Not sure if this will work with MySQL (office uses a different database and
I can't get to real one to test it) but this seems to work:
select t1.name, tot=(t2.col1+t2.col2+t2.col3+t2.col4)
from table1 t1, table2 t2, table3 t3
where t1.id1 = t3.id1
and t2.id2 = t3.id2
order by tot desc
name tot
----- -----------
John 19
Fred 17
Bill 16
Looks like your totals are wrong!
You don't explain your application but wouldn't it be better to dispense with table3
and just have table2 as:
create table table2
(
id1 int,
id2 int,
rowlocation int auto_increment,
result int
)
table2
id1 id2 rowlocation result
1 1 1 1
1 1 2 4
1 1 3 5
1 1 4 6
2 2 5 3
2 2 6 2
2 2 7 8
2 2 8 6
3 3 9 4
3 3 10 9
3 3 11 2
3 3 12 2
This would simplify your select and reduce the join to two tables. Just a thought.
Please let me know if this doesn't work. I'll try it later with a proper (i.e. MySQL)
database.
Keith
Extranet
[EMAIL PROTECTED] - 08/02/2003 04:47
To: mysql
cc:
Subject: Help, Not sure my other email got through!
Not sure my other email got through, so here it is again, with an updated
description.
Hi,
I have a database with 3 names in it. In each of these names is 5
categories that have numbers in them. I want to be able to do a select and
total these numbers for each name, and then sort them in descending order.
I
have tried for over 6 hours tonight and no matter what I do, there is one
minor glitch. I am not supplying any code as I would like to know from you
people what the best way to go about this would be - as what I have done is
obviously not working.
TIA
i.e
This is what is in the database.
Table 1
ID1 NAME
1 Bill
2 John
3 Fred
Table 2
ID2 Col1 Col2 Col3 Col4
1 1 4 5 6
2 3 2 8 6
3 4 9 2 2
Database 3 is a reference file that ties them together - so I would have to
use a join in the select statement.
ID1 ID2
1 1
2 2
3 3
This is what I want to be able to show:
John 21
Fred 20
Bill 16
sql, query, queries, smallint
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