Teradata 使用 Top 10 和 Distinct

Question

我收到一条错误消息，提示我无法将 Top 10 与 distinct 一起使用我想知道是否有任何方法可以让我的查询在这种方式下工作。这就是错误所说的。

[Teradata Database] [6916] TOP N 语法错误：DISTINCT 选项不支持 Top N 选项。

查询如下：谢谢。

 Select Distinct TOP 10   t1.Adjustment_ID, t1.OfficeNum, t1.InvoiceNum, t1.PatientNum,
t1.CurrentStatus, t1.AdjustmentTotal, t1.SubmittedOn, t1.UserSubmitted,
t1.Invoice_Type, t1.Pat_First_Name, t1.Pat_Last_Name,t2.Reason_Code FROM App_UnityAdj_AdjInfo_Tbl t1
Left Join RCM_WORK_PRD.App_UnityAdj_AdjRecord_Tbl t2 
On t1.Adjustment_ID = t2.Adjustment_ID
Where t1.UserSubmitted = 'Name' AND (t1.CurrentStatus = 'Pending' OR t1.CurrentStatus = 'Deny')

Answer 1

你想做什么？ SELECT 中有不在 GROUP BY 中的列。你也有 TOP 而没有 ORDER BY，这很可疑。

一个简单的方法是将所有 SELECT 列移动到 GROUP BY:

select TOP 10  t1.Adjustment_ID, t1.OfficeNum, t1.InvoiceNum, t1.PatientNum,
       t1.CurrentStatus, t1.AdjustmentTotal, t1.SubmittedOn, t1.UserSubmitted,
       t1.Invoice_Type, t1.Pat_First_Name, t1.Pat_Last_Name, t2.Reason_Code
from App_UnityAdj_AdjInfo_Tbl t1 Left Join  
     RCM_WORK_PRD.App_UnityAdj_AdjRecord_Tbl t2 
     On t1.Adjustment_ID = t2.Adjustment_ID
where t1.UserSubmitted = 'Name' AND
      t1.CurrentStatus in ('Pending', 'Deny')
group by t1.Adjustment_ID, t1.OfficeNum, t1.InvoiceNum, t1.PatientNum,
         t1.CurrentStatus, t1.AdjustmentTotal, t1.SubmittedOn, t1.UserSubmitted,
         t1.Invoice_Type, t1.Pat_First_Name, t1.Pat_Last_Name,t2.Reason_Code;

Answer 2

我想我明白了，万一有人想知道它是样本 10

Select Distinct t1.Adjustment_ID, t1.OfficeNum, t1.InvoiceNum, t1.PatientNum,
t1.CurrentStatus, t1.AdjustmentTotal, t1.SubmittedOn, t1.UserSubmitted,
t1.Invoice_Type, t1.Pat_First_Name, t1.Pat_Last_Name,t2.Reason_Code FROM    App_UnityAdj_AdjInfo_Tbl t1
Left Join RCM_WORK_PRD.App_UnityAdj_AdjRecord_Tbl t2 
On t1.Adjustment_ID = t2.Adjustment_ID
Where t1.AssignedTo IS null AND (t1.CurrentStatus = 'Pending')
sample 10

Teradata 使用 Top 10 和 Distinct

Teradata using Top 10 and Distinct

sql

teradata