最近虛擬機器下的Oracle 10g RAC搬家,搬家完畢之後,Oracle 叢集resource之VIP無法正常啟動,收到了CRS-0233: Resource or relatives are currently involved with another operation 錯誤提示。為為啥呢,原來啊,搬家了地址發生變化了,你得使用你家裡的新地址阿....1、環境描述 Oracle 10g RAC + Suse 10
Oracle Data Guard邏輯備庫是利用主庫的一個備份首先建立一個物理備庫,然後再將其轉換為邏輯備庫。這之後主庫將日誌傳遞到備庫,備庫利用logminer從主庫的日誌中解析出主庫所執行過的SQL,在備庫上重新執行一遍,從而保證與主庫的資料在邏輯上保持一致。與物理備庫相對應的是,物理備庫使用的是redo apply,邏輯備庫使用的是sql
TO_DATE格式 Day: dd number 12 dy abbreviated fri day spelled out friday ddspth spelled out, ordinal twelfth Month: mm number 03 mon abbreviated mar month spelled out march Year: yy two digits 98 yyyy four digits 1998 24小時格式下時間範圍為: 0:00:00 - 23:59:59...
---oracle誤刪資料得恢複辦法,視復原段大小,只能恢複三個小時得資料.---恢複到某一時間點(資料操作時間點)---只適用於delete,update,insert等操作,可以恢複,對於truncate,drop等ddl操作無法恢複!---drop或trancate表後只能用資料庫恢複實現 create table crm_hasten_fee_detail_bak2 as select * from crm_hasten_fee_detail where 1=0;insert into
The processes in an Oracle system can be categorized into two major groups:■ User processes run the application or Oracle tool code.■ Oracle processes run the Oracle database server code. They include server processes and background
比較官方的說法FullA backup of a datafile that includes every allocated block in the file being backed up. A full backup of a datafile can be an image copy, in which case every data block is backed up. It can also be stored in a backup set, in which case
ROLLUP,是GROUP BY子句的一種擴充,可以為每個分組返回小計記錄以及為所有分組返回總計記錄。CUBE,也是GROUP BY子句的一種擴充,可以返回每一個列組合的小計記錄,同時在末尾加上總計記錄。 在文章的最後附上了相關表和記錄建立的指令碼。 1、向ROLLUP傳遞一列SQL> select division_id,sum(salary) 2 from employees2 3 group by rollup(division_id) 4 order by