Re: [GENERAL] AccessShareLock question

[Clayton Graf]

I think I got it...

I was just using

select * from table1;
select * from table2;
select * from tablen;

instead of

begin;
select * from table1;
select * from table2;
select * from tablen;
commit;

Using MS-SQLSERVER the begin trans is "implicit" at first update or delete
command. It is not necessary to "worry" about selects before the first
update or delete command. I got confused but I understand now. I guess :-)

Thank you,

Clayton


2009/12/19 Jaime Casanova <jcasa...@systemguards.com.ec>

> On Sat, Dec 19, 2009 at 10:58 AM, Clayton Graf <clayton.g...@gmail.com>
> wrote:
> > Ok, but this is really my problem: I cannot perform an ALTER TABLE with
> the
> > system in production mode, because the ALTER TABLE hangs due an
> > AccessShareLock.
>
> until the lock is released, are your selects all that long?
> besides, why are you ALTERing the table in production... i guess
> clients will suffer if the expect less or more columns than the ones
> they receive from the ALTERed table
>
> > We use two-tier mode,
>
> don't understand this
>
> > so is it necessary to shutdown all users before
> > perform an ALTER TABLE?
>
> no
>
> --
> Atentamente,
> Jaime Casanova
> Soporte y capacitación de PostgreSQL
> Asesoría y desarrollo de sistemas
> Guayaquil - Ecuador
> Cel. +59387171157
>



-- 
Clayton Graf