<<–2/”>a href=”https://exam.pscnotes.com/5653-2/”>p>key differences between Oracle 11g and 12c, along with their pros, cons, similarities, and some FAQs.
Introduction
Oracle Database, often simply referred to as Oracle, is a multi-model database management system produced and marketed by Oracle Corporation. It is a widely used relational database management system (RDBMS) that supports both SQL (Structured Query Language) for interacting with data and PL/SQL (Procedural Language/SQL) for creating more complex database applications. Oracle 11g and 12c are two versions of this database system, with 12c being the successor to 11g.
Key Differences between Oracle 11g and 12c
| Feature | Oracle 11g | Oracle 12c |
|---|---|---|
| Architecture | Traditional architecture | Multitenant architecture (CDB and PDBs) |
| Pluggable Databases | Not available | Introduced, allowing for easy cloning and management of multiple databases within a Container Database (CDB) |
| In-Memory Column Store | Not available | Introduced, significantly improving the performance of analytical queries |
| JSON Support | Limited support | Native JSON datatype and functions for efficient storage and retrieval of JSON data |
| Cloud Integration | Limited | Enhanced integration with Oracle Cloud, including features like automatic backup and recovery to the cloud |
| Security | Redaction, Database Vault, Transparent Data Encryption (TDE) | Enhanced security features like Data Redaction, Privilege Analysis, Unified Auditing, and Default Tablespace Encryption |
| Performance | Automatic Storage Management (ASM), Real Application Clusters (RAC), Data Guard | Improved performance with Adaptive Query Optimization, Smart Flash Cache, and Global Data Services for better distributed database management |
| Manageability | Enterprise Manager Database Control, Automatic Workload Repository (AWR) | Enhanced Enterprise Manager Cloud Control with better monitoring and diagnostics capabilities, Pluggable Database management, and improved backup and recovery Options |
| SQL Enhancements | Recursive WITH clause, Regular expression enhancements | Temporal validity support, Cross-edition compatibility, Top-N queries, Improved PL/SQL compilation, Better SQL Plan Management, and Row Pattern Matching |
| Availability | Real Application Clusters (RAC), Data Guard | Enhanced availability with Application Continuity for minimizing downtime during planned maintenance or unplanned outages, Fast Application Notification (FAN) for quick notification of database changes, and Transparent Application Failover (TAF) for seamless failover |
Advantages and Disadvantages
| Version | Advantages | Disadvantages |
|---|---|---|
| 11g | Mature and stable, Extensive community support and Resources, Lower licensing costs compared to 12c | Lacks newer features and optimizations found in 12c, Limited cloud integration compared to 12c |
| 12c | Improved performance and scalability, Enhanced security features, Multitenant architecture for easier management of multiple databases, Cloud integration | Higher licensing costs compared to 11g, Requires additional training and resources for administrators to learn new features and tools |
Similarities between Oracle 11g and 12c
- Both are relational database management systems (RDBMS) based on SQL.
- Both support PL/SQL for procedural programming within the database.
- Both offer features for high availability, disaster recovery, and backup.
- Both are used for a wide range of applications, from small-scale to enterprise-level deployments.
FAQs on Oracle 11g and 12c
- Is it possible to upgrade from Oracle 11g to 12c?
Yes, Oracle provides upgrade paths and tools to facilitate the transition from 11g to 12c. - Which version is better for my organization?
The choice depends on your specific needs and budget. If you require the latest features and optimizations, 12c is a better choice. However, if you’re on a tighter budget and don’t need the newest features, 11g is still a viable option. - Is Oracle 11g still supported?
Oracle provides extended support for older versions like 11g for a certain period. It’s essential to check Oracle’s support policies for the latest information.
Feel free to ask if you have any more questions.