Yes, sorry, you are correct. I am actually grouping on that other column. I'll
take a look at this and see if it works for me. Thanks!
Michael
On Jul 26, 2010, at 6:10 PM, Geert-Jan Brits wrote:
> Aren't you grouping on IDt?
>
> something like ? :
> select t2.IDt,t2.ID,t2.Num,max(t2.version)
Aren't you grouping on IDt?
something like ? :
select t2.IDt,t2.ID,t2.Num,max(t2.version) from table1 as t1, tabl2 as t2
where t1.num=t2.num and t1.state!='new' group by t2.IDt
Cheers,
Geert-Jan
2010/7/26 Michael Stroh
> Hi everyone and thanks in advance for the help. I have a query that I'd
>
You'll need to use the technique described here:
http://dev.mysql.com/doc/refman/5.0/en/example-maximum-column-group-row.html
-Original Message-
From: Michael Stroh [mailto:st...@astroh.org]
Sent: Monday, July 26, 2010 2:50 PM
To: MySql
Subject: Yet another query question
Hi eve
Hi everyone and thanks in advance for the help. I have a query that I'd like to
perform using two tables but am not sure what the best way to perform it short
of creating a loop in my code and performing multiple queries.
I have two tables. The first table acts as a master table of sorts and Num
Thanks to everyone for their help. Using Nigel's suggestion, I was able to
gather all the summary data in one query. Those nested if()'s are really
useful!
FWIW, you can see the summary stats at http://rockets.phillipsoasis.com
Just click on Hopi Rockets and scroll to the bottom of the page. My
Nigel,
Again, thanks - that is the "rule of thumb" I was looking for!
Mark
On Wednesday 14 December 2005 09:57 am, nigel wood wrote:
> Mark Phillips wrote:
> >2. Generally, what is the most "efficient" way to do this? Is is better to
> >issue more queries that gather the "calculated data" or bet
Nigel,
Thanks!
Mark
On Wednesday 14 December 2005 09:42 am, nigel wood wrote:
> Mark Phillips wrote:
> >Flights
> >+---+--+--+
> >
> >| flight_id | data1_id | data2_id |
> >
> >+---+--+--+
> >
> >| 1 |1 |1 |
> >| 2 |
PM
To: MYSQL List
Subject: YAQQ (Yet Another Query Question)
I am using MySQL 4.0.x on a Linux machine with a JSP/Servlet front-end to
display the data.
I have a table with experimental data for each flight of a rocket.
Conceptually, it looks like (with many more columns):
Flights
Mark Phillips <[EMAIL PROTECTED]> wrote on 12/14/2005 11:31:03
AM:
> I am using MySQL 4.0.x on a Linux machine with a JSP/Servlet front-end
to
> display the data.
>
> I have a table with experimental data for each flight of a rocket.
> Conceptually, it looks like (with many more columns):
>
Mark Phillips wrote:
2. Generally, what is the most "efficient" way to do this? Is is better to
issue more queries that gather the "calculated data" or better to issue one
query for the raw data and then do the calculations in Java? I am sure there
are many factors that effect the answer to
Mark Phillips wrote:
Flights
+---+--+--+
| flight_id | data1_id | data2_id |
+---+--+--+
| 1 |1 |1 |
| 2 |1 |3 |
| 3 |1 |1 |
| 4 |2 |2 |
| 5 |
I am using MySQL 4.0.x on a Linux machine with a JSP/Servlet front-end to
display the data.
I have a table with experimental data for each flight of a rocket.
Conceptually, it looks like (with many more columns):
Flights
+---+--+--+
| flight_id | data1_id | data2_id |
+-
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