
   IF NOT EXISTS (SELECT * 
					FROM INFORMATION_SCHEMA.COLUMNS 
				   WHERE TABLE_NAME = 'EST_NF_ENT_FINANCEIRO_CANCEL'
				     AND COLUMN_NAME = 'VALOR_ATUAL'
				  )
	BEGIN 
		ALTER TABLE EST_NF_ENT_FINANCEIRO_CANCEL ADD VALOR_ATUAL VARCHAR(10)  COLLATE SQL_LATIN1_GENERAL_CP1_CI_AS  NULL CONSTRAINT DF_EST_NF_ENT_FINANCEIRO_CANCEL_VALOR_ATUAL DEFAULT ('')  
	END 