Thomas Munro <munro@ip9.org> writes:
> SQL:2003 introduced the function NEXT VALUE FOR <sequence>. Google
> tells me that at least DB2, SQL Server and a few niche databases
> understand it so far. As far as I can tell there is no standardised
> equivalent of currval and setval (but I only have access to second
> hand information about the standard, like articles and the manuals of
> other products).
Have you checked the archives about this? My recollection is that one
reason it's not in there (aside from having to reserve "NEXT") is that
the standard-mandated semantics are not the same as nextval().
regards, tom lane