存储过程--求sc中平均成绩

从sc表中求出学好为s1的同学的平均成绩，如果此平均成绩大于60则输出“pass”？

if (select avg(score) from sc where sno = 's1' group by sno)>60
begin
print 'pass'
end


//
笔记：
//创建此数据库
create database stuscore
go
use stuscore
go
//创建数据表
create table sc(
stuid nvarchar(10) not null primary key,
stuname nvarchar(10) not null,
score nvarchar(3) not null
)
//数据score计划错误，插入另一个成绩并且修改此属性
alter table sc
add scoremath nvarchar(3) not null

use stuscore
go
//修改属性
exec sp_rename 'sc.score','scoreenglish'
go
//插入表中信息
insert into sc(stuid,stuname,scoreenglish,scoremath) values(2009013711,'张倩',38,48)
insert into sc(stuid,stuname,scoreenglish,scoremath) values(2009013712,'少则',38,75)
insert into sc(stuid,stuname,scoreenglish,scoremath) values(2009013715,'王易',73,62)

----------------------------------------------------------------
//表中信息‘少则’计划出错，修改之
use stuscore
go
select*from sc where stuname = '少则'
go
update sc set scoreenglish = '38' where scoreenglish = '48'*stuname = '少则'
go

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