选择不同的记录

Question

我的问题是LAME。 我知道！ 但是我还不能弄清楚！ 这是我要执行的操作：我有一组记录，在“ JobNumber”和“ JobID”处重复。 这是我选择记录的查询：

SELECT  dbo.InvoiceLineDetail.JobNumber,
    dbo.InvoiceLineDetail.PatientName,
    dbo.InvoiceLineDetail.CustomerAccountName AS Name,
    COALESCE(InvoiceLineDetail.ShipAddressAddr2 + ' ',
        '') + COALESCE(InvoiceLineDetail.ShipAddressAddr3+' ',
        '') + COALESCE(InvoiceLineDetail.ShipAddressAddr4 +' ',
        '') + coalesce(InvoiceLineDetail.ShipAddressCity +' ',
        '') + COALESCE(InvoiceLineDetail.ShipAddressState +' ',
        '') + COALESCE(InvoiceLineDetail.ShipAddressCountry,
        '') as [Address],
     dbo.InvoiceLineDetail.ShipAddressPostalCode AS ZipCode,
     dbo.JobStatus.JobTableId AS JobID,
     dbo.JobStatus.OrderType,
     dbo.JobStatus.ShipTrackingNumber as Tracking#,
     dbo.JobStatus.ShipMethodTransmitted as TransmitMethod,
     dbo.JobStatus.DateShipTransmitProcessed as DateProcessed,
     dbo.JobStatus.ShipmentProcessedBy as ProcesssedBy,
    dbo.JobStatus.Critical,
    dbo.View_JobsToShipCount.JobsToShip,
    dbo.JobStatus.ShipTransmitStatus as Status,
    dbo.JobStatus.InvoiceStatus,
    dbo.InvoiceLineDetail.Quantity
FROM dbo.View_JobsToShipCount 
LEFT OUTER JOIN dbo.InvoiceLineDetail 
    ON dbo.View_JobsToShipCount.Name = dbo.InvoiceLineDetail.CustomerAccountName 
LEFT OUTER JOIN dbo.JobStatus 
    ON dbo.InvoiceLineDetail.JobID = dbo.JobStatus.JobTableId

WHERE (dbo.InvoiceLineDetail.ChargeGroup = 'LENS') and ((dbo.JobStatus.InvoiceStatus = N'IR') OR
  (dbo.JobStatus.ShipTransmitStatus = N'ReadyToShip'))

现在，我希望JobNumber和JobID为UNIQUE值。 我两个都得到相同的记录。

谢谢你的帮助 ：）

Answer 1

如果所有其他信息都相同，只需在查询中添加一个“ DISTINCT”。

注意：表别名确实有助于提高可读性。