The amount of virtual Shared memory that the database server allocates for a sort depends on the number of rows to be sorted and the size of the row, and whether PDQPIORIDY is set for the server.

数据库服务器分配给排序的虚拟共享内存的数量取决于要进行排序的行数、每一行的大小以及是否为服务器设置了PDQPIORIDY。

youdao

Increments the row pointer for the next virtual user or, if the end of the file is reached, go back to the beginning of the file and reset the pointer to 1.

为下一位虚拟用户增加行指针或者，如果已经到达文件的末尾，就回到这个文件的起始，使指针重新回到1。

youdao

To implement a fake fact query subject, either create a one row table in the database or use a virtual table such as SYSDUMMY1 for DB2 or Dual for Oracle.

要实现伪事实查询主题，就要在数据库中创建一个一行的表格，或者使用虚拟表，例如SYSDUMMY1在DB 2中使用SYSDUMMY1，或者在Oracle中使用Dual。

youdao

Just like in Honeycomb, a virtual menu button (represented here by three vertically stacked dots) appears to the right of the main row of softkeys when running legacy apps.

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