Access plan directives that force the optimizer to use the designated access method for data retrieval, either sequential scan or index scan.

访问计划指示，强制优化器使用指定的访问方法进行数据检索，要么是连续扫描，要么是索引扫描。

youdao

The above example shows that sequential scan and indexes are used to do the data retrieval, and the nested-loop join method is used to join all tables.

以上示例展示了如何使用连续扫描和索引来进行数据检索，以及如何使用嵌套循环连接方法来连接所有表。

youdao

The above example shows that sequential scan and indexes are used to do the data retrieval, and the nested-loop join method is used to join all tables.

以上示例展示了如何使用连续扫描和索引来进行数据检索，以及如何使用嵌套循环连接方法来连接所有表。

youdao