关于在存储过程中使用游标操作数据库

----------------------使用游标操作数据库------------------------------------------
alter procedure doTable

as

DECLARE @A1 VARCHAR(200),@A2 VARCHAR(200),@A3 varchar(1000),@A4 varchar(200)

declare @i int

declare @j int

declare @length int

declare @questionId varchar(50)

declare @areaid varchar(50)

declare @creatuser varchar(50)

declare @content varchar(100)

declare @replyAccount varchar(50)

declare @replyMembeId varchar(50)

declare @postTime datetime

DECLARE test CURSOR  FOR SELECT 标题,id,内容,分类 FROM view1

OPEN test

fetch next from test into @a1,@a2,@a3 ,@a4

while @@fetch_status<>-1

begin

---设定第几条数据

set @j=0

--------去除左右空格

set @a3=rtrim(ltrim(@a3))

set @i=charindex('|||',@a3)

while @i>=1

begin

  ---第一条数据的话

if @j=0

begin

set @questionId=newid()

-------添加到问题列表中

set @content=left(@a3,@i-1)

  set @j=@j+1

  ---获得任意一个用户

select top 1 @creatuser=account from member order by newid()

---获得任意一个地区

select top  1 @areaid=id from memberarea order   by   newid()  

  insert into question (ID,F_CATALOGID,F_AREAID,TITLE,CONTENT,POSTUSER,createuser)

values (@questionId,@a2,@areaid,@a1,@content,@creatuser,@creatuser)

  

end

---如果不是第一条记录，那就是问题的回复

else

begin

  -------添加回复问题的表中  

---获得任意一个用户

select top 1 @replyAccount= account,@replyMembeId=id from member order by newid()

--一年内的随机时间

set @postTime=dateadd(day, -cast(ceiling(rand() *365) as int),convert(char(50),getdate(),20))

insert into QUESTIONREPLY (F_QUESTIONID,TITLE,CONTENT,REPLYUSER,CREATEDATE,replydate,createuser,posta,postb)

values (@questionId,@a1,left(@a3,@i-1),@replyAccount,@postTime,@postTime,@replyMembeId,cast(ceiling(rand() *2) as int)-1,cast(ceiling(rand() *2) as int)-1)

end

set @a3=substring(@a3,@i+3,len(@a3)-@i)

set @i=charindex('|||',@a3)

 end

 if @a3<>'\'

begin

if @j=0

begin

-------只有一条，添加到问题列表中

---获得任意一个用户

select top 1 @creatuser=account from member order by newid()

---获得任意一个地区

select top  1 @areaid=id from memberarea order   by   newid() 

set @questionId=newid()

insert into question (id,F_CATALOGID,F_AREAID,TITLE,CONTENT,POSTUSER,createuser)

values (@questionId,@a2,@areaid,@a1,@a3,@creatuser,@creatuser)

end

else

begin

  -------添加回复问题的表中

---获得任意一个用户

select top 1 @replyAccount= account,@replyMembeId=id from member order by newid()

--一年内的随机时间

set @postTime=dateadd(day, -cast(ceiling(rand() *365) as int),convert(char(50),getdate(),20))

insert into QUESTIONREPLY (F_QUESTIONID,TITLE,CONTENT,REPLYUSER,CREATEDATE,replydate,createuser,posta,postb)

values (@questionId,@a1,@a3,@replyAccount,@postTime,@postTime,@replyMembeId,cast(ceiling(rand() *2) as int)-1,cast(ceiling(rand() *2) as int)-1)

end

end

fetch next from test into @a1,@a2,@a3 ,@a4

end

close test

deallocate test

execute doTable

select 内容 from view1

select count(*) from question

select count(*) from questionreply

delete from question

delete from questionreply