Looking at the source for execute on django-trunk in
django.db.backends.oracle

If you have a param, you will have an arg for the query (type:
string).

http://docs.djangoproject.com/en/dev/topics/db/sql/#executing-custom-sql-directly

... your params should be a list of things to interpolate into the
query string, yes?

http://docs.python.org/library/stdtypes.html#string-formatting

On Apr 23, 3:59 pm, Tim Sawyer <list.dja...@calidris.co.uk> wrote:
> Hello.
>
> This code works fine:
>
>  >>> import cx_Oracle
>  >>> lDsn = cx_Oracle.makedsn(lDatabaseHost, int(lDatabasePort),
> lDatabaseName)
>  >>> lConnectString = "%s/%...@%s" % (lDatabaseUsername,
> lDatabasePassword, lDsn)
>  >>> lConnection = cx_Oracle.connect(lConnectString)
>  >>> cursor = lConnection.cursor()
>  >>> lOutput = cursor.var(cx_Oracle.STRING)
>  >>> cursor.execute("BEGIN :out := 'N'; END;", {'out' : lOutput})
>  >>> print lOutput
> <cx_Oracle.STRING with value 'N'>
>  >>> print lOutput.getvalue()
> N
>
> However, if I change this to get the connection from Django, it all
> falls in a big heap:
>
>  >>> from django.db import connection
>  >>> cursor = connection.cursor()
>  >>> import cx_Oracle
>  >>> lOutput = cursor.var(cx_Oracle.STRIN
>  >>> cursor.execute("BEGIN :out := 'N'; END;", {'out' : lOutput})
> Traceback (most recent call last):
>    File "<console>", line 1, in <module>
>    File "/dev/HEAD/INTERNAL/websites/Wam3\django\db\backends\util.py",
> line 19, in execute
>      return self.cursor.execute(sql, params)
>    File "/web/djangocourse\django\db\backends\oracle\base.py", line 435,
> in execute
>      query = convert_unicode(query % tuple(args), self.charset)
> TypeError: not all arguments converted during string formatting
>
> Can anyone point me in the direction of how I can fix this?
>
> Cheers,
>
> Tim.
>
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