In this recipe, we will detach a database programmatically.
For the purpose of this recipe, let's create a database called TestDB and put its data files in the C:\DATA folder. Open up SQL Server Management Studio and run the following code:
IF DB_ID('TestDB') IS NOT NULL
DROP DATABASE TestDB
GO
CREATE DATABASE [TestDB]
CONTAINMENT = NONE
ON PRIMARY
( NAME = N'TestDB', FILENAME = N'C:\DATA\TestDB.mdf' , SIZE = 4096KB , FILEGROWTH = 1024KB ),
FILEGROUP [FG1]
( NAME = N'data1', FILENAME = N'C:\DATA\data1.ndf' , SIZE = 4096KB , FILEGROWTH = 1024KB ),
FILEGROUP [FG2]
( NAME = N'data2', FILENAME = N'C:\DATA\data2.ndf' , SIZE = 4096KB , FILEGROWTH = 1024KB )
LOG ON
( NAME = N'TestDB_log', FILENAME = N'C:\DATA\TestDB_log.ldf' , SIZE = 1024KB , FILEGROWTH = 10%)
GO