file group

• 文件组

file group的用法和样例：

例句

1. A file can be a member of only one filegroup.
   一个文件只能是一个文件组的成员。
2. This filegroup contains the primary data file and any secondary files that are not put into other filegroups.
   此文件组包含主要数据文件和未放入其他文件组的所有次要文件。