IF NOT EXISTS (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='EST_PED_VD' AND COLUMN_NAME = 'VLR_SUBSIDIO_MARKETPLACE')
BEGIN 
	ALTER TABLE EST_PED_VD ADD VLR_SUBSIDIO_MARKETPLACE MONEY CONSTRAINT DF_EST_PED_VD_VLR_SUBSIDIO_MARKETPLACE DEFAULT 0
END 
 