How do I execute a sql-file inside D code

[Anders S via Digitalmars-d-learn]

I'm creating an application that connect to a database and write 
data from another application. Now when I start the application I 
want it to check if the database exists and if not create the 
database and it's tables.

I have everything working IF the database and tables exist.
Use this code to check
conn.exec("CREATE DATABASE IF NOT EXISTS boxweb;");

however haven't found a way to run the sql file that create the 
tables. The file is in the source folder

Any ideas ?