我一直在度过一段可怕的时光。我创建了一个存储过程来返回相应的记录，但其中一个表有多个打印作业，因此它返回多个记录。我只想要最近请求的打印作业返回，我无法正常工作。
请帮忙！
SELECT PrintJobs.WORDERKey,
PrintJobs.JobNumber,
WORDER.U_DateRequired AS DateRequired,
ProductMaster.PartFileItemID,
WORDER.ManufacturingDepartment AS MfgDept,
PrintJobs.Copies AS LabelCopies,
PrintJobs.ExpiryDate AS JobExpiryDate,
PrintJobs.Batch,
PrintJobs.JulianDate AS JobJulianDate,
ProductMaster.Description,
ProductMaster.PackFormat,
ProductMaster.IngDec,
ProductMaster.BarCodeNumber,
ProductMaster.CustomerProductCode,
ProductMaster.CriticalInstruction,
ProductMaster.StorageInstruction,
ProductMaster.MixedCaseTitle,
ProductMaster.MixedCode1,
ProductMaster.MixedCode2,
ProductMaster.MixedCode3,
ProductMaster.MixedCode4,
ProductMaster.MixedDescription1,
ProductMaster.MixedDescription2,
ProductMaster.MixedDescription3,
ProductMaster.MixedDescription4,
ProductMaster.MixedIngDec1,
ProductMaster.MixedIngDec2,
ProductMaster.MixedIngDec3,
ProductMaster.MixedIngDec4,
ProductMaster.CookingInstruction,
ProductMaster.LogoFilename,
ProductMaster.ProductExpiryRule,
ExpiryRulesMaster.GS1_AppID,
ProductMaster.LabelTemplateID,
CASE WHEN ProductMaster.PartFileItemID IS NULL THEN 'N' ELSE 'Y' END AS LabelDefExists,
LabelTemplateMaster.FileName,
CASE WHEN [DateFormat] = 'Default' THEN ExpiryRulesMaster.DateFormatString ELSE [DateFormat] END AS DateFormatString,
ExpiryRulesMaster.DateRounding,
ExpiryRulesMaster.ExcludeXmasNewYear,
PART.ExternalShelfLifeTotalDays,
CustomOptions.Tagline,
CustomOptions.ShortName AS CustShortName,
ExpiryRulesMaster.LabelText AS ExpiryRuleLabelText,
ProductMaster.inner_hDescription,
ProductMaster.inner_vDescription,
ProductMaster.inner_CustCode,
ProductMaster.inner_Storage,
ProductMaster.inner_WarningMsg,
ProductMaster.inner_Dateformat,
ProductMaster.inner_SpecialCode,
ProductMaster.LabelType,
ProductMaster.inner_MicroSuiteCode,
ProductMaster.inner_PackWeight,
ProductMaster.inner_JDateFormat,
ProductMaster.CustomOptionID,
ProductMaster.inner_PrintLogo,
PART.NominalWeight,
ProductMaster.IngDec_html,
ProductMaster.IngDec_Active,
PrintJobs.PrintJobsID,
MaxJobs.MaxJob,
PrintJobs.DateEntered
FROM ProductMaster RIGHT OUTER JOIN
(
SELECT Partfileitemid,
--JobNumber,
MAX(dateentered) MaxJob
FROM PrintJobs
GROUP BY PartFileItemID
)
MaxJobs ON ProductMaster.PartFileItemID = MaxJobs.PartFileItemID RIGHT OUTER JOIN
PrintJobs ON PrintJobs.PartFileItemID = MaxJobs.PartFileItemID RIGHT OUTER JOIN
LabelTemplateMaster ON ProductMaster.LabelTemplateID = LabelTemplateMaster.LabelTemplateID LEFT OUTER JOIN
CustomOptions ON ProductMaster.CustomOptionID = CustomOptions.CustomOptionID LEFT OUTER JOIN
ExpiryRulesMaster ON ProductMaster.ProductExpiryRule = ExpiryRulesMaster.ExpiryRule LEFT OUTER JOIN
[F8Extract].[dbo].[WORDER] ON PrintJobs.WORDERKey = WORDER.WORDERKey LEFT OUTER JOIN
[F8Extract].[dbo].[PART] ON ProductMaster.PartFileItemID = Part.PartFileItemID
WHERE PrintJobs.WORDERKey = @WORDERKey
END
谢谢，
斯泰西
答案 0 :(得分：0)
一种方法是查看TOP和ORDER BY，即
SELECT TOP 1
PrintJobs.WORDERKey,
PrintJobs.JobNumber,
WORDER.U_DateRequired AS DateRequired,
ProductMaster.PartFileItemID,
WORDER.ManufacturingDepartment AS MfgDept,
PrintJobs.Copies AS LabelCopies,
PrintJobs.ExpiryDate AS JobExpiryDate,
PrintJobs.Batch,
PrintJobs.JulianDate AS JobJulianDate,
ProductMaster.Description,
ProductMaster.PackFormat,
ProductMaster.IngDec,
ProductMaster.BarCodeNumber,
ProductMaster.CustomerProductCode,
ProductMaster.CriticalInstruction,
ProductMaster.StorageInstruction,
ProductMaster.MixedCaseTitle,
ProductMaster.MixedCode1,
ProductMaster.MixedCode2,
ProductMaster.MixedCode3,
ProductMaster.MixedCode4,
ProductMaster.MixedDescription1,
ProductMaster.MixedDescription2,
ProductMaster.MixedDescription3,
ProductMaster.MixedDescription4,
ProductMaster.MixedIngDec1,
ProductMaster.MixedIngDec2,
ProductMaster.MixedIngDec3,
ProductMaster.MixedIngDec4,
ProductMaster.CookingInstruction,
ProductMaster.LogoFilename,
ProductMaster.ProductExpiryRule,
ExpiryRulesMaster.GS1_AppID,
ProductMaster.LabelTemplateID,
CASE WHEN ProductMaster.PartFileItemID IS NULL THEN 'N' ELSE 'Y' END AS LabelDefExists,
LabelTemplateMaster.FileName,
CASE WHEN [DateFormat] = 'Default' THEN ExpiryRulesMaster.DateFormatString ELSE [DateFormat] END AS DateFormatString,
ExpiryRulesMaster.DateRounding,
ExpiryRulesMaster.ExcludeXmasNewYear,
PART.ExternalShelfLifeTotalDays,
CustomOptions.Tagline,
CustomOptions.ShortName AS CustShortName,
ExpiryRulesMaster.LabelText AS ExpiryRuleLabelText,
ProductMaster.inner_hDescription,
ProductMaster.inner_vDescription,
ProductMaster.inner_CustCode,
ProductMaster.inner_Storage,
ProductMaster.inner_WarningMsg,
ProductMaster.inner_Dateformat,
ProductMaster.inner_SpecialCode,
ProductMaster.LabelType,
ProductMaster.inner_MicroSuiteCode,
ProductMaster.inner_PackWeight,
ProductMaster.inner_JDateFormat,
ProductMaster.CustomOptionID,
ProductMaster.inner_PrintLogo,
PART.NominalWeight,
ProductMaster.IngDec_html,
ProductMaster.IngDec_Active,
PrintJobs.PrintJobsID,
MaxJobs.MaxJob,
PrintJobs.DateEntered
FROM ProductMaster RIGHT OUTER JOIN
(
SELECT Partfileitemid,
--JobNumber,
MAX(dateentered) MaxJob
FROM PrintJobs
GROUP BY PartFileItemID
)
MaxJobs ON ProductMaster.PartFileItemID = MaxJobs.PartFileItemID RIGHT OUTER JOIN
PrintJobs ON PrintJobs.PartFileItemID = MaxJobs.PartFileItemID RIGHT OUTER JOIN
LabelTemplateMaster ON ProductMaster.LabelTemplateID = LabelTemplateMaster.LabelTemplateID LEFT OUTER JOIN
CustomOptions ON ProductMaster.CustomOptionID = CustomOptions.CustomOptionID LEFT OUTER JOIN
ExpiryRulesMaster ON ProductMaster.ProductExpiryRule = ExpiryRulesMaster.ExpiryRule LEFT OUTER JOIN
[F8Extract].[dbo].[WORDER] ON PrintJobs.WORDERKey = WORDER.WORDERKey LEFT OUTER JOIN
[F8Extract].[dbo].[PART] ON ProductMaster.PartFileItemID = Part.PartFileItemID
WHERE PrintJobs.WORDERKey = @WORDERKey
ORDER BY PrintJobs.Number DESC
注意将PrintJobs.Number更改为任何字段指定时间顺序。