zapster94 on "Restoring website after accidentily deleting theme files via FTP"

I've accidentally deleted some theme files of my website via FTP while I was trying to export them. I have backed-up the website earlier but I can't get it to restore via PhpMyadmin -> import. It shows the following message

SQL-query:

# WordPress MySQL database backup
#
# Generated: Sunday 5. October 2014 11:44 UTC
# Hostname: localhost
# Database: <code>polis</code>
# --------------------------------------------------------
# --------------------------------------------------------
# Table: <code>wp_commentmeta</code>
# --------------------------------------------------------
#
# Delete any existing table <code>wp_commentmeta</code>
#
DROP TABLE IF EXISTS  <code>wp_commentmeta</code> ;

MySQL retourneerde: Documentatie

#1046 - No database selected

Is it possible to just extract the theme files from the .sql back-up file or does the site needs to be fully restored?