Question

I like to use parameter for FILENAME in the code below, instead of N’D:\DBName.mdf’ and N’D:\DBName.ldf’.

How can I change it in the .sql file and how to call it from C# with the parameters?
Thanks.

SQL script:

CREATE DATABASE [DBName] ON  PRIMARY 
( NAME = N'DBName', FILENAME = N'D:\DBName.mdf' , SIZE = 3072KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
 LOG ON 
( NAME = N'DBName_log', FILENAME = N'D:\DBName.ldf' , SIZE = 3456KB , MAXSIZE = 2048GB , FILEGROWTH = 10%)
END

C# code

string appPathDB = Path.GetDirectoryName(Application.ExecutablePath) + "\\DBName.mdf";
string appPathLog = Path.GetDirectoryName(Application.ExecutablePath) + "\\DBName_log.ldf";

private void CreateDatabase()
{
   string connection = "Data Source=localhost;Initial Catalog=master;User ID=sa;Password=abcd1234";
   FileInfo file = new FileInfo(Path.GetDirectoryName(Application.ExecutablePath) + "\\DBName.sql");
   string script = file.OpenText().ReadToEnd();
   ExecSql(script, connection, "DBName");
   file.OpenText().Close();
}

public void ExecSql(string sql, string connectionString, string dataBaseNameToPrepend)
{
   using (SqlConnection conn = new SqlConnection(connectionString))
   {
      conn.Open();
      Server server = new Server(new ServerConnection(conn));
      server.ConnectionContext.ExecuteNonQuery(sql);
      server.ConnectionContext.Disconnect();
      server.ConnectionContext.ExecuteNonQuery(sql);
      MessageBox.Show("DB Uploaded.");
   }
}

Answer 1

Make below changes to you script file and save it.

CREATE DATABASE [DBName] ON  PRIMARY 
( NAME = N'DBName', FILENAME = N'DB_NAME_MDF' , SIZE = 3072KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
 LOG ON 
( NAME = N'DBName_log', FILENAME = N'DB_NAME_LDF' , SIZE = 3456KB , MAXSIZE = 2048GB , FILEGROWTH = 10%)
END

Add the below lines to you code.

private void CreateDatabase()
    {
        string connection = "Data Source=localhost;Initial Catalog=master;User ID=sa;Password=abcd1234";
        FileInfo file = new FileInfo(Path.GetDirectoryName(Application.ExecutablePath) + "\\DBName.sql");
        string script = file.OpenText().ReadToEnd();
        script = script.Replace("DB_NAME_MDF", appPathDB).Replace("DB_NAME_LDF", appPathLog);
        ExecSql(script, connection, "DBName");
        file.OpenText().Close();
    }