ROWID是什么意思 ROWID在线中文翻译

A pseudocolumn for every row in the database, which contains the address of each row, and thus is unique for every row. The fastest means of accessing any row , the ROWID contains three parts: the partition number, the number of the block within the partition, and the number of the row within the block.; 数据库中每一行所对应的一种伪列，它包含每一行的地址，因而对所有行均是唯一的。作为存取 任一行的最快的方式，ROWID包含三部分： 分区编号、分区内部字块的编号、字块内部行的编号。