On Mar 11, 2013, at 5:19 PM, Russ <russandheat...@gmail.com> wrote: > On Monday, March 11, 2013 4:56:11 PM UTC-4, Arkilic, Arman wrote: > Hi, > I am working on a database design that I am required to use lots of tables > with one-to-many relationship. As a consequence of the design, I need to > insert thousands of entries. I tried session.add(), session.merge, however > none of them is fast enough for me to meet the requirements. I was wondering > if you can suggest me an efficient way through either ORM or ORM+Core. > Thanks! > > I recently did a presentation structured around getting fast bulk inserts > with SQLAlchemy. You may find it useful: > > https://speakerdeck.com/rwarren/a-brief-intro-to-profiling-in-python > > Please note that the focus was on profiling, and not on SQLAlchemy. The > SQLAlchemy example just worked out well (with a contrived step or two) as a > vehicle for showing different profiling steps/gotchas. Since the focus was > on profiling, the example is quite simple (a single user table)... but you > can easily extend on it for your one-to-many tables. > > I also didn't 100% scrub the SQLAlchemy code (I threw this together in a > hurry), so no yelling at me for bad code. :) >
wow that is a great talk, I laughed my ass off and you really got in there, nice job ! > Russ > > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
