----定義
declare test_cursor1 cursor for
select * from testgo
----打開
open test_cursor1
----執行
fetch next from test_cursor1
----關閉
close test_cursor1
----釋放遊標
deallocate test_cursor1
1.http://www.cnblogs.com/moss_tan_jun/archive/2011/11/26/2263988.html
2.http://www.cnblogs.com/quietwalk/archive/2011/10/17/2215428.html
----遊標的用法執行順序
1、定義遊標、打開遊標
declare test1_cursor cursor for
select className from class
open test1_cursor
----執行遊標(獲取數據並打印出來)
declare @class_name varchar(30)
declare @Allclassname varchar(max)
fetch test1_cursor into @class_name //把當前行className的數據付給變量@class_name
set @Allclassname=@class_name
while(@@fetch_status=0)
begin
fetch test1_cursor into @class_name
set @Allclassname=@Allclassname+','+@class_name
end
--print @Allclassname ------打印
select @Allclassname as allname
close test1_cursor
deallocate test1_cursor
---@@fetch_status的狀態含義