Sql 续集视点查询错误

我第一次使用SEQUEL视点，我在AcctNo中创建了这个查询。作为派生字段

    SELECT Cat(substr(cat("000",digits(i0nrov.cbi0rep)),length(cat("000",digits(i0nrov.cbi0rep)))-2,3),substr(cat("000000000",digits(i0cnbr.cbi0rep)),length(cat("000000000",digits(i0cnbr.cbi0rep)))-8,9))NAME(Acctno) COLHDG("Accnt Number"),
                    i0cnbr.cbi0rep NAME(PreAccNo) COLHDG("Pre Accnt Num" "Number"),
                    i0cnbr.cbi0repres NAME(PostAccNo) COLHDG("Post Accnt Num" "Number"), 
                    SUM(i0a01) NAME(PreARBal) COLHDG(" Pre A/R Bal ") EDTCDE(L), SUM(i0a01) NAME(PostARBal) COLHDG("Post A/R Bal") EDTCDE(L)
         FROM           bakbosfile/cbi0rep,auditsql/xrfcmpfres,auditsql/cbi0repres
         INNER JOIN     Acctno=cxgcus.xrfcmpfres and cxcnbr.xrfcmpfres=i0cnbr.cbi0repres
         GROUP BY   Acctno,PreAccNo,PostAccNo
         HAVING         SUM(I0A01.cbi0rep)<>SUM(I0A01.cbi0repres)
         UNION ALL 
    SELECT          Cat(substr(cat("000",digits(i0nrov.cbi0rep)),length(cat("000",digits(i0nrov.cbi0rep)))-2,3),substr(cat("000000000",digits(i0cnbr.cbi0rep)),length(cat("000000000",digits(i0cnbr.cbi0rep)))-8,9))NAME(Acctno) COLHDG("Accnt Number"),
                    i0cnbr.cbi0rep NAME(PreAccNo) COLHDG("Pre Accnt Num" "Number"), 
                    i0cnbr.cbi0repbus NAME(PostAccNo) COLHDG("Post Accnt Num" "Number"), 
                    SUM(i0a01) NAME(PreARBal) COLHDG(" Pre A/R Bal ") EDTCDE(L), SUM(i0a01) NAME(PostARBal) COLHDG("Post A/R Bal") EDTCDE(L)
         FROM           bakbosfile/cbi0rep,auditsql/xrfcmpfbus,auditsql/cbi0repbus
         INNER JOIN     Acctno=cxgcus.xrfcmpfbus and cxcnbr.xrfcmpfbus=i0cnbr.cbi0repbus
         GROUP BY   Acctno,PreAccNo,PostAccNo
         HAVING         SUM(I0A01.cbi0rep)<>SUM(I0A01.cbi0repbus)

请帮忙！我得到以下错误：

您好，巴克，谢谢您的回复，但它无法识别声明中的2 JOIN，因此我已将查询更改为：

但是得到错误：

---

如果这是针对DB2 for i的，典型的语法是：

SELECT Cat(substr(cat("000",digits(i0nrov.cbi0rep)),length(cat("000",digits(i0nrov.cbi0rep)))-2,3),substr(cat("000000000",digits(i0cnbr.cbi0rep)),length(cat 
                ("000000000",digits(i0cnbr.cbi0rep)))-8,9)) as acctno, ...
FROM bakbosfile/cbi0rep 
  JOIN auditsql/xrfcmpfres on Cat(substr(cat("000",digits(i0nrov.cbi0rep)),length(cat("000",digits(i0nrov.cbi0rep)))-2,3),substr(cat("000000000",digits(i0cnbr.cbi0rep)),length(cat 
                ("000000000",digits(i0cnbr.cbi0rep)))-8,9))=cxgcus.xrfcmpfres 
  JOIN auditsql/cbi0repres on cxcnbr.xrfcmpfres=i0cnbr.cbi0repres

---

IBM文档可在中找到。您没有提到要连接到哪个版本的IBM i，所以。

您使用的是什么DBMS？这不是标准语法，或者至少没有我能识别的语法。MySQL和DB2不是很常见的组合？我有同样的问题。我不确定它在后端使用的是哪个数据库。IBM-AS400工具中的SEQUEL视点，因此我假设它是DB2数据库。SEQUEL viewpoint是一个创建查询的工具向导。请将内部联接替换为WHERE，然后再试一次。我不熟悉db2 sql语法，但在我看来，您尝试混合使用ANSI-89和ANSI-92 sql标准。@Prat14您刚才尝试过用WHERE子句替换内部联接吗？我认为你应该能够在你最初的询问中回答这个问题。

SELECT Cat(substr(cat("000",digits(i0nrov.cbi0rep)),length(cat("000",digits(i0nrov.cbi0rep)))-2,3),substr(cat("000000000",digits(i0cnbr.cbi0rep)),length(cat 
                ("000000000",digits(i0cnbr.cbi0rep)))-8,9)) as acctno, ...
FROM bakbosfile/cbi0rep 
  JOIN auditsql/xrfcmpfres on Cat(substr(cat("000",digits(i0nrov.cbi0rep)),length(cat("000",digits(i0nrov.cbi0rep)))-2,3),substr(cat("000000000",digits(i0cnbr.cbi0rep)),length(cat 
                ("000000000",digits(i0cnbr.cbi0rep)))-8,9))=cxgcus.xrfcmpfres 
  JOIN auditsql/cbi0repres on cxcnbr.xrfcmpfres=i0cnbr.cbi0repres