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(select `mem`.`ComputerID` AS `ComputerID`,sum(if((`mem`.`Size` > 0),1,0)) AS `numChips`,count(`mem`.`Size`) AS `numSlots`,sum(`mem`.`Size`) AS `TotalSize` from `labtech`.`inv_memoryslots` `mem` group by `mem`.`ComputerID`)0 rows
(select `mem`.`ComputerID` AS `ComputerID`,sum(if((`mem`.`Size` > 0),1,0)) AS `numChips`,count(`mem`.`Size`) AS `numSlots`,sum(`mem`.`Size`) AS `TotalSize` from `labtech`.`inv_memoryslots` `mem` group by `mem`.`ComputerID`)