Difference between a Table Space and a Buffer Pool in DB2

In DB2, a table space is a logical entity that contains one or more tables, indexes, and other objects. It is used to organize and store data in a structured format. On the other hand, a buffer pool is a memory cache that stores data pages read from disk to improve performance by reducing the need to access disk storage repeatedly.

The main difference between a table space and a buffer pool is that a table space is a storage area for database objects, while a buffer pool is a memory cache for frequently accessed data pages. Table spaces are used to allocate storage for database objects, while buffer pools are used to improve performance by caching data pages in memory.

Overall, table spaces are used for storage allocation and organization, while buffer pools are used for performance optimization in DB2 databases.