The initial extent is a set of contiguous blocks in a database segment that is automatically allocated when the segment is created. Any set of contiguous blocks allocated after the initial extent is called a next extent. The total number of extents that can be allocated in a database is limited by the amount of storage space available, or in some cases, by the program used.
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
The term extent is sometimes used in reference to any contiguous space (for example, a set of sectors) on a hard drive that is reserved for a particular file, folder, or application.