diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index d3359e1..594fcce 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -192,10 +192,24 @@
 	// --------------------------------------------------------------------
 
 	/**
+	 * Select database
+	 *
+	 * This is just a dummy method to allow drivers without such
+	 * functionality to not declare it, while others will override it.
+	 *
+	 * @return      bool
+	 */
+	public function db_select()
+	{
+		return TRUE;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Set client character set
 	 *
 	 * @param	string
-	 * @param	string
 	 * @return	bool
 	 */
 	public function db_set_charset($charset)