|
所在平台: Udemy |
课程主页: https://www.udemy.com/course/oracle-dba-21c/
课程评论：没有评论
**课程名称：Oracle DBA 21c 数据库管理** **课程概述：** 本课程专注于 Oracle 21c 数据库管理。Oracle 21c 是 Oracle 最新的数据库软件，它是一个创新版本，意味着其支持生命周期相对较短。Oracle 21c 是首个仅支持可插拔数据库（CDB）架构的版本，无法创建非 CDB 数据库。 **实践内容：** * Oracle 数据库架构 * 在 Oracle VM 上安装 Oracle Linux 8 * 创建 CDB * 从 Seed 创建 PDB * 执行基本的 CDB 管理任务 * 管理公共用户和本地用户 * CDB 和 PDB 的备份与恢复 * 闪回和指定时间点恢复 (Point-in-time Recovery) **Oracle Database 21c 亮点：** Oracle Database 21c 是当前最受欢迎的数据库的最新创新版本。它可在 Oracle Cloud 和本地 Linux 环境（包括 Exadata）中使用。 **支持的升级路径：** 可直接从以下版本升级到 Oracle Database 21c： * Oracle Database 19c * Oracle Database 18c * Oracle Database 12c Release 2 (12.2) **21c 新特性：** * 区块链表 (Blockchain Tables) * 不可变表 (Immutable Tables) * Oracle 机器学习 (Oracle Machine Learning) * 原生 JSON 数据类型 (Native JSON Datatype) * SQL 宏 (SQL Macros) * 数据库内 JavaScript 执行 (In database JavaScript execution) * 比较执行计划/光标 (Compare explain plans / cursors) **关于创新版本和长期支持版本：** 需要注意的是，创新版本（如 Oracle Database 21c）的支持窗口比长期支持版本（如 Oracle Database 19c）要短。创新版本包含许多将在下一个长期支持版本中引入的增强和新功能，但**不提供扩展支持**。Oracle Database 21c 作为创新版本，仅提供 2 年的优先支持。而长期支持版本通常提供 5 年的优先支持，之后还有 3 年的扩展支持。 **作者观点（非课程内容，仅供参考）：** 作者个人建议非生产环境可以使用 Oracle Database 21c，但不建议将生产服务器升级到该创新版本。作者更倾向于使用 Oracle Database 19c，因为它有更长的支持周期（优先支持至 2024 年 4 月 30 日，之后还有扩展支持）。
Oracle DBA 21cThis course is about Oracle 21c DBA. Oracle 21c is the latest database software from Oracle and it's a innovation release which means it has shorter support life span. Oracle 21 c is the first release of oracle database with CDB only option. You can not create a non-CBD database in Oracle 21c. In this course we will be doing hands on practice sessions with the following:-Oracle ArchitectureInstallationOfOracleLinux8OnOracleVMPractice 1 Creating a CDBPractice 2 Creating PDBs from the SeedPractice 3 Performing Basic CDB Administration TasksPractice 4 Managing Common and Local UsersPractice 5 Backup and Recovery in CDB and PDBsPractice 6 Flashback and Point-in-time RecoveryOracle Database 21c is the latest innovation release of world's most popular database. Oracle Database 21c is now available on Oracle cloud and on-premises for linux including Exadata.You can directly upgrade to Oracle Database 21c from the following releases:- Oracle Database 19c- Oracle Database 18c- Oracle Database 12c Release 2 (12.2)Top New features in Oracle Database 21c:- Blockchain Tables- Immutable Tables- Oracle Machine Learning- Native JSON Datatype- SQL Macros- In database JavaScript execution- Compare explain plans / cursorsWe all should be aware that Innovation Releases have shorter support windows than Long Term Releases such as Oracle Database 19c.Oracle Database Innovation Releases include many enhancements and new capabilities which will be included in the next Long Term Release. Oracle Database Innovation Releases does not have extended support. As Oracle Database 21c is also an innovation release, which means it will only have 2 years of premium support.Oracle Database Long Term Releases usually have 5 years of Premier Support followed by 3 years of Extended Support. Personally I would not like to upgrade my production servers to an innovation release (Oracle Database 21c). I would like to upgrade (or stay with my Oracle Database Server with Oracle Database 19c which has Premier Support till April 30, 2024 and after that Extended Support will start for Oracle Database 19c.
