the docs for update() are at:

tutorial: http://www.sqlalchemy.org/docs/core/tutorial.html#inserts-and-updates
API: 
http://www.sqlalchemy.org/docs/core/expression_api.html#sqlalchemy.sql.expression.update


On Jan 26, 2011, at 2:14 PM, Josh Stratton wrote:

> I'm currently interfacing with an Oracle db using sqlalchemy without
> any sessions or mappings.  Selects and inserts work great, but I'd
> like to be able to update a row without having to delete and reinsert
> it.
> 
>            # remove the id
>            table.delete(table.c.id == row['id']).execute()
> 
>            # add it back with new value
>            row['name'] = 'now frank'
>            self.conn.execute(table.insert(), row)
> 
> I realize there there's an update function in table, but I'm at a loss
> as to how to use the syntax for it.  I'm just changing one or two
> non-primary-key values.  All the examples I see use the ORM mappings
> with sessions, or use the update to change every field in a column.
> 
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