1 /**************************** 2 说明：游标使用 3 时间：07/07/15 4 ******************************/ 5 use student_15 6 go 7 declare student_cur cursor 8 9 for select * from student 10 go 11 12 declare @sid int 13 declare @sname varchar(20) 14 declare @ssex char(1) 15 declare @sage int 16 declare @classid int 17 18 open student_cur 19 fetch next from student_cur into @sid,@sname,@ssex,@sage,@classid 20 while @@fetch_status=0 21 begin 22 print @sname 23 fetch next from student_cur into @sid,@sname,@ssex,@sage,@classid 24 end 25 close student_cur 26 deallocate student_cur 27 /******************************* 28 29 说明：游标的操作(update) 30 时间：07/07/15 31 *******************************/ 32 use student_15 33 go 34 select * from student 35 go 36 37 declare student_cur cursor 38 scroll --游标的移动位置 39 for select * from student 40 for update of sname,sage 41 go 42 declare @sid int 43 declare @sname varchar(20) 44 declare @ssex char(1) 45 declare @sage int 46 declare @classid int 47 48 open student_cur 49 fetch first from student_cur into @sid,@sname,@ssex,@sage,@classid 50 /*更新游标数据*/ 51 update student set sage=19,sname='11' where current of student_cur 52 while @@fetch_status =0 begin 53 54 fetch next from student_cur into @sid,@sname,@ssex,@sage,@classid 55 56 if @sid=1003 begin 57 update student set sage=19,sname='11' where current of student_cur 58 end 59 60 end 61 close student_cur 62 deallocate student_cur 63 64 /*************游标操作删除***************/ 65 use student_15 66 go 67 68 declare student_cur cursor 69 scroll 70 for select * from student 71 for update of sid 72 go 73 74 declare @sid int 75 declare @sname varchar(20) 76 declare @ssex char(1) 77 declare @sage int 78 declare @classid int 79 80 open student_cur 81 82 fetch first from student_cur into @sid,@sname,@ssex,@sage,@classid 83 84 while @@fetch_status=0 85 86 begin 87 88 fetch next from student_cur into @sid,@sname,@ssex,@sage,@classid 89 90 if @sid=1003 91 92 begin 93 94 delete student where current of student_cur 95 96 end 97 end 98 close student_cur 99 deallocate student_cur