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- Table does not have lob data, but does have the allocation unit required to manage data pages
表没有lob数据,但具有管理数据页所需的分配单元。 - The following table lists the types of allocation units used to manage data in tables and indexes
下表列出了用于管理表和索引中的数据的分配单元类型。 - For a heap, one row is returned for the in row data allocation unit of each partition
对于堆,针对每个分区的in_row_data分配单元,返回与其对应的一行。 - Therefore, each allocation unit has at least one iam page for each file on which it has extents
因此,每个分配单元在有区的每个文件中至少有一个iam页。 - This can be an object id, hobt id, or an allocation unit id, depending on the resource type
该值可以是对象id、hobtid或分配单元id,具体视资源类型而定。 - Will not return accurate results if the table or index contains data in the row overflow allocation unit
如果表或索引在row_overflow分配单元中包含数据,则 - Iam pages are allocated as required for each allocation unit and are located randomly in the file
iam页根据需要分配给每个分配单元,在文件中的位置也是随机的。 - If a bit is 0, the extent it represents is not allocated to the allocation unit owning the iam
如果某个位是0,它所代表的区将不会分配给拥有该iam页的分配单元。 - Cumulative count of row-overflow data pages retrieved from the row overflow data allocation unit
从row_overflow_data分配单元检索到的行溢出数据页数的累积计数。 - This contention can be reduced by partitioning the object of which this allocation unit is a part
通过将此分配单元属于其一部分的对象进行分区,可以减少此争用。
Last modified time:Sun, 17 Aug 2025 00:29:56 GMT