Each segment is composed of extents, which are groups of contiguous data blocks.
Oracle manages the use of extents, allocating a new one when one is full.
The incremental extent can be the same size as the initial extent, or you can indicate that each subsequent extent must be a certain percentage larger than the previous extent.
For example, you could indicate that each subsequent extent must be 50% larger than the previous one.
You can also specify the minimum and maximum number of extents. The minimum number of extents controls how many extents are initially allocated when you create the object.
If you specify a maximum number of extents, it has the effect of limiting the size of the table.
The next lesson shows how to set extent parameters for database objects.
Click the Quiz link below to answer a few questions about space management.
Space Management - Quiz