On Mon, Mar 26, 2018 at 1:54 PM, Prashanth Budihal <prashanthb...@gmail.com> wrote: > I have this project(stock market data) where I need many tables(200+) and > each one will receive fresh data inserts periodically(every 5 minutes). I > have gone thru couple of tutorials about sqlalchemy ORM and they all show > how to create a single table and do few inserts. But if I have to create > 200+ tables then should I create/type manually 200+ mapped classes ? Thats > impractical isnt it ? I face same hurdle while doing INSERTS. Can anybody > here give me a hint atleast how to go about this ? Which part of sqlalchemy > addresses this hurdle. I admit I am a newbie to sql and sqlalchemy so please > bear with me if there is already a solution and I havent studied it yet. > Thanks in advance.
Python is a fully dynamic language so if you needed 200 classes given a list of 200 names, you would never have to "type" that manually. However if this is a really simple case then just use core: my_twohundred_names = [ ... names ....] with engine.connect() as conn: for name in my_twohundred_names: t = Table(name, MetaData(), Column('q', Integer), Column('p', Integer), ... ) conn.execute(t.insert(), {"q": 5, "p": 10}) something like that. if these tables have all kinds of different columns you can reflect them: my_twohundred_names = [ ... names ....] with engine.connect() as conn: for name in my_twohundred_names: t = Table(name, MetaData(), autoload_with=conn) conn.execute(t.insert(), {"q": 5, "p": 10}) but you need to know what the columns are that you are inserting. > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > 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 https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- 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 https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.