Write down for Segments, Extents, and Blocks

Segments, Extents, and Blocks(段、区、块)

• Segments exist in a tablespace.
• Segments are collections of extents.
• Extents are collections of data/undo blocks.  8k
• Data/undo blocks are mapped to disk blocks.

引用下官方的关系图

标签：down,blocks,Blocks,Segments,undo,Write,collections,Extents
来源： https://www.cnblogs.com/xingren/p/16217470.html