In most cases only fields from one table are selected, and a structure of the database table structure type can be used as a target structure.

在大多数情况下，只从一个表选择字段，可以使用数据库表结构类型的结构作为目标结构。

youdao

A new database table structure which stores a string of sampling data as binary data into a record is presented to improve earthquake precursor data access speed.

为提高地震前兆数据库的存取效率，提出了一种把一串观测数据以二进制存储为一个记录的新的数据库表结构。

youdao

Now we must create the table structure in the database, which also wipes out the existing tables and data (if there's any) and start from scratch.

现在我们必须在数据库中创建表结构，这也会清除现有表和数据(如果有的话)，并从头开始。

youdao