SELECT MAX(Price),name
FROM
(
SELECT TOP 2 Price
FROM Products
ORDER BY Price DESC
)ProductDerivedTable

Is there any function to replace “space” in a table with null or some other values.
Like I need to select a column(column1) which is having “space” in it and i have to replace that column(column1) with another column(column2) if any null or space is there in the 1st column(column1).
I don’t want to use “if” and “case”, without this is there any other way.
Kindly suggest me.

Thanks and regards,
Maria

In the reference point number 6, we are missing the alias name for the derived table

It should have been something like

SELECT MAX(Price)
FROM
(
SELECT TOP 2 Price
FROM Products
ORDER BY Price DESC
)ProductDerivedTable

its urgent .
Thanks and Regards

Ashsih Gupta

WHILE (SELECT DISTINCT DATE FROM HOLIDAYS H WHERE DATE >= @FROM_DATE AND DATE <= @TO_DATE) IS NOT NULL
BEGIN
SET @H_DAY = @H_DAY + DATEPART(d,H.DATE)
END

Regards,

I use views to represent data for consumption by Application software. The Application user (say “AppUser”) is NOT the dbo. So, access is only granted to views and columns allowed by the dbo. This is a powerful layer of abstraction.

Also, for .Net developers using LINQ. Using a plural on entity names is nice. A LIST has a single row object of Customer. I went with singular entity names for many years and have since changed my thinking.

Why is using “” as a comparison operator less efficient than using a set operator?

thanks,
Chris

Scott Mitchell has a good article on paging large result sets: http://www.4guysfromrolla.com/webtech/042606-1.shtml

If you’re using SQL Server 2000, also check out this post: http://forums.asp.net/t/1050460.aspx

The basis for this request is that I have a small website that was working fine for displaying results, but now the result set is soo huge that pages are performing badly (on occasion timing out).

What I would like to do it select say, the top 500 rows for page one, second 500 rows for page 2 etc etc.

Whilst I am aware of offset commands in things like MySQL, I have not come accross anything like this in SQL Server.

Does anyone know of any nice ways to do this?

Thanks in advance, Doug

cond 1: row1 datetime1 <= datetime2

cond 2: row2 datedtime1<= row1 datetime2

here i need to find leasure time using row1 datetime2 – row 2 datetime1

row1 2007-09-20 15:30:29.000 2007-09-20 16:35:29.130
row2 2007-09-20 15:31:29.000 2007-09-20 16:35:34.130
row3 2007-09-20 15:32:34.000 2007-09-20 16:35:49.130
row4 2007-09-20 15:33:49.000 2007-09-20 16:35:54.130
row5 2007-09-20 15:34:34.000 2007-09-20 17:06:34.130
row6 2007-09-20 15:35:34.000 2007-09-20 17:06:39.130
row7 2007-09-20 15:36:34.000 2007-09-20 17:36:34.130
row8 2007-09-20 15:37:34.000 2007-09-20 17:36:39.130
row9 2007-09-20 15:38:34.000 2007-09-20 18:06:34.130
row10 2007-09-20 15:39:34.000 2007-09-20 18:06:39.130
row11 2007-09-20 15:40:34.000 2007-09-20 18:35:49.130
row12 2007-09-20 15:41:49.000 2007-09-20 18:35:54.130

Please give me select query for this

My question is regarding cursors. Everywhere I read do not use cursors instead use while loops. I did a test with 2.6 million records and the cursor took 4 minutes and the while loop took 12 minutes.

I am using SQL Server 2005

Create PROCEDURE [Company].[uspVendorKeyIDGets_IMC_whileloop]
@Vendor VARCHAR(50),
–@KeyIDServer VARCHAR(50),
@KeyIDBlockSize INT = 100

– exec [Company].[uspVendorKeyIDGets_IMC] ‘iusacredit’,100
WITH EXECUTE AS CALLER
AS
SET NOCOUNT ON

DECLARE @N INT, @Index INT, @Loop INT, @KeyID INT, @VendorFeedID INT
DECLARE @KeyIDList VARCHAR(8000)
DECLARE @StartTime DATETIME
DECLARE @iCustLoopControl INT

select @VendorFeedID=VendorFeedID FROM dbo.VendorFeed WHERE Name=@Vendor
IF @@ROWCOUNT 1
BEGIN
return
END

SET @N = 200 — for testing
SET @Loop = @KeyIDBlockSize

SET @StartTime = GETDATE()
PRINT Convert(varchar(20),@StartTime) + ‘ StartTime’

– replace CURSOR with WHILE LOOP
SELECT @iCustLoopControl = 1

– retrieve the first row
SELECT @Keyid = MIN(keyid)
FROM company.companykeyid with(nolock)
WHERE VendorFeedID = 40

– start the main processing
WHILE @iCustLoopControl = 1
BEGIN
SET @Index = 1
SET @KeyIDList = CONVERT(VARCHAR(10), @KeyID)

— start the nested loop for 100 records
WHILE @Index @Keyid

SET @Index = @Index + 1

IF ISNULL(@KeyID,0) = 0
BEGIN
SET @iCustLoopControl = 0
BREAK
END
END
SET @StartTime = GETDATE()
END

PRINT Convert(varchar(20),GETDATE()) + ‘ EndTime’

CREATE PROCEDURE [Company].[uspVendorKeyIDGets_IMC_cursor]
@Vendor VARCHAR(50),
–@KeyIDServer VARCHAR(50),
@KeyIDBlockSize INT = 100

– exec [Company].[uspVendorKeyIDGets_IMC_cursor] ‘iusacredit’,100
WITH EXECUTE AS CALLER
AS
SET NOCOUNT ON

DECLARE @N INT, @Index INT, @Loop INT, @KeyID INT, @VendorFeedID INT
DECLARE @KeyIDList VARCHAR(8000)
DECLARE @StartTime DATETIME
DECLARE @iCustLoopControl INT

select @VendorFeedID=VendorFeedID FROM dbo.VendorFeed WHERE Name=@Vendor
IF @@ROWCOUNT 1
BEGIN
return
END

SET @N = 200 — for testing
SET @Loop = @KeyIDBlockSize

SET @StartTime = GETDATE()
PRINT Convert(varchar(20),@StartTime) + ‘ StartTime’

— Make it forward_only static so that a temp company is made and used otherwise we get tripped up by other loaders
DECLARE KeyID_Cursor CURSOR FORWARD_ONLY STATIC –FAST_FORWARD
FOR SELECT DISTINCT KeyID FROM Company.CompanyKeyID with(nolock) WHERE VendorFeedID = 40 ;

OPEN KeyID_Cursor
FETCH NEXT FROM KeyID_Cursor INTO @KeyID
WHILE @@FETCH_STATUS = 0
BEGIN
SET @Index = 1
SET @KeyIDList = CONVERT(VARCHAR(10), @KeyID)
WHILE @Index

Thank you sir.. it is very usefull .. it helps me very much ..
keep updating .. once again thanks

Salam