Oracle 12g加倍提升的稳定性与性能（oracle12g比较）

Oracle 12c: Doubled Stability and Performance Enhancement

With the fast-paced developments in the field of technology, companies are looking for reliable and efficient database management systems to handle their growing data requirements. Oracle has always been ahead of the race with its state-of-the-art database systems. The latest version, Oracle 12c, stands out with its impressive enhancements in terms of stability and performance.

Stability enhancements in Oracle 12c:

1. Multi-tenant architecture:

Oracle 12c has a multi-tenant architecture that allows multiple contners to share the same system resources, thus reducing the hardware and software requirement. Each contner is a fully-functional database with its own set of pluggable databases. This architecture greatly enhances system stability as each contner is isolated from one another, ensuring a fault-tolerant system.

2. Automatic data optimization:

Oracle 12c has an automatic data optimization feature that ensures that data is optimized and moved according to its usage frequency. This feature minimizes the need for manual optimization and helps improve system stability.

3. Real-time database recovery:

Oracle 12c uses the new Real-time Database Recovery feature, which provides minimal data-loss and greatly enhances system uptime. The feature continuously backups data in a fast, reliable, and resource-optimized manner, ensuring that the database can be easily restored to its previous state in a quick period.

Performance enhancements in Oracle 12c:

1. In-Memory column store:

Oracle 12c has an In-Memory column store, which is a new memory structure that allows users to store data in column format. This feature greatly improves performance when querying large datasets since it reduces the time it takes to search for data.

2. Hybrid Columnar Compression (HCC):

Oracle 12c includes a Hybrid Columnar Compression feature, which compresses data in a columnar format, resulting in significant storage space savings. This feature also improves system performance by reducing I/O operations as well as the memory consumption required for storage.

3. Automatic generation of adaptive execution plans:

Oracle 12c comes with an Automatic generation of adaptive execution plans feature, which provides efficient access paths for queries. It analyses the query execution plan and automatically generates the best execution plan for the current workload, which greatly enhances performance.

Overall, Oracle 12c’s stability and performance enhancements make it one of the best database management systems in the market. It helps companies reduce hardware and software costs while providing a stable and high-performing system. With its advanced features and functionalities, Oracle 12c is a must-have database management system for any company looking to manage growing data.