摘要: select logtime, count(*), round(sum(blocks * block_size) / 1024 / 1024) mbsize from (select trunc(first_time, 'hh') as logtime, a.BLOCKS, a.BLOCK_SIZE from v$archive... 阅读全文
posted @ 2019-01-07 13:39 dayu.liu 阅读(404) 评论(0) 推荐(0) 编辑