declare @ParentID int
declare @num int
set @num =0
--聲明一個游標(biāo)mycursor，select語句中參數(shù)的個數(shù)必須要和從游標(biāo)取出的變量名相同
declare mycursor cursor for
select ProID as ParentID from Bms_Province p

--打開游標(biāo)
open mycursor

--從游標(biāo)里取出數(shù)據(jù)賦值到我們剛才聲明的2個變量中
fetch next from mycursor into @ParentID

--判斷游標(biāo)的狀態(tài)
--0 fetch語句成功
---1 fetch語句失敗或此行不在結(jié)果集中
---2被提取的行不存在
while (@@fetch_status=0)
begin

--顯示出我們每次用游標(biāo)取出的值
print '游標(biāo)成功取出一條數(shù)據(jù)'

set @num =@num+1
print @num
insert into Bms_Areas
select
(case when T.CityID=0 then 0 else -99 end ) as ParentID,
(case when T.CityID=0 then '0'+CONVERT(VARCHAR(10),T.ProID)
else '00'+CONVERT(VARCHAR(10),T.CityID) end) as AreaCode,
T.ProName as AreaName,'' as Notes,
(case when T.CityID=0 then 1 else 2 end) as LevelNum,
0 as IsDefault,1 as IsValid,0 as IsDel
from (
select p.ProID,p.ProName,p.ProSort,0 as CityID,p.ProRemark from Bms_Province p where ProID=@ParentID
union select c.ProID,c.CityName,c.CitySort,c.CityID,'' as ProRemark from Bms_City c where ProID=@ParentID
) T order by CityID

UPDATE T SET ParentID =
(select top 1 AreaID from Bms_Areas where ParentID=0 order by AreaID desc)
from (select * from Bms_Areas where ParentID=-99 and AreaID>
(select top 1 AreaID from Bms_Areas where ParentID=0 order by AreaID desc)) T

--用游標(biāo)去取下一條記錄
fetch next from mycursor into @ParentID
end
--關(guān)閉游標(biāo)
close mycursor
--撤銷游標(biāo)
deallocate mycursor

（SQL游標(biāo)） 整合省市