ALTER PROCEDURE [dbo].[usp_RandomNumber] ( , --随机数位数 --随机笔数 ) AS BEGIN DECLARE @T AS TABLE([Random Number] VARCHAR(MAX)) , WHILE @R <= @Rows BEGIN DECLARE @RN varchar(MAX) = '' WHILE @L <= @Len --随机产生每个随数的位数 BEGIN ,)) END --如果产生相同的随机数,将不会存储 IF NOT E…
-创建视图 create view myview as select re=rand() --自定义函数:取得指定范围的随机数 create function mydata( @a int, @b int) returns decimal(38,0) as begin declare @r decimal(38,0) select @r=cast(re*(@b-@a)+@a as decimal(38,0)) from myview return(@r) end go --调用(可以随意指定你要…
Sql语句,循环遍历生成区间5~20的随机数语句如下: are @i int DECLARE @Result INT DECLARE @Upper INT DECLARE @Lower INT ) ) SELECT @Result begin insert into master.dbo.test_1(num) ) ) end…
use School --指定数据库 declare @min_id int --声明整数变量@x set @min_id=(select MIN(Id) from Students) --给变量@x赋初值为当前最小的Id值 while @min_id>0 begin update Students set Age=ROUND(RAND()*100,0) where Id=@min_id --round()四舍五入把原值转化为指定小数位数 --rand()取得是随机数 默认范围为(0·1) ra…
代码: ) DECLARE user_extension_cursor CURSOR FOR SELECT UserCode FROM Users OPEN user_extension_cursor; FETCH NEXT FROM user_extension_cursor INTO @user_id BEGIN UPDATE Users ) as int) WHERE UserCode = @user_id FETCH NEXT FROM user_extension_cursor INT…
SELECT REPLACE(NEWID(),'-','') select replicate(char(cast(rand()*1000 as int)%26+97) +char(cast(rand()*1000 as int)%26+97) +char(cast(rand()*1000 as int)%26+97) +char(cast(rand()*1000 as int)%26+97) +char(cast(rand()*1000 as int)%26+97),(cast(rand()*…