How to upgrade the 2 columns on table A with 2 passes to table B
Hi allI am confused to be updated more than 1 passes from tableB to tableA.
Simple column is as easy as this:
setting a day TableA set col1 = (select col1 from TableB where ssno = 100)
where ssno = 100;
But the 2 column updates, I can't do this:
setting a day of whole TableA (col1, col2) = (select col1, col2 from TableB where ssno = 100)
where ssno = 100;
Help, please
Thank you very much
Hello
KinsaKaUy? wrote:
... Does the above work?
Try it and see.
... I'm confused with many contructs:(pouvez_vous me dire qui est mieux et plus vite?)
No, I can't; not without a lot more information. It depends on your tables and your index and also what do you mean by "better."
If you are really interested in performance, start with the links on the forum FAQ {message identifier: = 9360003}
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