On 09/08/10 10:05 PM, Dennis Gearon wrote:
I would like to have a query replace a NULL in a field with a truncated value
from one field based on a size passed in?
Basically, I'd like to be able to generate a 'short title' for a record based
on either the user's input for a short title, or a turncated 'normal title' at
query time.
Would this be very expensive processor timewise?
I might just feed the whole long title in and have the display properties of
the browser truncate it.
shoudl be quite simple with coalesce... say you have a short_title
field that might be null, and long_title is the full title...
SELECT ...., COALESCE(short_title, SUBSTRING(long_title FOR $1)),....
where $1 is your passed in length.
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