逻辑记录：表中的列是通过列名而非记录偏移量来访问的。

Logical records: The columns in a table are accessed through column names, not record offsets.

youdao

逻辑记录：表中的列是通过列名而非记录偏移量来访问的。

Logical records: The columns in a table are accessed through column names, not record offsets.

youdao