SQL 存储过程使用

nongzihong 
use master;    --切换到master数据库
go

create database stuDB
go

use stuDB    --选择当前数据库
go

CREATE TABLE StuInfo --创建学生信息表
(
    StuNo varchar(12) primary key,
    StuName varchar(20) not null ,
    StuAge int check(StuAge>=0 and StuAge<=120),
    StuSex char(2) check(StuSex=\'男\' or StuSex=\'女\') default(\'男\'),
    StuTel varchar(15),
    StuAddress varchar(50) default (\'地址不详\'),
    StuEmail varchar(50),
    birthday date,
    classname varchar(12)
)
go

CREATE TABLE Exam --创建学生成绩表
(
    ExamNo int primary key identity(1,1),
    StuNo varchar(12) foreign key references StuInfo(StuNo),
    Written decimal(10,2) check(Written>=0 and Written<=100),
    Lab decimal(10,2) check(Lab>=0 and Lab<=100)
)
go

 

 



--插入数据
insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135809010281\',\'周文学\',\'90-03-17\',\'2222273\',\'湖南衡阳\',\'Y2T116\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135507150062\',\'陈辉煌\',\'82-10-10\',\'2222274\',\'江西全南县\',\'Y2T48\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135508080033\',\'曾华军\',\'86-08-22\',\'2222275\',\'广东珠海\',\'Y2T49\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135512190343\',\'罗燕\',\'83-11-07\',\'22222746\',\'云南省潞西市\',\'Y2T65\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135508150034\',\'黄志伟\',\'87-11-13\',\'22222746\',\'江西会昌县\',\'Y2T50\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135508150045\',\'涂乾文\',\'86-07-22\',\'2228852\',\'广东珠海\',\'Y2T50\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135508150156\',\'唐宁\',\'81-07-01\',\'22222746\',\'广东珠海\',\'Y2T50\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135508260037\',\'贝然\',\'85-06-13\',\'22222746\',\'广东珠海\',\'Y2T60\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135508080198\',\'白生全\',\'86-06-03\',\'8828888\',\'重庆\',\'Y2T49\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135409250289\',\'沈永强\',\'81-06-23\',\'22222746\',\'江苏南通市\',\'Y2T50\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'217507100106\',\'张键\',\'85-07-18\',\'8557378\',\'广东江门\',\'Y2T50\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135509060163\',\'吴家彬\',\'82-09-22\',\'8324282\',\'珠海市斗门区\',\'Y2T52\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135509120044\',\'邹城廷\',\'85-10-15\',\'8218358\',\'广东珠海\',\'Y2T53\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135407060145\',\'娄智欣\',\'85-09-21\',\'8545256\',\'江西峡江\',\'Y2T42\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135503040102\',\'陈迪华\',\'00-01-01\',\'5612698\',\'广东珠海\',\'Y2T42\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135503210135\',\'陈福清\',\'80-11-25\',\'22222746\',\'江西于都县\',\'Y2T42\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135512280012\',\'陶正武\',\'83-06-19\',\'22222746\',\'湖南益阳市\',\'Y2T42\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135406070146\',\'杨振杰\',\'75-08-10\',\'22222746\',\'珠海\',\'Y2A21\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135504180237\',\'鲁力\',\'82-03-23\',\'22222746\',\'广东珠海\',\'Y2T44\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135505130263\',\'贺际勇\',\'80-11-06\',\'2628682\',\'湖南常德市\',\'Y2T44\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'514512260014\',\'刘峰\',\'82-02-06\',\'8385613\',\'湖南衡阳市\',\'Y2T44\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135505310242\',\'陈学斌\',\'82-02-03\',\'8358801\',\'广东珠海\',\'Y2T45\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135505310012\',\'郑银河\',\'81-08-26\',\'22222746\',\'湖南隆回县\',\'Y2T47\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135507150142\',\'陈卓\',\'86-08-30\',\'2210387\',\'江西省于都县\',\'Y2T47\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135507150193\',\'贾海波\',\'85-04-10\',\'22222747\',\'湖南蓝山县\',\'Y2T47\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135509120063\',\'钟文康\',\'84-05-15\',\'22222749\',\'广东珠海市\',\'S2T53\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135509120073\',\'朱婉婷\',\'83-08-11\',\'22222743\',\'广东珠海\',\'Y2T53\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135510110082\',\'易虎\',\'84-02-28\',\'22222744\',\'四川安岳县\',\'Y2T56\');




insert into stuinfo (stuno,stuName,birthday,stutel,stuAddress,classname)
values(\'135510110132\',\'陈挺\',\'84-05-19\',\'22222745\',\'珠海香洲\',\'S2T56\');





--插入成绩表
insert into Exam values(\'135510110132\',95,86);
insert into Exam values(\'135510110082\',55,56);
insert into Exam values(\'135509120073\',65,86);
insert into Exam values(\'135509120063\',60,60);
insert into Exam values(\'135507150193\',89,null);
insert into Exam values(\'135507150142\',91,60);
insert into Exam values(\'514512260014\',60,76);
insert into Exam values(\'135505130263\',null,null);
insert into Exam values(\'135504180237\',null,86);
insert into Exam values(\'135406070146\',54,46);
insert into Exam values(\'135512280012\',46,76);
insert into Exam values(\'135503210135\',32,86);
insert into Exam values(\'135503040102\',86,36);


--查询数据
select * from stuinfo
select * from Exam




 




--创建存储过程
create proc proc_stuInfo
as 
   select * from StuInfo
go

--调用存储过程
exec proc_stuInfo
go

--创建存储过程
create proc Proc_passStu
as
 select stuname,stuage,stusex,stuADDress,written,Lab
from  StuInfo s ,Exam e where s.StuNo=e.StuNo
go

--调用存储过程
exec Proc_passStu
go
 select stuname,stuage,stusex,stuADDress,written,Lab
from  StuInfo s ,Exam e where s.StuNo=e.StuNo


--创建带输入参数的存储过程
create proc proc_passStu1
@written int,
@Lab int
as
 select stuname,stuage,stusex,stuADDress,written,Lab
from  StuInfo s ,Exam e where s.StuNo=e.StuNo
and written>=@written and Lab>=@Lab
go

--调用带参存储过程
exec proc_passStu1 60,60
go

--创建带输入参数并赋默认值的存储过程
create proc proc_passStu2
@written int=60,
@Lab int=60
as
 select stuname,stuage,stusex,stuADDress,written,Lab
from  StuInfo s ,Exam e where s.StuNo=e.StuNo
and written>=@written and Lab>=@Lab
go


--调用存储过程
exec proc_passStu2
exec proc_passStu2 70,60

--笔试及格线为70，机试默认60
exec proc_passStu2 70

--笔试及格线默认60，机试及格线为70
exec proc_passStu2 default,70
exec proc_passStu2 @lab=70
go


--创建带输出参数的存储过程
create proc proc_passStu3
@passnum int output
as
   select @passNum=count(*) from Exam
    where Written>=60 and Lab>=60
go


declare @num int
exec proc_passStu3 @num output
print \'本次及格人数：\'+convert(varchar(5),@num)



--创建带输入参数并赋默认值及输出参数的存储过程
--没有默认值的参数定义在前面比较好
create proc proc_passStu4
@failnum int output,
@written int=60,
@Lab int=60
as
    declare @writtenavg decimal(5,2),@labavg decimal(5,2)
    select @written=AVG(written) from Exam where written is not null
    select @lab=AVG(Lab) from Exam where Lab is not null
    print \'笔试平均分\'+ convert(varchar(2),@written)
    print \'机试平均分\'+ convert(varchar(2),@lab)
    
    print \'本班考成绩：\'+
    case
        when @writtenavg>=70 and @labavg>=70 then \'优秀\'
        when @writtenavg>=60 and @labavg>=60 then \'一般\'
        else \'较差\'
    
    end
    
    print \'-------------------------------------------------\'
    print \'           参加本次考试没有通过的学员\'
    print \'-------------------------------------------------\'
    
        select s.StuName,e.StuNo,written,lab
        from Exam e,StuInfo s where e.StuNo=s.StuNo
        and (written<@written or lab <@Lab)

    select @failnum =count(*)from Exam
    where written<@written or lab <@Lab
    
go
declare @failnum int
exec  proc_passStu4 @failnum output 
print \'本次不及格的人数：\'+convert(varchar(5),@failnum)
go



--注意条件要加小括号
select StuName,Written,Lab 
from StuInfo s,Exam e
where s.StuNo = e.StuNo 
and (Written<60 or Lab<60)

--使用join就不用
select StuName,Written,Lab 
from StuInfo s join Exam e
on s.StuNo = e.StuNo
where Written<60 or Lab<60








            

            
        

	    
	    
    


 
                    
            
                

                  
 
        

	 
        

            

                                
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