Clark Evans wrote:
>
<snipped discussion of 'something || NULL ' returning non-NULL>
> However, I'm unaware of any other exceptions in the Oracle
> database on this issue. I believe that user defined functions
> are not allowed to have special NULL treatment -- perhaps
> Oracle has DECODE and NVL hard coded deep in the guts of
> their query processor, while the other functions arn't.
>
> Would a compromise be to add DECODE and NVL ?
What do DECODE and NVL do?
Ross
--
Ross J. Reedstrom, Ph.D., <reedstrm(at)rice(dot)edu>
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St., Houston, TX 77005