sql 游标使用笔记

declare @pdtid nvarchar(50)
declare @ptype nvarchar(50)
declare my_cursor CURSOR for
select pdtid,ptype from dbo.Product
open my_cursor
fetch next from my_cursor
into @pdtid,@ptype
while @@fetch_status=0
begin
fetch next from my_cursor
end
close my_cursor