Understanding Oracle Segments
In the Oracle database, a segment refers to a part of the database storage used to store the data of a specific table, index, or other database object. Segments consist of data blocks, which are the basic unit of data storage. In Oracle, each table, index, or other database object has a corresponding segment to store its data. Segments can be classified into different types such as data segments, index segments, and LOB segments, used to store different types of data objects. Segments play a crucial role in the database, impacting the storage and access performance of data.