2.在Oracle9i之前 可以通过查询x$ktuxe获得最接近当前系统scn值 X$KTUXE-------------[K]ernel [T]ransaction [U]ndo Transa[x]tion [E]ntry (table) SQL> select max(ktuxescnw*power(2,32)+ktuxescnb) from x$ktuxe; MAX(KTUXESCNW*POWER(2,3
ORA-01194: file 1 needs more recovery to be consistent ORA-01110: data file 1: '/opt/oracle/oradata/conner/system01.dbf' ORA-01112: media recovery not started SQL> alter database open resetlogs; Database altered. 此时数据库可以正常打开 历史上的今天... >>2019-01-17文章: Oracle 比率:Re...
STANDBY_SQL > select current_scn from v$database; CURRENT_SCN --- 2791087 - 2791087- Take a note of this scn, as we need to recover from this scn 3. [Standby] Stop the managed standby apply process: STANDBY_SQL > alter database recover managed standby database cancel; Database alt...
SCN (System Change Number) is a primary mechanism to maintain data consistency in Oracle database. SCN is used primarily in the following areas, of course, this is not a complete list: Every redo record has an SCN version of the redo record in the redo header (and redo records can have...
简介Snapshot standby database是ORACLE 11g的新特性。允许Physical standby短时间的使用read write模式。 Snapshot standby是由Physical standby 全新转换而来,可以独立于primary 处理事务,同时能够不断地从
The source database logs of the task are obtained from the position after the start point. Figure 8 Capture Start Point The start point of incremental synchronization is the SCN of the source database. You can run the select current_scn from v$database; command to obtain the current SCN ...
And you’ll have your missing data back! If you’re not sure which rows are gone, you can find the deleted ones using minus(减去).This enables you to compare the current state of the table how it looked before the time of the disaster. The SQL find rows which were in the table an...
RMAN-06004: ORACLE error from recovery catalog database: RMAN-20011: target database incarnation is not current in recovery catalog RMAN> list incarnation; List of Database Incarnations DB Key Inc Key DB Name DB ID CUR Reset SCN Reset Time ...
For additional information about rolling back in-doubt distributed transactions, see Oracle8 Distributed Database Systems.Defining Transaction SavepointsTo define a savepoint in a transaction, use the SAVEPOINT command. The following statement creates the savepoint named ADD_EMP1 in the current transaction...
手动递增SCN号的几种方法:How to increase System Change Number by manual, 手动递增SCN号的几种方法 除去下面几种,还有一种方法直接修改实例的GlobalLamportSCN,在SGA中由kcsgscn变量存储,对于一个实例来说这是唯一的源SCN,所有其他的SCN均由这个so