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Re: Creating Trigger Using two Tables
Posted by: Peter Brawley
Date: May 29, 2012 09:53AM

You're vague on join criteria, but is this what you mean?

insert into table1
select table2.*
from table2 a
left join table1 b using (service,numbers,prefer)
where a.ops='A' and b.service is null;

delete table2
from table2 a
join table1 b using(service,numbers,prefer)
where a.ops='D';

PB

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