The index points directly to each record found as a result of a query and indicates if a record is removed.

索引直接指向作为查询结果找到的每个记录并指示记录是否被移除。

youdao

The index points directly to each record found as a result of a query and indicates if a record is removed.

索引直接指向作为查询结果找到的每个记录并指示记录是否被移除。

youdao