IF NOT EXISTS(SELECT * FROM   INFORMATION_SCHEMA.COLUMNS WHERE  TABLE_NAME = 'Trn_Face' AND COLUMN_NAME = 'FechaValidacion')
	ALTER TABLE Trn_Face add FechaValidacion datetime
GO
ALTER TABLE Trn_TraEspPasajeros ADD
FechaNac SMALLDATETIME,
IncluirPeriodo BIT DEFAULT 0 NOT NULL