Explore advanced database solutions, including high-performance Oracle Database, NoSQL, MySQL, and Autonomous Database options for robust data management.
xttplan.txt- containing the tablespace names, their current SCNs and their datafile numbers xttnewdatafiles.txt- containing the tablespace names, datafile numbers, the destination directory object name and the source filenames getfile.sql- The PL/SQL script(formatting ours) that will be used at ...
接下来,复制这些日志文件到物理备库,然后在物理备库上使用“ALTER DATABASE REGISTER LOGFILE”语句来注册这些归档日志,如下所示: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SQL>ALTERDATABASEREGISTERLOGFILE'/arch/thread1_dest/arch_1_10.arc';--也可以使用如下的SQL语句:ALTERDATABASEREGISTERORREPLACE...
1.3 新库创建dblink到旧库 create database link t_s_link connect to comp identified by compusing'fzcbdb1';selectcount(*)fromdba_tables@t_s_link; 2.实例查询 selectinstance_name,statusfromv$instance;selectinstance_name,statusfromv$instance@t_s_link; 3.数据量大小对比 dba_segments SQL>selectsum(...
Autonomous Database Quick Start Workshop The labs in this workshop walk you through all the steps to get started using the Oracle Autonomous Database Serverless (ADB-S). You will provision a new ADB instance, load data from the object store and troubleshoot data loads, query external data ...
a single instance database is good, but if you are running RAC or Data Guard, this isn’t really an issue as the database remains online for most of the patching anyway. Having a quick fallback is great, but once again if you are running RAC or Data Guard this isn’t a big deal...
1)Oracle instance (数据库实例,上半部分) 2)Database(数据库,下半部分) Oracle服务器=实例+数据库 实例=SGA(实例内存)+后台进程 内存=SGA+PGA SGA=Database Buffer Cache (数据库高速缓存区缓存)+Share Pool (共享池)+Redo Log Buffer(日志缓存区) ...
Oracle Database is a relational database management system developed by Oracle. Connect to on-premise Oracle Database to perform various actions such as create, update, get, and delete on rows in a table.This connector is available in the following products and regions:...
ORACLEinstancestarted. TotalSystemGlobalArea289406976bytes Fixed Size1248576bytes Variable Size117441216bytes Database Buffers163577856bytes Redo Buffers7139328bytes Database mounted. Database opened. SQL> SGA区是可读写的。所有登录到实例的用户都能读取SGA中的信息,而在oracle做执行操作时,服务进程会将修改的信息...
此表的名称类似于 <instance name>_<channel name>_last。 此表由 OBP 内部用于跟踪富历史数据库中记录的块高度。这张表格无法用于分析查询。 下面是一个屏幕截图,当富历史数据库连接到 SQL Developer 工具时,您可以参考以查看先前的表格: 含有列的富历史表格 摘要 企业不断寻找有效和高效的方法来利用区块链技术...