to_char/to_date and VB

Using oracle server 7.3 and VB5/Prof, I try to retrieve a record that one of the columns, CALLDATE, is defined as date.
The SQL statment is:
Set rsinvoice = dbsRemote.OpenRecordset("select PIN_NO,to_char(CALLDATE,'MM/DD/YYYY') from [ALON.INVOICE] order by PIN_NO", dbOpenSnapshot, dbRunSync)

But when executing this statment I gor an error:
3085:undefined function 'to_char' in expression.

My question is why VB doesn't recorgnize this function, and how can I make it recognize the function?

Thanks,
Alon
oak022097Asked:
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xiaodongCommented:
You need to use a flag called dbSQLPassThrough when you open the recordset.  to_char is Oracle-native, and is not part of ODBC specification.
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