diff --git a/common.php b/common.php
index f7898ed..b0fb0b5 100644
--- a/common.php
+++ b/common.php
@@ -74,6 +74,25 @@ function db_filter($array, $index)
 
 // --------------------------------------------------------------------------
 
+/**
+ * Create a snake_case string from camelCase
+ *
+ * @see http://stackoverflow.com/questions/1993721/how-to-convert-camelcase-to-camel-case
+ *
+ * @param string $input
+ * @return string
+ */
+function from_camel_case($input) {
+	preg_match_all('!([A-Z][A-Z0-9]*(?=$|[A-Z][a-z0-9])|[A-Za-z][a-z0-9]+)!', $input, $matches);
+	$ret = $matches[0];
+	foreach ($ret as &$match) {
+		$match = $match == strtoupper($match) ? strtolower($match) : lcfirst($match);
+	}
+	return implode('_', $ret);
+}
+
+// --------------------------------------------------------------------------
+
 /**
  * Zip a set of arrays together on common keys
  *
diff --git a/core/abstract/abstract_driver.php b/core/abstract/abstract_driver.php
index 6df590b..e4e6abf 100644
--- a/core/abstract/abstract_driver.php
+++ b/core/abstract/abstract_driver.php
@@ -254,25 +254,6 @@ abstract class Abstract_Driver extends \PDO implements Driver_Interface {
 
 	// --------------------------------------------------------------------------
 
-	/**
-	 * Sets the table prefix on the passed string
-	 *
-	 * @param string $str
-	 * @return string
-	 */
-	protected function _prefix($str)
-	{
-		// Don't prefix an already prefixed table
-		if (strpos($str, $this->table_prefix) !== FALSE)
-		{
-			return $str;
-		}
-
-		return $this->table_prefix.$str;
-	}
-
-	// --------------------------------------------------------------------------
-
 	/**
 	 * Surrounds the string with the databases identifier escape characters
 	 *
@@ -318,30 +299,6 @@ abstract class Abstract_Driver extends \PDO implements Driver_Interface {
 
 	}
 
-	// --------------------------------------------------------------------------
-
-	/**
-	 * Helper method for quote_ident
-	 *
-	 * @param mixed $str
-	 * @return mixed
-	 */
-	public function _quote($str)
-	{
-		// Check that the current value is a string,
-		// and is not already quoted before quoting
-		// that value, otherwise, return the original value
-		return (
-			strpos($str, $this->escape_char) !== 0
-			&& strrpos($str, $this->escape_char) !== 0
-			&& is_string($str)
-			&& ! is_numeric($str)
-		)
-			? "{$this->escape_char}{$str}{$this->escape_char}"
-			: $str;
-
-	}
-
 	// -------------------------------------------------------------------------
 
 	/**
@@ -405,7 +362,7 @@ abstract class Abstract_Driver extends \PDO implements Driver_Interface {
 	// -------------------------------------------------------------------------
 
 	/**
-	 * Return list of function for the current database
+	 * Return list of functions for the current database
 	 *
 	 * @return array
 	 */
@@ -554,18 +511,6 @@ abstract class Abstract_Driver extends \PDO implements Driver_Interface {
 		return NULL;
 	}
 
-	// -------------------------------------------------------------------------
-	// ! Abstract public functions to implement in child classes
-	// -------------------------------------------------------------------------
-
-	/**
-	 * Empty the passed table
-	 *
-	 * @param string $table
-	 * @return void
-	 */
-	abstract public function truncate($table);
-
 	// --------------------------------------------------------------------------
 
 	/**
@@ -603,5 +548,61 @@ abstract class Abstract_Driver extends \PDO implements Driver_Interface {
 
 		return array($sql, $vals);
 	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Helper method for quote_ident
+	 *
+	 * @param mixed $str
+	 * @return mixed
+	 */
+	public function _quote($str)
+	{
+		// Check that the current value is a string,
+		// and is not already quoted before quoting
+		// that value, otherwise, return the original value
+		return (
+			strpos($str, $this->escape_char) !== 0
+			&& strrpos($str, $this->escape_char) !== 0
+			&& is_string($str)
+			&& ! is_numeric($str)
+		)
+			? "{$this->escape_char}{$str}{$this->escape_char}"
+			: $str;
+
+	}
+
+	// --------------------------------------------------------------------------
+
+	/**
+	 * Sets the table prefix on the passed string
+	 *
+	 * @param string $str
+	 * @return string
+	 */
+	protected function _prefix($str)
+	{
+		// Don't prefix an already prefixed table
+		if (strpos($str, $this->table_prefix) !== FALSE)
+		{
+			return $str;
+		}
+
+		return $this->table_prefix.$str;
+	}
+
+	// -------------------------------------------------------------------------
+	// ! Abstract public functions to implement in child classes
+	// -------------------------------------------------------------------------
+
+	/**
+	 * Empty the passed table
+	 *
+	 * @param string $table
+	 * @return void
+	 */
+	abstract public function truncate($table);
+
 }
 // End of db_pdo.php
\ No newline at end of file
diff --git a/core/connection_manager.php b/core/connection_manager.php
index bb4dcef..587be38 100644
--- a/core/connection_manager.php
+++ b/core/connection_manager.php
@@ -84,7 +84,6 @@ final class Connection_Manager {
 	 */
 	public static function get_instance()
 	{
-
 		// @codeCoverageIgnoreStart
 		if (self::$instance === null)
 		{
@@ -115,11 +114,9 @@ final class Connection_Manager {
 		{
 			return end($this->connections);
 		}
-		else
-		{
-			// You should actually connect before trying to get a connection...
-			throw new \InvalidArgumentException("The specified connection does not exist");
-		}
+
+		// You should actually connect before trying to get a connection...
+		throw new \InvalidArgumentException("The specified connection does not exist");
 	}
 
 	// --------------------------------------------------------------------------
diff --git a/core/interfaces/driver_interface.php b/core/interfaces/driver_interface.php
index 98835af..426fb94 100644
--- a/core/interfaces/driver_interface.php
+++ b/core/interfaces/driver_interface.php
@@ -33,6 +33,16 @@ interface Driver_Interface {
 	 */
 	public function __construct($dsn, $username=NULL, $password=NULL, array $driver_options = array());
 
+	/**
+	 * Simplifies prepared statements for database queries
+	 *
+	 * @param string $sql
+	 * @param array $data
+	 * @return \PDOStatement | FALSE
+	 * @throws \InvalidArgumentException
+	 */
+	public function prepare_query($sql, $data);
+
 	/**
 	 * Begin a transaction
 	 *
@@ -100,6 +110,21 @@ interface Driver_Interface {
 	 */
 	public function get_columns($table);
 
+	/**
+	 * Retrieve list of data types for the database
+	 *
+	 * @return array
+	 */
+	public function get_types();
+
+	/**
+	 * Retrieve indexes for the table
+	 *
+	 * @param string $table
+	 * @return array
+	 */
+	public function get_indexes($table);
+
 	/**
 	 * Retrieve foreign keys for the table
 	 *
@@ -115,6 +140,14 @@ interface Driver_Interface {
 	 */
 	public function get_tables();
 
+	/**
+	 * Retrieves an array of non-user-created tables for
+	 * the connection/database
+	 *
+	 * @return array
+	 */
+	public function get_system_tables();
+
 	/**
 	 * Return list of dbs for the current connection, if possible
 	 *
@@ -122,6 +155,41 @@ interface Driver_Interface {
 	 */
 	public function get_dbs();
 
+	/**
+	 * Return list of views for the current database
+	 *
+	 * @return array
+	 */
+	public function get_views();
+
+	/**
+	 * Return list of sequences for the current database, if they exist
+	 *
+	 * @return array
+	 */
+	public function get_sequences();
+
+	/**
+	 * Return list of functions for the current database
+	 *
+	 * @return array
+	 */
+	public function get_functions();
+
+	/**
+	 * Return list of stored procedures for the current database
+	 *
+	 * @return array
+	 */
+	public function get_procedures();
+
+	/**
+	 * Return list of triggers for the current database
+	 *
+	 * @return array
+	 */
+	public function get_triggers();
+
 	/**
 	 * Surrounds the string with the databases identifier escape characters
 	 *
@@ -169,5 +237,37 @@ interface Driver_Interface {
 	 * @return array
 	 */
 	public function driver_query($query, $filtered_index=TRUE);
+
+	/**
+	 * Returns number of rows affected by an INSERT, UPDATE, DELETE type query
+	 *
+	 * @return int
+	 */
+	public function affected_rows();
+
+	/**
+	 * Return the number of rows returned for a SELECT query
+	 * @see http://us3.php.net/manual/en/pdostatement.rowcount.php#87110
+	 *
+	 * @return int
+	 */
+	public function num_rows();
+
+	/**
+	 * Prefixes a table if it is not already prefixed
+	 *
+	 * @param string $table
+	 * @return string
+	 */
+	public function prefix_table($table);
+
+	/**
+	 * Create sql for batch insert
+	 *
+	 * @param string $table
+	 * @param array $data
+	 * @return array
+	 */
+	public function insert_batch($table, $data=array());
 }
 // End of driver_interface.php
diff --git a/core/query_builder.php b/core/query_builder.php
index 1e2fba8..bb99016 100644
--- a/core/query_builder.php
+++ b/core/query_builder.php
@@ -1315,14 +1315,26 @@ class Query_Builder implements Query_Builder_Interface {
 	 */
 	public function __call($name, $params)
 	{
-		if (method_exists($this->db, $name))
+		// Allow camel-case method calls
+		$snake_name = \from_camel_case($name);
+
+		foreach(array($this, $this->db) as $object)
 		{
-			return call_user_func_array(array($this->db, $name), $params);
+			foreach(array($name, $snake_name) as $method_name)
+			{
+				if (method_exists($object, $method_name))
+				{
+					return call_user_func_array(array($object, $method_name), $params);
+				}
+			}
+
 		}
 
 		throw new \BadMethodCallException("Method does not exist");
 	}
 
+	// --------------------------------------------------------------------------
+
 	/**
 	 * Convert the prepared statement into readable sql
 	 *
diff --git a/drivers/firebird/firebird_driver.php b/drivers/firebird/firebird_driver.php
index c241c6e..3a0ea70 100644
--- a/drivers/firebird/firebird_driver.php
+++ b/drivers/firebird/firebird_driver.php
@@ -134,12 +134,14 @@ class Firebird extends Abstract_Driver {
 	 * Empty a database table
 	 *
 	 * @param string $table
+	 * @return \PDOStatement
 	 */
 	public function truncate($table)
 	{
 		// Firebird lacks a truncate command
 		$sql = 'DELETE FROM '.$this->quote_table($table);
 		$this->statement = $this->query($sql);
+		return $this->statement;
 	}
 
 	// --------------------------------------------------------------------------
diff --git a/tests/core/db_qb_test.php b/tests/core/db_qb_test.php
index 465c1ff..e83b5a2 100644
--- a/tests/core/db_qb_test.php
+++ b/tests/core/db_qb_test.php
@@ -267,6 +267,25 @@ abstract class QBTest extends Query_TestCase {
 		$this->assertIsA($query, 'PDOStatement');
 	}
 
+	// --------------------------------------------------------------------------
+
+	public function testGroupCamelCase()
+	{
+		$query = $this->db->select('id, key as k, val')
+			->from('test')
+			->groupStart()
+			->where('id >', 1)
+			->where('id <', 900)
+			->groupEnd()
+			->orNotGroupStart()
+			->where('id =', 0)
+			->groupEnd()
+			->limit(2, 1)
+			->get();
+
+		$this->assertIsA($query, 'PDOStatement');
+	}
+
 	// --------------------------------------------------------------------------
 	// ! Where In tests
 	// --------------------------------------------------------------------------