Thread: descending indexes
I am attempting to port an application that makes extensive use of being able to scroll forwards or backwards through a large database from a given, user-defined point where the key is a CHAR(15) user-defined field, arbitrarily & frequently inserted & deleted. Creating an index on the field speeds up the scroll forwards, but I'm having to jump through hoops to scroll backwards. I have searched and cannot find any reference to a simple method to find the previous key using the index. Any suggestions? steve
Steve Owen <steve@keymarksystems.com> writes: > Creating an index > on the field speeds up the scroll forwards, but I'm having to jump > through hoops to scroll backwards. Why? A cursor would work in either direction, and so can any other method I can think of. How are you trying to do this, exactly? regards, tom lane