asked on

Dynamic way to turn rows (which are already in cross-tab format) into columns?

The recordset I have is like this:
Date Type North_Cnt West_Cnt
5/1/09 A 20 30
5/1/09 B 40 25
5/2/09 A 30 20
5/2/09 B 35 45
...
I want to turn it into this way:
Date Type North_Cnt West_Cnt Date Type North_Cnt West_Cnt
5/1/09 A 20 30 5/2/09 A 30 20
5/1/09 B 40 25 5/2/09 B 35 45

so if there are 10 dates then there will be 10 sections each of which has 4 columns (date, type, North_cnt, West_cnt) so totally 40 columns.

I want to try Pivot in 2005 but doubt it would work. I guess the only way is to use dynamic sql?
Has anyone done something similar like this before?

ASKER CERTIFIED SOLUTION

BrandonGalderisi

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

qinyan

ASKER

Thanks! This is a very helpful article, the only problem is that it can only have one pivot_value_column in the aggregate. it doesn't do both sum(Tcs_quantity) and sum(tcs_quantity) together in the same pivot in the example, but this function is what i need.

BrandonGalderisi

qinyan

ASKER

actually since my recordset is already in pivot format i'm looking for something like this:
select * from
(
select * from myTable
where date=5/1/09'
) a
join
(
select * from myTable
where date=5/2/09'
) b
on a.type=b.type

and make it dynamic:
declare @min datetime
select @min = min(date) from myTable

declare @max datetime
select @max=max(date) from myTable

declare @sql varchar(max)
select @sql = 'SELECT * from (select * from myTable where date=, ' + CHAR(13),

while @min<=@max
begin
SET @sql = @sql + ''

SET @min = @min + 7 ;

end

qinyan

ASKER

I haven't worked with PIVOT a lot, but I'll assume that "sum(Tcs_quantity) and sum(tcs_quantity)" are acutally two different columns. You MAY need to do two pivot statements. Or two whole selects, built as derived tables, then joined together.

Yes I can do it that way and that's the only way to do it if using pivot, but I was just trying to avoid two or multiple pivot statements as I have 4 columns which i need to do aggregation on. That's why i was thinking about other ways in dynamic sql.

Thanks!