Thread: What is the best way to force character data to upper case
I am wondering what the best way is to force character data to a specific case, like upper case for example. Is a trigger or rule the only option? Would a check constraint be better or faster than using rules or triggers, knowing that a check constraint puts the onus back on the client code to ensure the data is in the correct case?
On Wed, Feb 1, 2012 at 10:09 PM, Dennis <dennis@kabonkulator.com> wrote:
I am wondering what the best way is to force character data to a specific case, like upper case for example. Is a trigger or rule the only option? Would a check constraint be better or faster than using rules or triggers, knowing that a check constraint puts the onus back on the client code to ensure the data is in the correct case?
For something like this I would think triggers would be more robust and I wouldn't expect the performance overhead to be that great.
Best Wishes,
Chris Travers
On 02/02/2012 06:09, Dennis wrote: > I am wondering what the best way is to force character data to a > specific case, like upper case for example. Is a trigger or rule the > only option? Would a check constraint be better or faster than using > rules or triggers, knowing that a check constraint puts the onus back on > the client code to ensure the data is in the correct case? Use the upper() function. http://www.postgresql.org/docs/9.1/static/functions-string.html Ray. -- Raymond O'Donnell :: Galway :: Ireland rod@iol.ie