游标使用

declare testcur cursor scroll for
select top 10 newid() from [master].[sys].[databases] order by newid()
open testcur

print ('总行数'+CHAR(13)+CHAR(10)+convert(varchar(50),@@cursor_rows))

declare @gid uniqueidentifier

FETCH LAST FROM  testcur into @gid
print ('最后行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))

FETCH PRIOR FROM  testcur into @gid
print ('上一行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))

FETCH ABSOLUTE 3 FROM  testcur into @gid
print ('第三行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))

FETCH RELATIVE 3 FROM  testcur into @gid
print ('隔三行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))

FETCH FIRST FROM  testcur into @gid
print ('第一行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))

while @@fetch_status=0
begin
    FETCH NEXT FROM  testcur into @gid
    print ('下一行'+CHAR(13)+CHAR(10)+convert(varchar(50),@gid))
end

close testcur
deallocate testcur