sql(SqlServer)编程基本语法

--简单赋值
declare @a int
set @a=5
print @a

--使用select语句赋值
declare @user1 nvarchar(50)
select @user1='张三'
print @user1
declare @user2 nvarchar(50)
select @user2 = Name from ST_User where ID=1
print @user2

 

-while循环计算1到100的和
declare @a int
declare @sum int
set @a=1
set @sum=0
while @a<=100
begin
set @sum+=@a
set @a+=1
end
print @sum