diff --git a/classes/connection_manager.php b/classes/connection_manager.php
index b6d19b0..6dc1cdd 100644
--- a/classes/connection_manager.php
+++ b/classes/connection_manager.php
@@ -178,11 +178,7 @@ final class Connection_Manager {
 		// --------------------------------------------------------------------------
 
 		// Convert array to object
-		if (is_array($params))
-		{
-			$params = new ArrayObject($params, ArrayObject::STD_PROP_LIST | ArrayObject::ARRAY_AS_PROPS);
-		}
-
+		$params = new ArrayObject($params, ArrayObject::STD_PROP_LIST | ArrayObject::ARRAY_AS_PROPS);
 		$params->type = strtolower($params->type);
 		$dbtype = ($params->type !== 'postgresql') ? $params->type : 'pgsql';
 
diff --git a/classes/query_builder.php b/classes/query_builder.php
index 8e063a8..48083e8 100644
--- a/classes/query_builder.php
+++ b/classes/query_builder.php
@@ -1306,8 +1306,6 @@ class Query_Builder implements Query_Builder_Interface {
 			$vals = array_merge($this->values, (array) $this->where_values);
 		}
 
-		$evals = (is_array($vals)) ? $vals : array();
-
 		$start_time = microtime(TRUE);
 
 		if (empty($vals))
@@ -1320,29 +1318,10 @@ class Query_Builder implements Query_Builder_Interface {
 		}
 
 		$end_time = microtime(TRUE);
-
 		$total_time = number_format($end_time - $start_time, 5);
 
-		// Add the interpreted query to the list of executed queries
-		foreach($evals as &$v)
-		{
-			$v = ( ! is_numeric($v)) ? htmlentities($this->db->quote($v), ENT_NOQUOTES, 'utf-8', FALSE)  : $v;
-		}
-		$esql = str_replace('?', "%s", $sql);
-		array_unshift($vals, $esql);
-		array_unshift($evals, $esql);
 
-
-		$this->queries[] = array(
-			'time' => $total_time,
-			'sql' => call_user_func_array('sprintf', $evals),
-		);
-		$this->queries['total_time'] += $total_time;
-
-		array_shift($vals);
-
-		// Set the last query to get rowcounts properly
-		$this->db->last_query = $sql;
+		$this->_append_query($vals, $sql, $total_time);
 
 		// Reset class state for next query
 		$this->reset_query();
@@ -1370,6 +1349,41 @@ class Query_Builder implements Query_Builder_Interface {
 		throw new BadMethodCallException("Method does not exist");
 	}
 
+	/**
+	 * Convert the prepared statement into readable sql
+	 *
+	 * @param array $vals
+	 * @param string $sql
+	 * @param string $total_time
+	 * @return void
+	 */
+	protected function _append_query($vals, $sql, $total_time)
+	{
+		$evals = (is_array($vals)) ? $vals : array();
+
+		// Quote string values
+		foreach($evals as &$v)
+		{
+			$v = ( ! is_numeric($v)) ? htmlentities($this->db->quote($v), ENT_NOQUOTES, 'utf-8', FALSE)  : $v;
+		}
+		$esql = str_replace('?', "%s", $sql);
+
+		// Add the query onto the array of values to pass
+		// as arguments to sprintf
+		array_unshift($evals, $esql);
+
+		// Add the interpreted query to the list of executed queries
+		$this->queries[] = array(
+			'time' => $total_time,
+			'sql' => call_user_func_array('sprintf', $evals),
+		);
+
+		$this->queries['total_time'] += $total_time;
+
+		// Set the last query to get rowcounts properly
+		$this->db->last_query = $sql;
+	}
+
 	// --------------------------------------------------------------------------
 
 	/**
diff --git a/drivers/firebird/firebird_driver.php b/drivers/firebird/firebird_driver.php
index ff5a61d..dfb4a1b 100644
--- a/drivers/firebird/firebird_driver.php
+++ b/drivers/firebird/firebird_driver.php
@@ -62,14 +62,12 @@ class Firebird extends Abstract_Driver {
 	 */
 	public function __construct($dbpath, $user='SYSDBA', $pass='masterkey', array $options = array())
 	{
-		if (isset($options[PDO::ATTR_PERSISTENT]) && $options[PDO::ATTR_PERSISTENT] == TRUE)
-		{
-			$this->conn = fbird_pconnect($dbpath, $user, $pass, 'utf-8', 0);
-		}
-		else
-		{
-			$this->conn = fbird_connect($dbpath, $user, $pass, 'utf-8', 0);
-		}
+
+		$connect_function = (isset($options[PDO::ATTR_PERSISTENT]) && $options[PDO::ATTR_PERSISTENT] == TRUE)
+			? 'fbird_pconnect'
+			: 'fbird_connect';
+
+		$this->conn = $connect_function($dbpath, $user, $pass, 'utf-8', 0);
 
 		// Throw an exception to make this match other pdo classes
 		if ( ! is_resource($this->conn)) throw new PDOException(fbird_errmsg(), fbird_errcode(), NULL);
@@ -79,13 +77,11 @@ class Firebird extends Abstract_Driver {
 		// of DB_PDO, which defines these two
 		// class variables for the other drivers
 
-		// Load the sql class
-		$class = __CLASS__."_sql";
-		$this->sql = new $class();
-
-		// Load the util class
-		$class = __CLASS__."_util";
-		$this->util = new $class($this);
+		foreach(array('sql', 'util') as $sub)
+		{
+			$class = __CLASS__ . "_{$sub}";
+			$this->$sub = new $class($this);
+		}
 	}
 
 	// --------------------------------------------------------------------------
diff --git a/drivers/firebird/firebird_util.php b/drivers/firebird/firebird_util.php
index 61f0339..ea0836b 100644
--- a/drivers/firebird/firebird_util.php
+++ b/drivers/firebird/firebird_util.php
@@ -26,7 +26,7 @@ class Firebird_Util extends DB_Util {
 
 	/**
 	 * Create an SQL backup file for the current database's structure
-	 *
+	 * @codeCoverageIgnore
 	 * @return string
 	 */
 	public function backup_structure()
@@ -40,6 +40,7 @@ class Firebird_Util extends DB_Util {
 	/**
 	 * Create an SQL backup file for the current database's data
 	 *
+	 * @codeCoverageIgnore
 	 * @param array $exclude
 	 * @param bool $system_tables
 	 * @return string
diff --git a/drivers/mysql/mysql_util.php b/drivers/mysql/mysql_util.php
index 5108a17..627b745 100644
--- a/drivers/mysql/mysql_util.php
+++ b/drivers/mysql/mysql_util.php
@@ -30,11 +30,11 @@ class MySQL_Util extends DB_Util {
 	/**
  	 * Convienience public function for creating a new MySQL table
  	 *
+	 * @codeCoverageIgnore
  	 * @param string $name
  	 * @param array $columns
  	 * @param array $constraints
  	 * @param array $indexes
- 	 *
  	 * @return string
  	 */
 	public function create_table($name, $columns, array $constraints=array(), array $indexes=array())
@@ -125,10 +125,7 @@ class MySQL_Util extends DB_Util {
 		foreach($dbs as &$d)
 		{
 			// Skip built-in dbs
-			if ($d == 'mysql')
-			{
-				continue;
-			}
+			if ($d == 'mysql') continue;
 
 			// Get the list of tables
 			$tables = $this->driver_query("SHOW TABLES FROM `{$d}`", TRUE);
diff --git a/drivers/sqlite/sqlite_util.php b/drivers/sqlite/sqlite_util.php
index 9b9cf6e..8dd5f60 100644
--- a/drivers/sqlite/sqlite_util.php
+++ b/drivers/sqlite/sqlite_util.php
@@ -26,6 +26,7 @@ class SQLite_Util extends DB_Util {
 	/**
 	 * Convenience public function to create a new table
 	 *
+	 * @codeCoverageIgnore
 	 * @param string $name //Name of the table
 	 * @param array $columns //columns as straight array and/or column => type pairs
 	 * @param array $constraints // column => constraint pairs
@@ -98,6 +99,7 @@ class SQLite_Util extends DB_Util {
 	/**
 	 * Create an SQL backup file for the current database's data
 	 *
+	 * @codeCoverageIgnore
 	 * @param array $excluded
 	 * @return string
 	 */
diff --git a/tests/core/db_test.php b/tests/core/db_test.php
index 25da4bd..bf76f5e 100644
--- a/tests/core/db_test.php
+++ b/tests/core/db_test.php
@@ -56,7 +56,7 @@ abstract class DBTest extends Query_TestCase {
 
 	public function testBackupData()
 	{
-		$this->assertTrue(is_string($this->db->util->backup_data(array('create_delete'))));
+		$this->assertTrue(is_string($this->db->util->backup_data(array('create_delete', TRUE))));
 	}
 
 	// --------------------------------------------------------------------------
diff --git a/tests/databases/firebird/FirebirdQBTest.php b/tests/databases/firebird/FirebirdQBTest.php
index 8efc6d3..3c36da1 100644
--- a/tests/databases/firebird/FirebirdQBTest.php
+++ b/tests/databases/firebird/FirebirdQBTest.php
@@ -40,8 +40,6 @@ class FirebirdQBTest extends QBTest {
 		$this->db = Query($params);
 	}
 
-	// --------------------------------------------------------------------------
-
 	public function testGetNamedConnectionException()
 	{
 		try
@@ -54,8 +52,6 @@ class FirebirdQBTest extends QBTest {
 		}
 	}
 
-	// --------------------------------------------------------------------------
-
 	public function testGetNamedConnection()
 	{
 		$dbpath = QTEST_DIR.QDS.'db_files'.QDS.'FB_TEST_DB.FDB';
@@ -74,8 +70,6 @@ class FirebirdQBTest extends QBTest {
 		$this->assertReference($f_conn, Query('fire'));
 	}
 
-	// --------------------------------------------------------------------------
-
 	public function testGetCompiledSelect()
 	{
 		$sql = $this->db->get_compiled_select('create_test');
@@ -170,4 +164,9 @@ class FirebirdQBTest extends QBTest {
 
 		$this->assertEqual($expected, $error);
 	}
+
+	public function testBackupStructure()
+	{
+		$this->assertEquals('', $this->db->util->backup_structure());
+	}
 }
\ No newline at end of file