摘要: 1.高可用行 (1)HA(high availability HA) (2)RAC(Oracle Real Application Cluster) (3) DG (DATA Guard) (4) Oracle Replication (5) RAID和镜像驱动器2.备份和恢复 (1)收... 阅读全文
posted @ 2015-06-25 21:57 修行从29开始 阅读(145) 评论(0) 推荐(0) 编辑
摘要: ntile:伪SQL: ntile(:exp) over()NTILEis an analytic function. It divides an ordered data set into a number of buckets indicated byexprand assigns the ap... 阅读全文
posted @ 2015-06-25 09:38 修行从29开始 阅读(562) 评论(0) 推荐(0) 编辑