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  3. August 2011

Re: SQL question from an absolute SQL newbie

On 8/31/2011 3:08 AM, Morgan, Paul wrote:
Select *
from TCKTHIST a
where a.POST_DATE = dec( replace( char( current_date - 1 day, iso ), '-' , '' ), 8 ) // stolen from chuck's answer
and not exists( Select *
from NEWTCKTS b
where a.TICKET# = b.TICKET#
and a.CUSTOMER# = b.CUSTOMER#
and a.TRAN_DATE = b.TRAN_DATE )

You could do a funky join between TCKTHIST and NEWTCKTS instead of the exists( test if performance is a problem.

What's funky about an exception join? Especially since the fields have the same name, so you can use the USING clause (although the USING clause has other side effects you should be aware of).

Joe

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