if exists(select *from sysobjects where id=object_id('proc_fetch_all')) --事先刪除儲存過程
drop procedure proc_fetch_all
gocreate procedure proc_fetch_all
as--當 set nocount 為 on 時，不返回計數（表示受 transact-sql 語句影響的行數）。當 set nocount 為 off 時，返回計數。
set nocount on
declare @name varchar(20)
begin
declare db_cursor cursor scroll for select sname from student --建立游標
open db_cursor --開啟游標
fetch first from db_cursor into @name
select @name as sname
while @@fetch_status=0 --游標讀取下一條資料是否成功
begin
fetch next from db_cursor into @name
select @name as sname
endclose db_cursor --關閉游標
deallocate db_cursor --刪除游標
endset nocount off
go exec proc_fetch_all --執行儲存過程
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