1
我需要创建一些随机数据,它是所有顺顺当当,直到我notiched我兰德职能的结果带回0,是有变化的100 * RAND()不包括的一种方式0和3 * RAND()不包括0或者,我需要的是1至100(包括100)和另一个之间,以随机化编号1和2。RAND和两人之间的数字
DECLARE @OrderNumber varchar (30)
DECLARE @OrderDate int
DECLARE @OrderLineNumber varchar(50)
DECLARE @CustomerSkey int
DECLARE @ProductSkey int
DECLARE @OrderMethodSkey int
SET @OrderNumber = 1
SET @OrderDate = 0
SET @OrderLineNumber = 1
SET @CustomerSkey = 1
SET @ProductSkey = 1
SET @OrderMethodSkey = 1
WHILE @OrderNumber <= 100
WHILE @OrderDate <= 100
WHILE @OrderLineNumber <= 100
WHILE @CustomerSkey <= 100
WHILE @ProductSkey <= 100
WHILE @OrderMethodSkey <= 100
BEGIN
INSERT INTO Orders
(OrderNumber
, OrderDate
, OrderLineNumber
, CustomerSkey
, ProductSkey
, OrderMethodSkey)
SELECT
'ORD' + Right ('000000' + CAST (@OrderNumber AS varchar (30)), 6)
,DATEADD (day, CAST (RAND() * 1500 as int), '2008-1-1')
,(Right ('0' + CAST (@OrderLineNumber AS varchar (30)), 6))
,100*RAND()
,100*RAND()
,2*RAND()
SET @OrderNumber = @OrderNumber + 1
SET @OrderDate = @OrderDate + 1
SET @OrderLineNumber = @OrderLineNumber + 1
SET @CustomerSkey = @CustomerSkey + 1
SET @ProductSkey = @ProductSkey + 1
SET @OrderMethodSkey = @OrderMethodSkey + 1
END
非常感谢你,我不相信这很容易。 – wafw1971
@ wafw1971这是“((High-Low)* Rand)+ Low”的简化,不用说,它是唯一正确的方法。 +1 – Jodrell
只需要快速跟进,我该如何Randomise时间,我需要在24小时内随时显示时间? – wafw1971