Re: SQL - find 'missing' numbers

On 29-Sep-2015 10:58 -0600, Charles Wilt wrote:

<<SNIP>> there is (probably) still a performance benefit to having
the numbers table pre-generated instead of generating it on the fly
for every request. <<SNIP>>

The dynamically produced table as RCTE is a true-temporary
temporary-object and may easily outperform a reference to a pre-existing
TABLE of numbers, esp. if the data must be faulted. And nobody can
delete-from, insert-into, or update the data in the dynamic TABLE like they
potentially could with a permanent database file; perhaps onto which some
additional protections [e.g. triggers, ALWUPD(*NO) ALWDLT(*NO), etc.?]
should be placed, to prevent possible unexpected results.?

--
Regards, Chuck


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