SqlAlchemy: export table to new database

Question

Only recently started using python, and I like it! However, I am stuck with SqlAlchemy.

I am trying to write a script that reads an MS SQL database, query a table (a

Answer 1

Test this:

def copy_table(src_session, src_class, dst_session, dst_class):
    r=src_session.query(src_class).all()
    for i in r:
        j=dst_class()
        [setattr(j, col.name, getattr(i, col.name)) for col in i.__table__.columns]
        dst_session.add(j)

se1=db1.Session()
se2=db2.Session()
copy_table(se1, db1.Book, se2, db2.Book)
se2.commit()

Answer 2

See Creating and Dropping Database Tables:

Creating … individual tables can be done via the create() … method of Table.

For reading the source structure, see Reflecting Database Objects:

A Table object can be instructed to load information about itself from the corresponding database schema object already existing within the database.
[…]
The reflection system can also reflect views.