Sqlalchemy sequence postgresql

#!/usr/bin/env python

from sqlalchemy import create_engine, Column, Integer, String, Sequence
from sqlalchemy.ext.declarative import declarative_base

Base = declarative_base()
USER_ID_SEQ = Sequence('user_id_seq')  # define sequence explicitly
class User(Base):
    __tablename__ = 'users'
    # use sequence in column definition, and pass .next_value() as server_default
    id = Column(Integer, USER_ID_SEQ, primary_key=True, server_default=USER_ID_SEQ.next_value())
    name = Column(String(50))
    fullname = Column(String(50))
    password = Column(String(12))

    def __repr__(self):
        return "<User(name='%s', fullname='%s', password='%s')>" % (
                                self.name, self.fullname, self.password)

db_url = 'postgresql://localhost/serial'
engine = create_engine(db_url, echo=True)
Base.metadata.create_all(engine)

Source: stackoverflow.com

Similar codes

1 vote285 views1 answer
Sql select all from one table and one column from another
SQL
3 votes265 views1 answer
MySQL DELETE JOIN
SQL
0 vote278 views1 answer
Get rows from 1 table with other table empty mysql
SQL
2 votes269 views1 answer
Mysql how to store lat,lng
SQL
0 vote286 views1 answer
Default column value in sql same as another column laravel
SQL
0 vote323 views1 answer
What is metadata in sql
SQL
0 vote282 views1 answer
Compare two tables to find unmatched records
SQL
1 vote283 views2 answers
Pad zero sql server
SQL
0 vote294 views1 answer
Sql injection payload list github
SQL
0 vote270 views1 answer
Mysql to get column name in database
SQL