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FileGroup Object

This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.

The FileGroup object exposes the attributes of a Microsoft SQL Server filegroup.

SQL-DMO object model that shows the current object

Remarks

A SQL Server filegroup categorizes the operating system files containing data from a single SQL Server database to simplify database administration tasks, such as backup. A filegroup is a property of a SQL Server database and cannot contain the operating system files of more than one database, though a single database can contain more than one filegroup.

When a database is created, it is created on exactly one filegroup named PRIMARY. After database creation, filegroups can be added to the database. A filegroup name can be specified in a CREATE TABLE or CREATE INDEX statement, directing data storage for a database.

With the FileGroup object, you can:

  • Create a SQL Server filegroup.

  • Remove an existing SQL Server filegroup.

  • Manage the physical storage of a SQL Server database by adding or removing DBFile objects to the DBFiles collection.

The Name property of a FileGroup object uses the SQL Server data type sysname. The Name property must be unique within the list of filegroups of a SQL Server database.

To create a SQL Server filegroup

  1. Create a FileGroup object.

  2. Set the Name property.

  3. Add the FileGroup object to the FileGroups collection of a connected Database object.

Note

The FileGroup object is compatible with instances of SQL Server version 7.0 and later. However, the FileGroup2 object extends the functionality of the FileGroup object for use with features that were introduced in SQL Server 2000.