On Oct 1, 2013, at 12:23 PM, Adrian Klaver <adrian.klaver@gmail.com> wrote:
> 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.
Ah... yes. I forgot you can see the changes within the same transaction. Dohhh...
Thank you very much
Perry