protected function loadQueries($sqlQueriesFile) {
        // Read the sql queries file
        if (!file_exists($sqlQueriesFile))
            throw new \Exception("File with mysql queries not found at expected location: $sqlQueriesFile");

        if (!($this->queries = \Symfony\Component\Yaml\Yaml::parse(file_get_contents($sqlQueriesFile))))
            throw new \Exception("Could not parse yaml file with mysql queries: $sqlQueriesFile");
    }