SOLVED:
I changed my query to include max(t1.dt_aud_rec) instead of t1.dt_aud_rec.
I had guessed that it required just a tweak here and there...
Does anybody have any other suggestions apart from this??
Thanks,
Anoop
On 6/2/05, Anoop kumar V <[EMAIL PROTECTED]> wrote:
>
> OK - I have found the cause of the inconsistency -
>
> Whenever I have more than one record which has name_rec_type as
> 'Assignment' I do not get any results (I get an empty result)
> But if I have only one Assignment record then it returns the correct row.
>
> Question is: How can I overcome this - I just need the id_secr_rqst if and
> only if it has the latest name_rec_type as 'Assignment' - I do not care what
> the earlier records contained.
>
> help please,
> Anoop
>
> On 6/2/05, Anoop kumar V <[EMAIL PROTECTED]> wrote:
> >
> > Hi mysql-ers,
> >
> > I need help in a basic query:
> >
> > I have this table:
> >
> > select * from isr2_aud_log where
> > id_secr_rqst IN ('TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF')
> > --and name_rec_type = 'Assignment'
> > order by id_secr_rqst, dt_aud_rec
> >
> >
> > +------------------------------------------------+---------------------+---------------------+
> > | id_secr_rqst | dt_aud_rec | name_rec_type |
> >
> > +------------------------------------------------+---------------------+---------------------+
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:30:46 |
> > Submission |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:30:46 |
> > Exception Requested |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:30:46 |
> > Exception Resource |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:33:22 |
> > Director Approval |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:34:43 |
> > Assignment |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:35:03 |
> > Risk Assessment |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:36:03 |
> > Assignment |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:37:40 |
> > SERB Approval |
> > | TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF | 2005-05-20 14:39:29 |
> > Assignment |
> >
> > +------------------------------------------------+---------------------+---------------------+
> >
> > and i am using this query:
> >
> > SELECT t1.id_secr_rqst task_id, MAX(t2.dt_aud_rec) AS latest,
> > t1.dt_aud_rec AS date1
> > FROM isr2_aud_log t1, isr2_aud_log t2 WHERE t1.id_secr_rqst =
> > t2.id_secr_rqst
> > AND t1.name_rec_type = 'Assignment' AND
> > t1.id_secr_rqst IN (
> > 'TASK23C6054B9D416C08:1284FD4:103FB047DF1:-7ECF')
> > GROUP BY t2.id_secr_rqst HAVING date1 = latest
> >
> > What I expected to get is the id_secr_rqst which has the last
> > name_rec_type = 'Assignment'
> > In this case there is only one id_secr_rqst and it has the last
> > name_rec_type as 'Assignment'. But I do not seem to get consistent results.
> > As I am using an older version of mysql I do not have the liberty to use
> > subqueries and will have to do everything using joins only.
> >
> > The problem I am facing is that this query only sometimes returns rows
> > and most of the time I get an empty result set. This table does not have
> > any
> > primary keys.
> >
> > Can somebody please point out what is the mistake I am doing - I think
> > it just needs a tweak here and there (I hope..)
> >
> > Thanks,
> > Anoop
> >
> > --
> > Thanks and best regards,
> > Anoop
>
>
>
>
> --
> Thanks and best regards,
> Anoop
>
--
Thanks and best regards,
Anoop
