Usage of unpivot in sqlserver

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Hi all,

I want to find out maximum value in a row. So, Iam using unpivot to find out the max value but it is giving an error. Can any one please help me. Thanks in advance.

SQL

CREATE TABLE MAXVALUE
(
ID INT IDENTITY,
A INT,
B INT,
C INT
)

this is myquery :

SQL

SELECT MAX(VAL) AS MAXVALUE_ROW FROM
    (SELECT *FROM MAXVALUE UNPIVOT
    (Id for [max(val)] IN
    ([A],[B],[C])
    ))

Error:

Msg 102, Level 15, State 1, Line 5
Incorrect syntax near ')'.

Posted 27-Dec-12 18:51pm

bapu_reddy

Updated 28-Dec-12 0:58am

v4

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Comments

Sandeep Mewara 28-Dec-12 4:24am

What error? Please share.

bapu_reddy 28-Dec-12 4:54am

Msg 102, Level 15, State 1, Line 5
Incorrect syntax near ')'.

Aarti Meswania 28-Dec-12 5:17am

can you give some input output records?

2 solutions

Solution 1

try this...

SQL

select id,COL,VAL from
(
	SELECT Row_Number() over(order by val desc) as srno, id,COL,VAL
	FROM
	  (SELECT * FROM MAXVALUE ) as p
	UNPIVOT
	  (VAL for COL IN ([A],[B],[C])) as b
) as t where srno=1

Happy Coding!
:)

Posted 27-Dec-12 23:46pm

Aarti Meswania

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FranklinRemo · Accepted Answer · 2012-12-28T17:52:00

hi , sorry to say i don't have time to give solution for your post , i have one sample code .
please have a look on this

UNPIVOT:
-------
Used to convert columns into rows

SQL

Create table tbl_stdmarksdata  (studentname nvarchar(100), I int, II int, III int, IV int, V int)
go

Insert into tbl_stdmarksdata (studentname,I,II,III,IV,V)
Select 'Vivek Johari',30,20,35, 40, 45
Union All
Select 'Chandra Singh',30,20,35,44, 80
Union All
Select 'Avinash Dubey',30,25,35,20, 39
Union All
Select 'Pankaj Kumar',33,29,30, 60, 50
go

select * from tbl_stdmarksdata
go
select studentname,Marks,Grade
from tbl_stdmarksdata
unpivot
(Marks for Grade in (I,II,III,IV,V) ) as tblunpvt