NamedFileGroup Element (ADF)
Contains elements that describe a named filegroup and its database files.
语法
<Database>
<NamedFileGroup>
Element Characteristics
| Characteristic | Description |
|---|---|
Data type |
None. |
Default value |
None. |
Occurrence |
Optional one or more times per Database element. |
Updates |
Cannot be added or deleted. |
Element Relationships
| Relationship | Elements |
|---|---|
Parent element |
|
Child elements |
备注
The NamedFileGroup element contains the definition of one filegroup. Every database has a PRIMARY filegroup, and if you define application database properties, you must have a PRIMARY filegroup. You can have additional filegroups to group additional data files together for administrative, data allocation, and placement purposes. For more information about files and filegroups, see 了解文件和文件组.
If you want to alter the application database after creating the application, use the Microsoft SQL Server tools, such as SQL Server Management Studio.
示例
The following example shows how to create two filegroups, one named Primary and one named Secondary. The Primary filegroup has one data file and the Secondary filegroup has with two data files.
<NamedFileGroup>
<FileGroupName>Primary</FileGroupName>
<FileSpec>
<LogicalName>StockPrimary</LogicalName>
<FileName>C:\SQLData\StockPrimary.mdf</FileName>
<Size>2GB</Size>
<MaxSize>5GB</MaxSize>
<GrowthIncrement>500MB</GrowthIncrement>
</FileSpec>
</NamedFileGroup>
<NamedFileGroup>
<FileGroupName>Secondary</FileGroupName>
<FileSpec>
<LogicalName>StockSecondary1</LogicalName>
<FileName>D:\Data\StockSecondary1.ndf</FileName>
<Size>1000MB</Size>
<MaxSize>5000MB</MaxSize>
<GrowthIncrement>25%</GrowthIncrement>
</FileSpec>
<FileSpec>
<LogicalName>StockSecondary2</LogicalName>
<FileName>D:\Data\StockSecondary2.ndf</FileName>
</FileSpec>
</NamedFileGroup>
请参阅
参考
Application Definition File Reference
其他资源
CREATE DATABASE (Transact-SQL)
定义应用程序数据库
更新实例和应用程序