Blobspace: a blobspace is a logical storage unit composed of one or more chunks that store only TEXT and BYTE data.
blobspace： blobspace是一个逻辑存储单元，它由一个或更多的区块组成，其中只存储TEXT和BYTE数据。
Smart blobspace (sbspace) : a sbspace is a logical storage unit composed of one or more chunks that store smart large objects.
智能blobspace (sbspace)： sbspace是一个逻辑存储单元，它由一个或更多区块组成，其中存储智能大对象。
In computer storage, a LUN is simply the number assigned to a logical unit.
在计算机存储介质上，LUN仅是分配给逻辑单元的号码。
To efficiently manage XML data, like traditional SQL data types, DB2 USES the XML data model internally, as the logical data model and as the fundamental unit of physical storage.
为了高效地管理XML数据，像传统的SQL数据类型一样，DB 2在内部使用XML数据模型作为逻辑数据模型，同时也作为物理存储的基本单元。
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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