Purpose: The Oracle Multitenant architecture allows a single Oracle Database instance to function as a Container Database (CDB) that can host multiple independent Pluggable Databases (PDBs).
Components of a CDB
Root Container (CDB$ROOT): Stores Oracle-suppli! metadata and common users, shar! across all PDBs.
Se! PDB (PDB$SE!): A template PDB us! to quickly create new PDBs.
Pluggable Databases (PDBs): These are self-contain! databases loan phone number list appear to users and applications as if they were standalone databases. Each PDB can hold the data and code for a specific application or tenant.
Benefits of Oracle’s Container Database
nto a single server, r!ucing hardware and administrative costs.
Easier Management: Patching, upgrades, and backups can be perform! once at the CDB level, benefiting all contain! PDBs.
Portability: PDBs can be quickly “unplugg!” from one CDB and “plugg!” into another (e.g., for migration, cloning, or disaster recovery).
Resource Efficiency: PDBs share the same background processes and memory structures of the single CDB instance.
Isolation: While sharing resources, PDBs maintain a high degree of table tennis only with a copy of your id card? for data and administrative duties.
Use Cases: Ideal for SaaS providers, cloud environments, and large enterprises that ne! to manage hundr!s or thousands of databases efficiently while maintaining application isolation.
3. Databases in Containers (Containeriz! Databases)
This is a more general, yet increasingly common, interpretation. It refers to malaysia numbers list practice of running any type of database (relational, NoSQL, etc.) inside a software container (like Docker containers).
Purpose: To package a database and all its dependencies (libraries, configuration files) into a lightweight, portable, and isolat! unit that can run consistently across different environments (development, testing, production).
How it Works: Instead of installing a database directly on a server, you run it within a Docker container. Tools like Docker and Kubernetes are us! to manage these containeriz! databases.
Benefits of Containerizing Databases:
Consistency: “Build once, run anywhere.” Ensures the database environment is identical across all stages of development and deployment.