简单使用游标插入数据

--创建数据库

create proc InsertStudent

as

--定义所需要的变量

declare @SchoolID int

declare @ClassID int

declare @StudentID int

declare @IDNumber int --条件判断时需要

begin

--创建游标

declare FeeInsertStudent cursor for

select stuID,SchID,ClasID from T_School

--打开游标

open FeeInsertStudent

--从游标里取出数据给 变量 赋值

fetch next from FeeInsertStudent into @SchoolID,@ClassID,@StudentID

--判断有标的状态

while @@FETCH_STATUS=0

begin

--为变量赋值

set @IDNumber=(select count(*) from T_LeaveSchool where StudentID=@StudentID and SchoolID=@SchoolID and ClassId=@ClassID)

if(@IDNumber=0) --判断

begin

insert into T_LeaveSchool(StudentID,ClassID,SchoolID)

values( @StudentID,@ClassID,@StudentID)

end

fetch next from FeeInsertStudent into @SchoolID,@ClassID,@StudentID

end

close FeeInsertStudent --关闭游标

deallocate FeeInsertStudent --撤销游标

end