There exist two methods of data division: one is based on attribute, and the other on record.
SLIQ算法采用了新颖的数据结构,需要预先建立属性表,所以应该采取基于属性的数据分割策略。
参考来源 - 基于PVM的SLIQ算法的并行化研究·2,447,543篇论文数据,部分数据来源于NoteExpress
They include special registers, statements, and DATA DIVISION sections.
它们包括专用寄存器、语句和DATA DIVISION部分。
In the DATA DIVISION, all files in the file SECTION have storage statically allocated and remained for the life of the run unit.
在DATA DIVISION中,FILE SECTION中的所有文件都静态分配了存储空间,并且该空间将一直保留到运行单元结束。
A useful scenario is to use a UNION ALL view to model a merger, where each branch of the UNION ALL operation represents data from a branch or division of a company.
一个有用的场景是使用UNION ALL视图来为合并建模,其中UNION ALL操作的每个分支表示来自一个分公司或公司某部门的数据。
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