configured in Oracle Service Bus. Each user works in a sandbox session until the user is ready to check in the working configuration to the core configuration of the bus. The change center provides multiple levels of undo, and visibility into conflicts, as multiple users work on the ...
Oracle recommends that the publisher always specify a tablespace that he or she owns when creating a change table. To create a tablespace, the publisher will need the following privileges:
SQL>create undo tablespace undo datafile '/oradata/oracle/oradata/ORA10GR2/undo1.dbf' size 1024M autoextend on; Tablespace created. SQL>shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> exit # vi oradata/oracle/102/dbs/initORA10GR2.ora "oradata/oracle...
--//也许oracle在视图字段命名上不科学,应该将OFFLINE_CHANGE#, ONLINE_CHANGE#命名为TABLESPACE_OFFLINE_CHANGE#,TABLESPACE_ONLINE_CHANGE#更加科学一些.
the database writes a new SCN to the undo data segment assigned to the transaction. The log writer process then writes the commit record of the transaction immediately to the online redo log. The commit record has the unique SCN of the transaction. Oracle Database also uses SCNs as part ...
support multiple tablespace/page/row foramts helps with maintaining backward compatibility easier to introduce new features/capabilities ie page/row formats that give better compression Serialized Dictionary Information (SDI) Tablespaces self describing ...
TABLESPACE_NAME STATUS SYSTEM ONLINE UNDOTBS1 ONLINE SYSAUX ONLINE TEMP ONLINE USERS READ ONLY EXAMPLE ONLINE SQL> select file#,LAST_CHANGE# from v$datafile; FILE# LAST_CHANGE# 1 2 3 4 592291 5 可以看到除了users表空间的结束scn不为空,其他数据文件的结束scn为空。
e、undo log tablespace 3.2.3、后台线程 思考🤔问题:内存的缓冲池写满了怎么办?(Redis 设置的内存满了怎么办?) 思考🤔问题:思考一个问题: 当需要更新一个数据页时,如果数据页在 Buffer Pool 中存在,那么就直接更新好了。 否则的话就需要从磁盘加载到内存,再对内存的数据页进行操作。也就是说,如果没有命...
Oracle Database - Enterprise Edition - Version 11.2.0.1 to 18.3.0.0.0 [Release 11.2 to 18]: Memory Corruption Errors (e.g. ORA-600 [17182] / [17147] / [17114] etc.)
create tablespace cdc_tbsp datafile '/u01/app/oracle/oradata/orcl/cdc_tbsp01.dbf' size 200m; create user cdc_publisher identified by cdc_publisher default tablespace cdc_tbsp temporary tablespace temp; CREATE USER cdc_publisher IDENTIFIED BY cdc_publisher DEFAULT TABLESPACE cdc_tbsp ...