On Thu, 2007-05-24 at 15:10 -0500, Carl Karsten wrote:
> > There is also Option 3: Use actual parameter passing to build a WHERE ... IN
> > (...) clause:
> >
> > cSql = ("select ktbl2_fk from tbl3 where OtherKey IN ("
> > +",".join("%s" for _ in cList)
> > +")" )
> > cur.execute(cSql, cList)
>
> Don't suppose you know off the top of your head how to code it for
> .paramstyle=named
>
> >>> print cx_Oracle.paramstyle
> named
This doesn't necessarily mean that 'named' is the only style it will
accept. Informix is the only commercial RDBMS I use--I'm odd that
way--so your mileage may vary, but I'd say there's a more than 50%
chance that cx_Oracle will silently accept qmark style:
cSql = ("select ktbl2_fk from tbl3 where OtherKey IN ("
+",".join("?" for _ in cList)
+")" )
cur.execute(cSql, cList)
If that doesn't work and you must use named style, you'll have to build
a dictionary with your values, and the list of placeholders will look
more involved. Something along these lines:
paramnames = [ ":p%d"%i for (i,_) in enumerate(cList) ]
paramdict = dict(zip(paramnames, cList))
cSql = ("select ktbl2_fk from tbl3 where OtherKey IN ("
+",".join(paramnames)
+")" )
cur.execute(cSql, paramdict)
HTH,
--
Carsten Haese
http://informixdb.sourceforge.net
_______________________________________________
DB-SIG maillist - DB-SIG@python.org
http://mail.python.org/mailman/listinfo/db-sig
