游标使用 

 1 declare testcur cursor scroll for
 2 select top 10 newid() from [master].[sys].[databases] order by newid()
 3 open testcur
 4 
 5 print ('总行数'+CHAR(13)+CHAR(10)+convert(varchar(50),@@cursor_rows))
 6 
 7 declare @gid uniqueidentifier
 8 
 9 FETCH LAST FROM  testcur into @gid
10 print ('最后行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))
11 
12 FETCH PRIOR FROM  testcur into @gid
13 print ('上一行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))
14 
15 FETCH ABSOLUTE 3 FROM  testcur into @gid
16 print ('第三行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))
17 
18 FETCH RELATIVE 3 FROM  testcur into @gid
19 print ('隔三行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))
20 
21 FETCH FIRST FROM  testcur into @gid
22 print ('第一行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))
23 
24 while @@fetch_status=0
25 begin
26     FETCH NEXT FROM  testcur into @gid
27     print ('下一行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))
28 end
29 
30 close testcur
31 deallocate testcur

 

posted @ 2016-08-08 15:23  自然去留  阅读(162)  评论(0)    收藏  举报