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python Programming Glossary: sqlalchemy.ext.declarative

Why is SQLAlchemy insert with sqlite 25 times slower than using sqlite3 directly?

http://stackoverflow.com/questions/11769366/why-is-sqlalchemy-insert-with-sqlite-25-times-slower-than-using-sqlite3-directly

100000 records 0.40 secs import time import sqlite3 from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import Column Integer.. 0.595796823502 sec script import time import sqlite3 from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import Column Integer..

Should I create mapper objects or use the declarative syntax in SQLAlchemy?

http://stackoverflow.com/questions/1453219/should-i-create-mapper-objects-or-use-the-declarative-syntax-in-sqlalchemy

# lt Mapper at 0x... User gt Declarative syntax from sqlalchemy.ext.declarative import declarative_base Base declarative_base class User Base..

Convert sqlalchemy row object to python dict

http://stackoverflow.com/questions/1958219/convert-sqlalchemy-row-object-to-python-dict

not iterable import sqlalchemy from sqlalchemy import from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessionmaker..

Is it possible to store Python class objects in SQLite?

http://stackoverflow.com/questions/2047814/is-it-possible-to-store-python-class-objects-in-sqlite

create_engine from sqlalchemy.orm import sessionmaker from sqlalchemy.ext.declarative import declarative_base from random import choice from string..

Dynamic Class Creation in SQLAlchemy

http://stackoverflow.com/questions/2768607/dynamic-class-creation-in-sqlalchemy

generate them dynamically taking something like this from sqlalchemy.ext.declarative import declarative_base Base declarative_base stored stored..

Creating self-referential tables with polymorphism in SQLALchemy

http://stackoverflow.com/questions/2863336/creating-self-referential-tables-with-polymorphism-in-sqlalchemy

DateTime from sqlalchemy.orm import relation backref from sqlalchemy.ext.declarative import declarative_base Base declarative_base class Entity Base..

sqlachemy: cascade delete

http://stackoverflow.com/questions/5033547/sqlachemy-cascade-delete

create_engine from sqlalchemy.orm import sessionmaker from sqlalchemy.ext.declarative import declarative_base Base declarative_base class Parent Base..

Reusing SQLAlchemy models across projects

http://stackoverflow.com/questions/5807694/reusing-sqlalchemy-models-across-projects

from sqlalchemy import Column Integer String Unicode from sqlalchemy.ext.declarative import declarative_base Base declarative_base class Category.. from sqlalchemy.schema import UniqueConstraint from sqlalchemy.ext.declarative import declared_attr class MessageMixIn object ttime Column..

SQLAlchemy Obtain Primary Key With Autoincrement Before Commit

http://stackoverflow.com/questions/620610/sqlalchemy-obtain-primary-key-with-autoincrement-before-commit

import from sqlalchemy.databases.mysql import import sqlalchemy.ext.declarative Base sqlalchemy.ext.declarative.declarative_base class User.. import import sqlalchemy.ext.declarative Base sqlalchemy.ext.declarative.declarative_base class User Base __tablename__ 'user' user_id..

SQLAlchemy classes across files

http://stackoverflow.com/questions/7478403/sqlalchemy-classes-across-files

like this from sqlalchemy import create_engine from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import relationship.. imports A B and C Break the cyclic import. base.py from sqlalchemy.ext.declarative import declarative_base Base declarative_base a.py from sqlalchemy..

How to integrate SQLAlchemy and a subclassed Numpy.ndarray smoothly and in a pythonic way?

http://stackoverflow.com/questions/8940802/how-to-integrate-sqlalchemy-and-a-subclassed-numpy-ndarray-smoothly-and-in-a-pyt

import relationship scoped_session sessionmaker from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.types import TypeDecorator.. import relationship scoped_session sessionmaker from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.types import TypeDecorator..