ORA-00933：SQL命令未正确结束ORA-06512：

Question

什么是错， 我得到这个错误

OLE DB provider "OraOLEDB.Oracle" for linked server "hades" returned message "ORA-00933: SQL command not properly ended 
ORA-06512: at "SAAP.EDI", line 1416". 
OLE DB provider "OraOLEDB.Oracle" for linked server "hades" returned message "ORA-00933: SQL command not properly ended 
ORA-06512: at "SAAP.EDI", line 1416". 
Msg 7320, Level 16, State 2, Line 2 
Cannot execute the query "select * from table(edi.ftCustomerCatalog('010','145','000164'))" against OLE DB provider "OraOLEDB.Oracle" for linked server "hades". 

代码：

function ftCustomerCatalog(comno varchar2,cpls varchar2, cuno varchar2) return tblCustomerCatalog pipelined 
is 
    c sys_refCursor; 
    r recCustomerCatalog; 
    sq varchar2(3000); 
begin 
    sq:='select 
     a.comno 
     ,a.t$cpls 
     ,coalesce(a.t$cuno,b.t$cuno) as t$cuno 
    ,a.t$cpgs,a.t$item 
     ,a.t$Upcd 
     ,a.t$dsca 
     ,a.t$wght 
     ,a.t$ship 
     ,coalesce(b.t$stdt,c.t$stdt,d.t$stdt,e.t$stdt,f.t$stdt) as T$STDT 
     ,coalesce(b.t$tdat,c.t$tdat,d.t$tdat,e.t$tdat,f.t$tdat) as t$tdat 
     ,coalesce(b.t$qanp,c.t$qanp,d.t$qanp,e.t$qanp,f.t$qanp) as t$qanp 
     ,a.t$pric 
     ,coalesce(b.t$disc,c.t$disc,d.t$disc,e.t$disc,f.t$disc) as t$disc 
     ,coalesce(b.source,c.source,d.source,e.source,f.source) as Source 
     from table(edi.ftAllPlCatalogs(:comno,cpls)) where t$cuno=:cuno a 
     left join table(edi.ft30ciDiscounts(:comno,:cpls,:cuno)) b on a.t$item=b.T$item and a.t$cuno=b.t$cuno 
     Left Join table(edi.ft31CPGDiscounts(:comno,:cpls,:cuno)) c on a.t$cpgs=c.t$cpgs 
     left Join table(edi.ft31Cdiscounts (:comno,:cpls,:cuno)) d on d.t$cpgs is null 
     left join table(edi.ft33plpgDiscounts(:comno,:cpls)) e on d.t$disc is null and a.t$cpgs=e.t$cpgs 
     left join table(edi.ft33PlDiscount(:comno,:cpls)) f on e.t$disc is null 
     Order by A.T$CPGS, a.t$item;'; 
    Open c for SQ using 
     comno,cpls,cuno 
     ,comno,cpls,cuno 
     ,comno,cpls,cuno 
     ,comno,cpls,cuno 
     ,comno,cpls 
     ,comno,cpls; 
    LOOP 
    fetch c into r; 
    exit when c%notfound; 
    pipe row(r); 
    END LOOP; 
    close c; 
end; 

Answer 1

我不认为语法

t$stdt=coalesce(b.t$stdt,c.t$stdt,d.t$stdt,e.t$stdt,f.t$stdt)

是Oracle有效。

假设的意义是为表达提供了一个别名，我相信甲骨文相当于将是：

coalesce(b.t$stdt,c.t$stdt,d.t$stdt,e.t$stdt,f.t$stdt) AS stdt

（AS关键字开始可选）