IF NOT EXISTS  (SELECT 1 FROM SYS.COLUMNS WHERE NAME ='VLR_CUSTO_MD' AND OBJECT_ID =OBJECT_ID('EST_PROD_TRANSF_SOLICITACAO_ITENS') )
BEGIN 
	ALTER TABLE EST_PROD_TRANSF_SOLICITACAO_ITENS ADD VLR_CUSTO_MD MONEY NULL;
END;
