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
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