What is the difference between Teradata and Oracle?

Teradata and Oracle are two different database management systems that differ in several aspects:

1. Architecture: Teradata is a large-scale parallel processing (MPP) database system based on shared architecture, utilizing multiple nodes for data storage and processing. In contrast, Oracle is a relational database system based on a traditional client-server architecture.
2. Data models: Teradata supports relational data models, and so does Oracle, which also supports object-oriented data models.
3. Processing Capability: Due to Teradata’s parallel processing architecture, it has the ability to handle parallel queries and loads of large-scale data, with high processing power and concurrency. On the other hand, Oracle performs well in handling small-scale data, but may face performance bottlenecks when dealing with large-scale data.
4. Distributed capability: Teradata has built-in distributed functionality, allowing data to be distributed and processed across multiple nodes. In contrast, Oracle also supports distributed functionality but requires additional configuration and setup.
5. Cost: Teradata has higher costs in terms of hardware and licensing, making it suitable for large enterprises and data warehouse applications. On the other hand, Oracle has relatively lower costs, making it ideal for small to medium-sized businesses and small applications.

The appropriate database management system should be selected based on specific requirements and applications.