asked on

get column contains highest value

Hi,

1. How to get the column which contains the highest value?
table with column as monday, tuesday, wednesday, thursday, friday, saturday, sunday

here's where i'm at now,
SELECT max(*) FROM (
select sum(monday),sum(tuesday),sum(wednesday),sum(thursday), sum(friday),sum(saturday),sum(sunday)
) from required

Please only standard ansi sql query.

Thanks,
Lynnton

SOLUTION

Lowfatspread

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boblah

Hi lynnton,

Can' t think of a clever way, so:

SELECT
CASE
WHEN
sum(monday)>sum(tuesday) AND
sum(monday)>sum(wednesday) AND
sum(monday)>sum(thursday) AND
sum(monday)>sum(friday) AND
sum(monday)>sum(saturday) AND
sum(monday)>sum(sunday)
THEN sum(monday)
WHEN
sum(tuesday)>sum(monday) AND
sum(tuesday)>sum(wednesday) AND
sum(tuesday)>sum(thursday) AND
sum(tuesday)>sum(friday) AND
sum(tuesday)>sum(saturday) AND
sum(tuesday)>sum(sunday)
THEN sum(tuesday)
WHEN
sum(wednesday)>sum(monday) AND
sum(wednesday)>sum(tuesday) AND
sum(wednesday)>sum(thursday) AND
sum(wednesday)>sum(friday) AND
sum(wednesday)>sum(saturday) AND
sum(wednesday)>sum(sunday)
THEN sum(wednesday)
WHEN
sum(thursday)>sum(monday) AND
sum(thursday)>sum(tuesday) AND
sum(thursday)>sum(wednesday) AND
sum(thursday)>sum(friday) AND
sum(thursday)>sum(saturday) AND
sum(thursday)>sum(sunday)
THEN sum(thursday)
WHEN
sum(friday)>sum(monday) AND
sum(friday)>sum(tuesday) AND
sum(friday)>sum(wednesday) AND
sum(friday)>sum(thursday) AND
sum(friday)>sum(saturday) AND
sum(friday)>sum(sunday)
THEN sum(friday)
WHEN
sum(saturday)>sum(monday) AND
sum(saturday)>sum(tuesday) AND
sum(saturday)>sum(wednesday) AND
sum(saturday)>sum(thursday) AND
sum(saturday)>sum(friday) AND
sum(saturday)>sum(sunday)
THEN sum(saturday)
ELSE
sum(sunday)
END
FROM required

Cheers!

boblah

Lowfatspread,

Nice! very cute.

Not sure about performance, tho'.

lynnton

ASKER

Lowfatspread,

error message on visual basic.
"Method of 'open' of 'Object _Recordset ' failed

Thanks,
Lynnton

boblah

Use query analyser to make sure the query works, get more detailed error messages if not, and check it's performance etc.

lynnton

ASKER

Lowfatspread,

By the way i'm using ms access as database.

Thanks,
Lynnton

lynnton

ASKER

boblah,

Same error message with your awsome query friend.

Thanks,
Lynnton

boblah

Ok, access, that makes a difference, try:

SELECT
SWITCH(
sum(monday)>sum(tuesday) AND
sum(monday)>sum(wednesday) AND
sum(monday)>sum(thursday) AND
sum(monday)>sum(friday) AND
sum(monday)>sum(saturday) AND
sum(monday)>sum(sunday)
, sum(monday),

sum(tuesday)>sum(monday) AND
sum(tuesday)>sum(wednesday) AND
sum(tuesday)>sum(thursday) AND
sum(tuesday)>sum(friday) AND
sum(tuesday)>sum(saturday) AND
sum(tuesday)>sum(sunday)
, sum(tuesday),

sum(wednesday)>sum(monday) AND
sum(wednesday)>sum(tuesday) AND
sum(wednesday)>sum(thursday) AND
sum(wednesday)>sum(friday) AND
sum(wednesday)>sum(saturday) AND
sum(wednesday)>sum(sunday)
, sum(wednesday),

sum(thursday)>sum(monday) AND
sum(thursday)>sum(tuesday) AND
sum(thursday)>sum(wednesday) AND
sum(thursday)>sum(friday) AND
sum(thursday)>sum(saturday) AND
sum(thursday)>sum(sunday)
, sum(thursday),

sum(friday)>sum(monday) AND
sum(friday)>sum(tuesday) AND
sum(friday)>sum(wednesday) AND
sum(friday)>sum(thursday) AND
sum(friday)>sum(saturday) AND
sum(friday)>sum(sunday)
, sum(friday),

sum(saturday)>sum(monday) AND
sum(saturday)>sum(tuesday) AND
sum(saturday)>sum(wednesday) AND
sum(saturday)>sum(thursday) AND
sum(saturday)>sum(friday) AND
sum(saturday)>sum(sunday)
, sum(saturday),

true,
sum(sunday)
)
FROM required

Also, if that doesn't work, then try it in the access front end first to shake it down, or see if the problem is with the query or the ADO code

lynnton

ASKER

boblah,

It works, no errors, also no results. (just a single column with no data)

Thanks,
Lynnton

ASKER CERTIFIED SOLUTION

boblah

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lynnton

ASKER

boblah,

Sad to say samething i think this query will help us..

SQL = "SELECT TOP 1 * FROM " & _
"( " & _
"SELECT Monday as DayName, SUM(Monday) As DaySum FROM required " & _
"Union All " & _
"SELECT Tuesday, SUM(Tuesday) FROM required " & _
"Union All " & _
"SELECT Wednesday, SUM(Wednesday) FROM required " & _
"Union All " & _
"SELECT Thursday, SUM(Thursday) FROM required " & _
"Union All " & _
"SELECT Friday, SUM(Friday) FROM required " & _
"Union All " & _
"SELECT Saturday, SUM(Saturday) FROM required " & _
"Union All " & _
"SELECT Sunday, SUM(Sunday) FROM required " & _
") As B ORDER BY Daysum"

but it returns an error message "you tried to execute a query that does not include the specified expression
'DyaName' as part of the aggregate function."

Thanks,
Lynnton

lynnton

ASKER

got it !!!

here's the working version.

SQL = "SELECT top 1 * FROM " & _
"( " & _
"SELECT 'Monday' as DayName, SUM(Monday) As DaySum FROM required " & _
"Union All " & _
"SELECT 'Tuesday', SUM(Tuesday) FROM required " & _
"Union All " & _
"SELECT 'Wednesday', SUM(Wednesday) FROM required " & _
"Union All " & _
"SELECT 'Thursday', SUM(Thursday) FROM required " & _
"Union All " & _
"SELECT 'Friday', SUM(Friday) FROM required " & _
"Union All " & _
"SELECT 'Saturday', SUM(Saturday) FROM required " & _
"Union All " & _
"SELECT 'Sunday', SUM(Sunday) FROM required " & _
" As B) ORDER BY Daysum desc"