You are using the wrong quote characters. In Oracle, double quotes are used to define a case sensitive column name, so it is looking for a column called 08/08/1997 not the string. Use single quotes and it will work. However there are numerous other problems with your SQL. I suspect you really want: select DATE_NAI_IND, COD_ETU from VUE_TRAV_EXT_RVM_RES where TRUNC(DATE_NAI_IND)= TO_DATE('08/08/1997', 'dd/mm/yyyy') Neil Smith -----Original Message----- From: Dieter Maurer [mailto:dieter@handshake.de] Sent: 05 February 2002 22:01 To: champier2002 Cc: Zope@zope.org Subject: [OT] Oracle flame (was: Re: [Zope] Field type 'Date' in SQL request) champier2002 writes:

The application has a link with an Oracle database. In the SQL table the field is defined like this : DATE_NAI_IND DATE with NULL

When I try to use this field in a SQL request, for example : select DATE_NAI_IND, COD_ETU from VUE_TRAV_EXT_RVM_RES where TO_CHAR(DATE_NAI_IND,'dd/mm/yy')= "08/08/1997" or DATE_NAI_IND = "08/08/1997"

I always receive the same error : Error, dco2.DatabaseError: (904, 'ORA-00904: Nom de colonne non valide') I like Oracle error messages: they always hide the essential information...

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