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 TestDB ON PRIMARY
(
    NAME = 'TestDB_Primary',
    FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\TestDB_Prm.mdf',
    SIZE = 1 GB,
    MAXSIZE = 10 GB,
    FILEGROWTH = 1 GB
), FILEGROUP TestDB_FG1
(
    NAME = 'TestDB_FG1_1',
    FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\TestDB_FG1_1.ndf',
    SIZE = 10 MB,
    MAXSIZE = 10 GB,
    FILEGROWTH = 1 GB
),
(
    NAME = 'TestDB_FG1_2',
    FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\TestDB_FG1_2.ndf',
    SIZE = 10 MB,
    MAXSIZE = 10 GB,
    FILEGROWTH = 1 GB
) LOG ON
(
    NAME = 'TestDB_log',
    FILENAME = 'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\TestDB.ldf',
    SIZE = 10 MB,
    MAXSIZE = 10 GB,
    FILEGROWTH = 1 GB
);

go 
ALTER DATABASE TestDB MODIFY FILEGROUP TestDB_FG1 DEFAULT;
go

-- Create a table in the user-defined filegroup.
USE TestDB;
Go

CREATE TABLE MyTable
(
    col1 INT PRIMARY KEY,
    col2 CHAR(8)
)
ON TestDB_FG1;
GO