A multitenant container database is a great invention because it can hold many pluggable databases. An existing database can simply be adopted with no application changes required.
Oracle Database Release 18c includes the fourth major release of Oracle Multitenant and features number of enhancements. Oracle Multitenant fully complements other options, including Oracle Real Application Clusters and Oracle Active Data Guard.
Learn more about these new features in the Oracle Multitenant: New Features white paper, but here is a summary:
Oracle University offers courses about Oracle Database 18c, and multitenant-architecture topics are included. Consider signing up for one or more of the following courses:
This course provides an overview of the Oracle Database 18c new features and enhancements related to multitenant architecture, security, RMAN, general database areas, performance, data warehousing and sharding.
This course provides you with a firm foundation in administration of an Oracle database. In this course, you will gain a conceptual understanding of the database and its multitenant architecture and learn how to manage an Oracle database in an effective and efficient manner.
You will learn about new software features and improvements found in Oracle Clusterware, Oracle ASM, Real Application Clusters, and Oracle Data Guard.
During this four day course you will gain a conceptual understanding of the multitenant architecture and learn how to manage an Oracle multitenant container database (CDB) and its different types of pluggable databases (PDB) in an effective and efficient manner.
Another great way to learn about Oracle Database 18c and multitenant architecture is to sign up for the Oracle Database New Features Learning Subscription, which gives you one full year of continuous database training for a reasonable price.
This is a great way to learn how to leverage the enhancements in multitenant. Check it out!