Comments on: SQL SERVER – Fix: Error: 147 An aggregate may not appear in the WHERE clause unless it is in a subquery contained in a HAVING clause or a select list, and the column being aggregated is an outer reference

By: Raul

Raul — Wed, 14 Nov 2012 21:40:53 +0000

Amazin!!!, i was stcke for the same mistake, so helpful!!!!

By: Riandi

Riandi — Sat, 03 Nov 2012 17:57:55 +0000

thanks boss it work from me in this my case

By: Amit Srivastava

Amit Srivastava — Tue, 19 Jun 2012 09:47:10 +0000

with cte as
(select row_number over(order by ShipDate DESC)ID,* from [Sales].[SalesOrderHeader])
Select * from cte where id=1

By: Venkat Kilari

Venkat Kilari — Fri, 15 Jun 2012 10:13:40 +0000

Hi Sir,

SELECT TOP 1 * FROM [Sales].[SalesOrderHeader] ORDER BY ShipDate DESC

I Think this is the best way in performance wise..

By: Reggie

Reggie — Wed, 06 Jun 2012 19:57:46 +0000

I would say this is the right way to do it. Not to forget that MAX function will have a significant impact on the overall performance (in the absence of a nolock it has the potential of locking the table as well – ofc this is only when the table contains large amount of data).

By: Chirag Satasiya

Chirag Satasiya — Wed, 06 Jun 2012 12:01:23 +0000

Hi pinal sir,

Alternative to above solution :

SELECT TOP 1 * FROM [Sales].[SalesOrderHeader] ORDER BY ShipDate DESC

By: Ramdas

Ramdas — Mon, 04 Jun 2012 18:51:37 +0000

There are multiple ways to do the same thing in SQL. One of the things one could do is instead of thinking in syntactical fashion is to start with the data and see where one needs to get to that could help one to get different solutions.

By: Jorge

Jorge — Mon, 04 Jun 2012 16:42:22 +0000

Nice alternative, especially if I have to sort by “Ship Date” once

By: aas4mis

aas4mis — Mon, 04 Jun 2012 13:54:27 +0000

WITH Max_Ship_Date AS (
SELECT Date_Shipped = MAX(ShipDate)
FROM SalesOrderHeader
)
SELECT *
FROM SalesOrderHeader
INNER JOIN Max_Ship_Date ON
SalesOrderHeader.ShipDate = Max_Ship_Date.Date_Shipped

By: Hemal Shah

Hemal Shah — Mon, 04 Jun 2012 07:10:19 +0000

Hello pinal,

its very nice post.

There is one another way to do this.

http://techtreasure.in/2012/05/28/alternate-way-to-find-minmax-using-row_number/

By: Prakash

Prakash — Mon, 04 Jun 2012 05:11:31 +0000

Is there any performance issue if the data is growth in SalesOrderHeader, because we are using same table reference (SalesOrderHeader)

By: Alexey Rokhin

Alexey Rokhin — Mon, 04 Jun 2012 04:29:01 +0000

select top (1) with ties * from [Sales].[SalesOrderHeader] order by ShipDate desc

By: Manjuke Fernando

Manjuke Fernando — Sun, 03 Jun 2012 14:58:59 +0000

** Common Table Expression. Sorry for the spelling mistake..

By: Manjuke Fernando

Manjuke Fernando — Sun, 03 Jun 2012 14:56:39 +0000

How about using a Common TablenExpression, instead of having the inline sub query?