ALTER TABLE `mm_TradeShow` CHANGE `ebdIncreaseAmount` `ebdIncreaseElectricityPrice` DECIMAL(11,2) NULL DEFAULT NULL; ALTER TABLE `mm_TradeShow` ADD `ebdIncreaseBoothSpacePrice` DECIMAL(11,2) NULL DEFAULT NULL AFTER `boothRepresentativePrice`; ALTER TABLE `mm_TradeShow` ADD `ebdIncreaseBoothRepresentativePrice` DECIMAL(11,2) NULL DEFAULT NULL AFTER `ebdIncreaseBoothSpacePrice`;