ALTER TABLE dbo.InvImpDetalle ADD
	valoruniimp decimal(18, 4) NOT NULL CONSTRAINT DF_InvImpDetalle_valoruniimp DEFAULT 0,
	totallineaimp decimal(18, 4) NOT NULL CONSTRAINT DF_InvImpDetalle_totallineaimp DEFAULT 0,
	costoimp decimal(18, 4) NOT NULL CONSTRAINT DF_InvImpDetalle_costoimp DEFAULT 0,
	porcimp decimal(18, 4) NOT NULL CONSTRAINT DF_InvImpDetalle_porcimp DEFAULT 0
GO
ALTER TABLE dbo.InvImpDetalle
  ALTER
    COLUMN cantidad decimal(18, 4)