IF NOT EXISTS (SELECT 1 FROM SYSCOLUMNS WHERE ID = OBJECT_ID('EST_TRIB_CONF_GRP_CPL') AND name = 'MVA_AJUSTADO')
begin
ALTER TABLE dbo.EST_TRIB_CONF_GRP_CPL ADD
	MVA_AJUSTADO int NOT NULL CONSTRAINT DF_EST_TRIB_CONF_GRP_CPL_MVA_AJUSTADO DEFAULT 0
end