IF NOT EXISTS( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'GLB_CONFIG_PRECO_RESSUP_EST_PROD'  AND COLUMN_NAME = 'VLR_CUSTO_IT')
BEGIN
        ALTER TABLE GLB_CONFIG_PRECO_RESSUP_EST_PROD
        ADD VLR_CUSTO_IT MONEY NULL;
END;