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#------------------------------------------------------------------------------
# Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
#
# Portions Copyright 2007-2015, Anthony Tuininga. All rights reserved.
#
# Portions Copyright 2001-2007, Computronix (Canada) Ltd., Edmonton, Alberta,
# Canada. All rights reserved.
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# rows_as_instance.py
# Returns rows as instances instead of tuples. See the ceDatabase.Row class
# in the cx_PyGenLib project (http://cx-pygenlib.sourceforge.net) for a more
# advanced example.
#
# This script requires cx_Oracle 4.3 and higher.
#------------------------------------------------------------------------------
import cx_Oracle as oracledb
import sample_env
class Test:
def __init__(self, a, b, c):
self.a = a
self.b = b
self.c = c
connection = oracledb.connect(sample_env.get_main_connect_string())
cursor = connection.cursor()
# change this to False if you want to create the table yourself using SQL*Plus
# and then populate it with the data of your choice
if True:
cursor.execute("""
select count(*)
from user_tables
where table_name = 'TESTINSTANCES'""")
count, = cursor.fetchone()
if count:
cursor.execute("drop table TestInstances")
cursor.execute("""
create table TestInstances (
a varchar2(60) not null,
b number(9) not null,
c date not null
)""")
cursor.execute("insert into TestInstances values ('First', 5, sysdate)")
cursor.execute("insert into TestInstances values ('Second', 25, sysdate)")
connection.commit()
# retrieve the data and display it
cursor.execute("select * from TestInstances")
cursor.rowfactory = Test
print("Rows:")
for row in cursor:
print("a = %s, b = %s, c = %s" % (row.a, row.b, row.c))
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