Oracle is one of the most popular relational database management systems in the world, and it has been constantly evolving to meet the changing needs of businesses. In this blog post, we will discuss the differences between Oracle 11g and 12c databases, two of the most popular versions of Oracle.
Oracle 11g Database
Oracle 11g was released in 2007 and was the successor to Oracle 10g. It introduced many new features, including enhanced security features such as transparent data encryption and auditing, new indexing options such as function-based indexes, and improved performance tuning tools.
One of the most notable features of Oracle 11g is the introduction of Real Application Testing (RAT), which enables users to capture and replay production workloads to test new database changes. It also includes automatic SQL tuning, which can automatically tune SQL statements for better performance.
Oracle 12c Database
Oracle 12c was released in 2013 and was the successor to Oracle 11g. It introduced many new features, including a new multitenant architecture, which enables multiple pluggable databases to run on a single container database, thus reducing the overhead of managing multiple databases.
Another notable feature of Oracle 12c is the introduction of Oracle Database In-Memory, which enables faster processing of analytical queries by storing data in memory. It also includes enhancements to security features, such as support for privileged user auditing and encryption enhancements.
One of the most significant changes in Oracle 12c is the introduction of the Oracle Cloud, which provides a platform for Oracle's cloud services. It includes support for hybrid cloud deployments, which enables users to move workloads between on-premises and cloud environments.
Oracle 11g vs. 12c
There are several key differences between Oracle 11g and 12c databases. One of the most significant is the introduction of the multitenant architecture in Oracle 12c, which enables users to manage multiple pluggable databases on a single container database. This can significantly reduce the overhead of managing multiple databases.
Another significant difference is the introduction of Oracle Database In-Memory in Oracle 12c, which can significantly improve the performance of analytical queries. This feature is not available in Oracle 11g.
Oracle 12c also includes enhancements to security features, such as support for privileged user auditing and encryption enhancements, which were not available in Oracle 11g.
Conclusion
In conclusion, both Oracle 11g and 12c databases are powerful and reliable database management systems. Oracle 12c includes many new features and enhancements over Oracle 11g, including a new multitenant architecture and support for hybrid cloud deployments. However, both versions are widely used and continue to be supported by Oracle. Ultimately, the choice of which version to use depends on the specific needs and requirements of your business.
