Generating Random Numbers on Every Row with RAND()

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Generating Random Numbers on Every Row with RAND()

Author

Topic

Rock_query
Yak Posting Veteran

55 Posts

Posted - 2013-05-01 : 17:26:16

I am using the RAND() function. I am multiplying by 20 to get a larger number since RAND returns numbers between 0 and 1.

The problem is that RAND generates only 1 random number and copies that down each row. But I want a different randome number on each row.

I am using the AdventureWorks2012 database on SQL Server Express on my laptop.

DECLARE @Drago TABLE (
ProductID int IDENTITY (1,1),
Price money NOT NULL,
Qty int NULL
)

INSERT INTO @Drago (
Price,
Qty
)

SELECT ListPrice, RAND()*20
FROM Production.Product

SELECT *
FROM @Drago

Lamprey
Master Smack Fu Yak Hacker

4614 Posts

Posted - 2013-05-01 : 17:43:10

Don't use the RAND function. Try using the NEWID function.

http://stackoverflow.com/questions/2247554/random-number-on-sql-without-using-newid

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-05-02 : 04:36:10

http://beyondrelational.com/modules/2/blogs/70/posts/19431/rand-function-reset-values-for-each-group.aspx

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