工作中会经常遇到被询问Oracle某一个新特性，是在哪个版本开始引入，通常都去查官方文档New Features部分章节，下面列出从12.1.0.1 到 19c的对应在线官方文档的链接，方便快速检索：
12c/19c新特性官方文档快速参考：
- Oracle Database 12c Release 1 (12.1.0.1) New Features
https://docs.oracle.com/database/121/NEWFT/chapter12101.htm#NEWFT002 -
Oracle Database 12c Release 1 (12.1.0.2) New Features
https://docs.oracle.com/database/121/NEWFT/chapter12102.htm#NEWFT003 -
Oracle Database 12c Release 2 (12.2) New Features
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/newft/new-features.html#GUID-3A8E2A84-4ACB-4354-9DB1-53EE6F608F6D -
Oracle Database Release 18c New Features
https://docs.oracle.com/en/database/oracle/oracle-database/18/newft/new-features.html#GUID-04A4834D-848F-44D5-8C34-36237D40F194 -
Oracle Database Release 19c New Features
https://docs.oracle.com/en/database/oracle/oracle-database/19/newft/new-features.html
什么？你说为什么不把11g系列的也都列出来？
11g都退出历史舞台了，还叫新特性？还是把精力多放在关注19c系列相关吧^_^
