Re: "Pretend" update

On 10/01/2013 10:16 AM, Perry Smith wrote:
> With "make" I can do "make -n" and it just tells me what it would do but doesn't actually do anything.
>
> How could I do that with SQL?
>
> I want to write a really complicated (for me) SQL UPDATE statement.  I'm sure I won't get it right the first time.
Isthere an easy way to not really make the changes? 
>
> I've thought about starting a transaction and then roll it back.  That would undo the changes.  But I won't be able
totell what the changes were. 

Assuming you are not doing this in a function, you can. Do UPDATE, then
SELECT to see your changes or not and then ROLLBACK.

>
> Thank you for your time,
> Perry
>


--
Adrian Klaver
adrian.klaver@gmail.com