Comments on: SQL SERVER – OVER clause with FIRST _VALUE and LAST_VALUE – Analytic Functions Introduced in SQL Server 2012 – ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/ Personal Notes of Pinal Dave Thu, 23 May 2013 14:22:59 +0000 hourly 1 http://wordpress.com/ By: John_W http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-402834 Wed, 02 Jan 2013 18:01:25 +0000 http://blog.sqlauthority.com/?p=15683#comment-402834 Is there a way to ignore nulls, and use the last valid value?

]]> By: SQL SERVER – Weekly Series – Memory Lane – #007 « SQL Server Journey with SQL Authority http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-393530 Sat, 15 Dec 2012 01:31:59 +0000 http://blog.sqlauthority.com/?p=15683#comment-393530 [...] [...]

]]> By: SQL SERVER – Weekly Series – Memory Lane – #004 « SQL Server Journey with SQL Authority http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-379692 Sat, 24 Nov 2012 01:31:45 +0000 http://blog.sqlauthority.com/?p=15683#comment-379692 [...] FIRST_VALUE [...]

]]> By: SQL SERVER – Weekly Series – Memory Lane – #003 « SQL Server Journey with SQL Authority http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-375260 Sat, 17 Nov 2012 01:32:05 +0000 http://blog.sqlauthority.com/?p=15683#comment-375260 [...] Introduction to FIRST_VALUE and LAST_VALUE with OVER clause [...]

]]> By: SQL SERVER – Beginning New Weekly Series – Memory Lane – #002 « SQL Server Journey with SQL Authority http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-371931 Sat, 10 Nov 2012 01:31:52 +0000 http://blog.sqlauthority.com/?p=15683#comment-371931 [...] OVER clause with FIRST_VALUE and LAST_VALUE – Analytic Functions [...]

]]> By: John http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-343250 Wed, 12 Sep 2012 19:21:40 +0000 http://blog.sqlauthority.com/?p=15683#comment-343250 I am having similar query problem but i can’t slove using Fist and last value as SQL 2008 doesn’t support it….Can any one help me please………

Below is the table:

Col1 Col2 Col3 Col4
———– ———– ———– —————–
1 1 120 0.1243 ….1st Row
1 1 130 0.1211
1 1 140 0.1117
1 1 150 0.1298
1 1 160 0.1243
1 1 170 0.1180
1 1 180 0.1167
1 1 190 0.1191
1 1 200 0.1231
1 1 210 0.1185 ….10th Row
1 1 220 0.1287 ….11th Row
1 1 230 0.1058
1 1 240 0.1104
1 1 250 0.1270
1 1 260 0.1127
1 2 120 0.1191
1 2 130 0.1169
1 2 140 0.1101
1 2 150 0.1272
1 2 160 0.1125 …..20th Row

Output I am looking for is: Average(Col4) for every 10 rows with their starting and ending column values

Col1 StartCol2 EndingCol2 StartCol3 EndingCol3 Average(Col4)
———– ———– ———– ————- —————- —————–1 1 1 120 210 0.12066
1 1 2 220 160 0.11704

Let me know if any one has a question….

]]> By: SQL SERVER – 2012 – Summary of All the Analytic Functions – MSDN and SQLAuthority « Journey to SQLAuthority http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-202546 Wed, 23 Nov 2011 01:30:55 +0000 http://blog.sqlauthority.com/?p=15683#comment-202546 [...] FIRST_VALUE [...]

]]> By: Carlos Benito http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-195495 Mon, 14 Nov 2011 20:00:35 +0000 http://blog.sqlauthority.com/?p=15683#comment-195495 The PARTITION clause must be deleted.

]]> By: Carlos Benito http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-195479 Mon, 14 Nov 2011 19:37:11 +0000 http://blog.sqlauthority.com/?p=15683#comment-195479 In the article this query

SELECT s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty,
FIRST_VALUE(SalesOrderDetailID) OVER (PARTITION BY SalesOrderID
ORDER BY SalesOrderDetailID
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FstValue,
LAST_VALUE(SalesOrderDetailID) OVER (PARTITION BY SalesOrderID
ORDER BY SalesOrderDetailID
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) LstValue
FROM Sales.SalesOrderDetail s
WHERE SalesOrderID IN (43670, 43669, 43667, 43663)
ORDER BY s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty
GO

returns:

SalesOrderID SalesOrderDetailID OrderQty FstValue LstValue
43663 52 1 52 114
43667 77 3 52 114
43667 78 1 52 114
43667 79 1 52 114
43667 80 1 52 114
43669 110 1 52 114
43670 111 1 52 114
43670 112 2 52 114
43670 113 2 52 114
43670 114 1 52 114

this is wrong.

This query will return the result above

SELECT s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty,
FIRST_VALUE(SalesOrderDetailID) OVER (PARTITION BY 1
ORDER BY SalesOrderDetailID
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) FstValue,
LAST_VALUE(SalesOrderDetailID) OVER (PARTITION BY 1
ORDER BY SalesOrderDetailID
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) LstValue
FROM Sales.SalesOrderDetail s
WHERE SalesOrderID IN (43670, 43669, 43667, 43663)
ORDER BY s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty
GO

]]> By: Ashish Kadam http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-192912 Fri, 11 Nov 2011 05:52:39 +0000 http://blog.sqlauthority.com/?p=15683#comment-192912 Hi Pinal,
Thank you. It’s good and easily understood article.

]]> By: Nilesh Molankar http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-192825 Fri, 11 Nov 2011 03:22:17 +0000 http://blog.sqlauthority.com/?p=15683#comment-192825 Thank you. That explains it all.

]]> By: SQL SERVER – Puzzle to Win Print Book – Functions FIRST_VALUE and LAST_VALUE with OVER clause and ORDER BY « Journey to SQLAuthority http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-192764 Fri, 11 Nov 2011 01:32:26 +0000 http://blog.sqlauthority.com/?p=15683#comment-192764 [...] Comments GA_googleFillSlot("sqlauthority_728x90"); « SQL SERVER – OVER clause with FIRST _VALUE and LAST_VALUE – Analytic Functions Introduce… [...]

]]> By: Ramdas http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-192460 Thu, 10 Nov 2011 15:42:18 +0000 http://blog.sqlauthority.com/?p=15683#comment-192460 Interesting article and good observations.
Thank you

]]> By: Chirag Satasiya http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-192167 Thu, 10 Nov 2011 09:46:46 +0000 http://blog.sqlauthority.com/?p=15683#comment-192167 Hi pinal sir,
Thanks for this explanation.

We can say FIRST_VALUE and LAST_VALUE is advanced version of MIN and MAX functions of SQL Server with OVER function.
Till now if we want any column with with MIN or MAX we have to used group by clause.
And also with group by we have limited rows of data.

So its because of OVER function we got First_Value and Last_Value.

Regard$
Chirag Satasiya

]]> By: Nilesh Molankar http://blog.sqlauthority.com/2011/11/10/sql-server-over-clause-with-first-_value-and-last_value-analytic-functions-introduced-in-sql-server-2012-rows-between-unbounded-preceding-and-unbounded-following/#comment-192018 Thu, 10 Nov 2011 03:17:03 +0000 http://blog.sqlauthority.com/?p=15683#comment-192018 Sir,
I have one question :-
Referring to the diagram 3 of the article.

Do the LAST_VALUE and FIRST_VALUE functions take into account the max and min
values in the given set or they are just based out of the last and first
values depending on the sorting.

As in say if the order by was diff and on row 4 we had the SalesOrderDetailID = 80
and on row 5 we had it = 79. then what would be the LstValue of these rows
respectively.

Will it be (as given in the diagram)
Row 4 : 80
Row 5 : 80

or will it be
Row 4 : 80
Row 5 : 79

Thank you for this and all the articles on this site. they are really very very helpful.

–Nilesh

]]>