Sean Lange (3/12/2013)
robertd 77391 (3/12/2013)
A simple way to do this:
update #Table1
set #Table1.SID = #Table2.aID
from #Table2
where #Table1.Sno = #Table2.Sno ;
I can't for the life me remember the details but there is an issue when you do an UPDATE FROM and the table being updated is not in the query. It is better to use the join method as demonstrated by Alan above.
I think what is needed for this would be this:
update #Table1
set SID = (SELECT #Table2.aID from #Table2 where #Table1.Sno = #Table2.Sno) ;