幾種backup小結,backup小結[oracle@localhost ~]$ cat /etc/redhat-releaseRed Hat Enterprise Linux Server release 5.5 (Tikanga)SQL> select * from v$version where rownum=1;BANNER--------------------------------------------------------------------------------
Wallflower paper測試資料集(原Test Images for Wallflower Paper),wallflowerpaper原文:This page contains the test images that we used for our Wallflower paper.* We tested several different background maintenance algorithms on seven different image sequences.
/tmp/.oracle,/var/tmp/.oracle如果刪除了,該怎麼辦?,tmp.oracle在官方文檔有如下的描述:3 Installing Oracle Grid Infrastructure and Oracle Real Application ClustersCaution:After installation is complete, do not remove manually or run cron jobs that remove /tmp/.oracle or
eXtremeDB HA synchronization procedure,extremedbHere is the description of synchronization procedure:1. Masterand replica databases have a ha_sequencer - 64bit integer which is initializedby zero at startup.2.
SQLServer的Lead和Lag實現,sqlserverleadlag在這裡不談2012版本,因為那版本好像有了lead,lag函數,不過沒試過。這裡主要講怎麼自己實現1、有表A如下資料insert into A(id,name) values(1,'張三')insert into A(id,name) values(2,'李四')insert into A(id,name) values(3,'王五')2、SQL如下SELECT *