IF NOT EXISTS (SELECT * FROM SYS.COLUMNS WHERE NAME = 'PERC_FECOP_ST' AND OBJECT_ID = OBJECT_ID('EST_NF_ENT_DANFE_PROVISORIO_ITENS'))
BEGIN
ALTER TABLE DBO.EST_NF_ENT_DANFE_PROVISORIO_ITENS ADD	PERC_FECOP_ST MONEY NULL

ALTER TABLE DBO.EST_NF_ENT_DANFE_PROVISORIO_ITENS ADD CONSTRAINT DF_EST_NF_ENT_DANFE_PROVISORIO_ITENS_PERC_FECOP_ST DEFAULT 0 FOR PERC_FECOP_ST
END