Subject Re: [firebird-support] fdb named parameters
Author Helen Borrie
At 10:04 a.m. 24/02/2015, Ernesto Benestante ebenestante@... [firebird-support] wrote:
>Hi, does FDB support named parameters in queries? Other python database
>adapters support specifying a name for the parameters in the SQL string
>and passing a dict to execute(), to bind the parameters to its values.
>Something like this:
>cur.execute('select * from customers where id = %(cid)d', {'cid': 3})
>That does not work with FDB:
>Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "/usr/local/lib/python3.4/dist-packages/fdb/", line
>3352, in execute
> self._ps = PreparedStatement(operation, self, True)
> File "/usr/local/lib/python3.4/dist-packages/fdb/", line
>1985, in __init__
> "Error while preparing SQL statement:")
>fdb.fbcore.DatabaseError: ('Error while preparing SQL statement:\n-
>SQLCODE: -104\n- Dynamic SQL Error\n- SQL error code = -104\n- Token
>unknown - line 1, column 37\n- %', -104, 335544569)
>Is there another way?

The Firebird SQL engine itself does not support named parameters but most (if not all) client layers do provide mechanisms for them. The syntax will be specific to the driver.

Please subscribe to the firebird-python list to inquire about the correct Python syntax to do it. You can subscribe at