To_Char conversion in Access pass through query

I have problem with this To_Chart coversion.
When I run query I got

Run time error '3146'
Odbc call failed
[Oracle][ODBC][Ora]Ora-00936:missing expression

This is Access2003 passThrough query to Oracle9 database.
Apos.Artikelklasse in oracle table is Varchar2(5)
Apos.artnr is Varchar2(25)

Ar.Artklcode in oracle table is Number(5)
Ar.artnr is Varchar2(10)

qryQueryDef.SQL = "SELECT Apos.ARTNR,Apos.ARTIKELKLASSE,Ar.Bezeichnung1 " _
& "FROM " _
& "Main.Aufpos Apos,Main.Art Ar " _
& "WHERE  (Apos.Artikelklasse = To_Char(Ar.Artklcode)(+))And (Apos.artnr = Ar.Artnr(+)) " 

Any Idea.
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Jinesh KamdarCommented:
There is a space missing in the WHERE clause. Try this.
                                                                                           v -------------- added space here
WHERE (Apos.Artikelklasse = To_Char(Ar.Artklcode)(+)) And (Apos.artnr = Ar.Artnr(+))
TarasAuthor Commented:
I corrected it and it is the same.
Jinesh KamdarCommented:
The parentheses were causing a problem. Try this, it worked for me.

& "WHERE Apos.Artikelklasse = To_Char(Ar.Artklcode(+)) And Apos.artnr = Ar.Artnr(+) "
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TarasAuthor Commented:
I found what was wrong.
It shoul be
WHERE (Apos.Artikelklasse = To_Char(Ar.Artklcode(+))) And (Apos.artnr = Ar.Artnr(+))
Jinesh KamdarCommented:
Glad u too found the same issue as i did [see my previous post] :)

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TarasAuthor Commented:
Thanks a lot
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Microsoft Access

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