Hey Guys, I have a quick stored
procedure question for you. I created a procedure that returns a randomly
generated number.
I know there is a built in
Rand() function but I need to be able to
specify the range. Anyways, it€™s returning multiple numbers (1 for each row in
the tempTable)
But I just want one number returned.
I tried using MAX( ) but that€™s not a good way of doing it.
My question is, how do I return just
one record or number?
Thanks
Fellas,
Chris
ALTER PROCEDURE
dbo.spx_GetRandomNum
AS
DECLARE @Start_Num int
DECLARE @End_Num int
DECLARE @ReturnValue
int
DECLARE @RecNum
int
DECLARE @CurrentRec
int
DECLARE @MyCount
int
SET @Start_Num=1
SET
@End_Num=100
CREATE TABLE #tblTemp (CurrentRecNo
int IDENTITY(1,1), RandomNumber int null)
SET @MyCount = ( @End_Num -
@Start_Num ) + 1
SET @CurrentRec = 1
WHILE @CurrentRec <= @MyCount
BEGIN
SET @RecNum
= CAST((RAND() * @MyCount) AS int) + @Start_Num
INSERT INTO
#tblTemp (RandomNumber) VALUES (@RecNum)
SET
@CurrentRec = @CurrentRec + 1
END
SET
@ReturnValue = (SELECT RandomNumber FROM
#tblTemp)
I need to update an integer column in my table with a random number. Here's what I've done so far (with the table name and column names changed):
UPDATE dbo.MyTable SET Column1 = RAND() * 1000000
My question is, how come the values in my column all have the same value? I thought the RAND function gives out a random number? How can I update my table to generate random numbers?
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ID  Item           RandomNumber ------------------------------------------- 1   JEANS                   1234567 2   SHIRT                 72813550 3   HOOD                           Null 4   TROUSER             72191839 5   BLAZER                            0
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select id,item,RandomNumber=Case when RandomNumber=0 then (select floor(rand()*100000000-1)) when RandomNumber is null then (select floor(rand()*100000000-1)) else RandomNumber end from tblProducts
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