Our client\'s server got corrupted and the drives containing NDF and LDF files were gone. The only drive that survived was the one with MDF files.
There were no backups
You will need to restore your database by using sp_attach_single_file_db system stored procedure. Something like this...
USE [master]
GO
EXECUTE sp_attach_single_file_db @dbname='DB_Name',
@physname=N'C:\Path_To_Your_MDF_FILE\DB_Name.mdf'
GO
Edit
USE [master]
GO
CREATE DATABASE DB_Name
ON (FILENAME = N'C:\Path_To_Your_MDF_FILE\DB_Name.mdf')
FOR ATTACH ;
GO