SELECT WO_BreakerRail.ID, indRailType.RailType, indRailType.RailCode, WO_BreakerRail.CreatedPieces, WO_BreakerRail.OutsideSource, WO_BreakerRail.Charged, WO_BreakerRail.Rejected, WO_BreakerRail.RejectedToCrop, WO_BreakerRail.Date
FROM indRailType LEFT OUTER JOIN
WO_BreakerRail ON indRailType.RailCode = WO_BreakerRail.RailCode AND WO_BreakerRail.Date = @date
当它返回,也有在日期列,其中有来自WO_BreakerRail没有匹配行NULL值。有没有办法用@date替换那些NULL值?在LEFT OUTER替换返回null值JOIN