Oracle Table & amp; Segment

Source: Internet
Author: User

What is the relationship between an Oracle Table and a Segment? The two are still confused. Let's talk about the association between them: first, we need to understand their concept: tables are logical objects, and segments are physical storage objects. Then, let's look at the relationship between them: 1. The existence of segments does not depend on tables. Other logical objects, such as indexes and materialized views, are created. 2. A common table (heap table) corresponds to a segment. 3. table creation, it does not mean creating segments, such as a Temporary Table (Global Temporary Table); 4. A Table can also create multiple segments, such as a Partition Table; 5, multiple tables can coexist in one segment, for example, Cluster Table ).

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