 			}
 		}
 	}
-
+}
+
+extension Statement {
 	/// Binds the *n* parameters in `values` to the first *n* SQL parameters of `self`.
 	///
 	/// - parameter values: A series of values to bind to SQL parameters
 	///
 	/// - throws: An error if one of `values` couldn't be bound
-	public func bind<T: ParameterBindable>(parameters values: T...) throws  {
-		try bind(parameters: values)
-	}
-
-	/// Binds the *n* parameters in `values` to the first *n* SQL parameters of `self`.
-	///
-	/// - parameter values: A series of values to bind to SQL parameters
-	///
-	/// - throws: An error if one of `values` couldn't be bound
-	public func bind<T: ParameterBindable>(parameters values: T?...) throws  {
-		try bind(parameters: values)
+	public func bind(parameterValues values: ParameterBindable?...) throws  {
+		try bind(parameterValues: values)
 	}
 
 	/// Binds *value* to SQL parameter *name* for each (*name*, *value*) in `parameters`.

	/// - parameter sql: The SQL statement to execute
	/// - parameter parameters: A dictionary of names and values to bind to SQL parameters
	/// - parameter block: A closure called for each result row
	///
	/// - throws: Any error thrown in `block` or an error if `sql` couldn't be compiled, `parameters` couldn't be bound, or the statement couldn't be executed
	public func execute<T: ParameterBindable>(sql: String, parameters: [String: T], _ block: ((_ row: Row) throws -> ())? = nil) throws {
		let statement = try prepare(sql: sql)
		try statement.bind(parameters: parameters)
		try statement.execute(block)
	}

	/// Executes `stmt` with *value* bound to SQL parameter *name* for each (*name*, *value*) in `parameters` and applies `block` to each result row.
	///
	/// - parameter sql: The SQL statement to execute
	/// - parameter parameters: A dictionary of names and values to bind to SQL parameters
	/// - parameter block: A closure called for each result row
	///
	/// - throws: Any error thrown in `block` or an error if `sql` couldn't be compiled, `parameters` couldn't be bound, or the statement couldn't be executed
	public func execute<T: ParameterBindable>(sql: String, parameters: [String: T?], _ block: ((_ row: Row) throws -> ())? = nil) throws {
		let statement = try prepare(sql: sql)
		try statement.bind(parameters: parameters)
		try statement.execute(block)
	}

	/// Executes `stmt` with the *n* parameters in `values` bound to the first *n* SQL parameters of `stmt` and applies `block` to each result row.

			}
		}
	}
}

extension Statement {
	/// Binds the *n* parameters in `values` to the first *n* SQL parameters of `self`.
	///
	/// - parameter values: A sequence of values to bind to SQL parameters
	///
	/// - throws: An error if one of `values` couldn't be bound
	public func bind<S: Sequence>(parameterValues values: S) throws where S.Iterator.Element == ParameterBindable? {
		var index: Int32 = 1
		for value in values {
			if let value = value {
