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Re: How to test something using ROLLBACK TRANSACTION

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On Thu, Sep 4, 2008 at 1:17 PM, William Garrison <postgres@xxxxxxxxxxxx> wrote:
> Coming from MS SQL server, if I ever change anything vital on a production
> system, or do any kind of major hackery on my own, I wrap it in a
> transaction first:
>
> BEGIN TRANSACTION;
> DELETE FROM vital_information WHERE primary_key = 10;
> ROLLBACK TRANSACTION;
>
> I then make sure that the result comes back and says
>   1 row(s) modified
> or something equally reassuring.  I have horror stories where DBAs
> fat-fingered something and deleted data.  But when I do this in pgadmin3, I
> get a dissatisfying result:

Have you tried psql?  That's all I usually use.  Here's what I get
from inside psql:

smarlowe=# begin;
BEGIN
smarlowe=# delete from test where i between 4 and 6;
DELETE 3
smarlowe=# rollback;
ROLLBACK


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