An extentis a logical unit of database storage space allocation made up of a number of contiguousdata blocks. One or more extents in turn make up a segment.
区是由许多连续的数据块组成的逻辑数据库存储分配空间的单位。
An extentis a logical unit of database storage space allocation made up of a number of contiguousdata blocks. One or more extents in turn make up a segment.
区是由许多连续的数据块组成的逻辑数据库存储分配空间的单位。
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