrote: > > hi guys > > I wish to concatenate 2 columns of numeric type.. How can it be done.. > > > > > > Earlier i tried using the to_char function but it seems to be crashing > > the backend. Any other option will be greatly appreciated.. > > > > > > select to_char(length,'9999D99') || to_char(breadth,'9999D99') from exhibit_distributions > > > > This query seems to be crashing the backend when executed over the > > table.. However when constrained using a appropriate where clause it > > works.. > > > > Any other approach??. > > > > Thanx > > Anand > > >