SELECT " " As Source, Code, Date_Maintenance As fDate ,[Stop] As tDate, '0' As Cost, Status_Maintinance As Description From Maintenance Union SELECT "" As Source, Code, DateOfStop As fDate ,[Repaired] As tDate,Losses As Cost, Reason As Description From Broken UNION SELECT " " As Source, Code, "" As fDate ,"" As tDate,SparePrice As Cost, Reason As Description From Spare; 