SQL server数据库创建代码，filegroup文件组修改，

以下示例在 SQL Server 实例上创建了一个数据库。该数据库包括一个主数据文件、一个用户定义文件组和一个日志文件。主数据文件在主文件组中，而用户定义文件组包含两个次要数据文件。ALTER DATABASE 语句将用户定义文件组指定为默认文件组。然后通过指定用户定义文件组来创建表。

USE master;
GO
-- Create the database with the default data
-- filegroup and a log file. Specify the
-- growth increment and the max size for the
-- primary data file.
CREATE DATABASE MyDB
ON PRIMARY
( NAME=\'MyDB_Primary\',
FILENAME=
\'c:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\data\MyDB_Prm.mdf\',
SIZE=4MB,
MAXSIZE=10MB,
FILEGROWTH=1MB),
FILEGROUP MyDB_FG1
( NAME = \'MyDB_FG1_Dat1\',
FILENAME =
\'c:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\data\MyDB_FG1_1.ndf\',
SIZE = 1MB,
MAXSIZE=10MB,
FILEGROWTH=1MB),
( NAME = \'MyDB_FG1_Dat2\',
FILENAME =
\'c:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\data\MyDB_FG1_2.ndf\',
SIZE = 1MB,
MAXSIZE=10MB,
FILEGROWTH=1MB)
LOG ON
( NAME=\'MyDB_log\',
FILENAME =
\'c:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\data\MyDB.ldf\',
SIZE=1MB,
MAXSIZE=10MB,
FILEGROWTH=1MB);
GO
ALTER DATABASE MyDB 
MODIFY FILEGROUP MyDB_FG1 DEFAULT;
GO

-- Create a table in the user-defined filegroup.
USE MyDB;
CREATE TABLE MyTable
( cola int PRIMARY KEY,
colb char(8) )
ON MyDB_FG1;
GO