#------------------------------------------------------------------------------
# rowfactory.py (Section 8.1)
#------------------------------------------------------------------------------

#------------------------------------------------------------------------------
# Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
#------------------------------------------------------------------------------

import collections
import cx_Oracle
import db_config

con = cx_Oracle.connect(db_config.user, db_config.pw, db_config.dsn)

cur = con.cursor()

cur.execute("select deptno, dname from dept")
res = cur.fetchall()

print('Array indexes:')
for row in res:
    print(row[0], "->", row[1])

print('Loop target variables:')
for c1, c2 in res:
    print(c1, "->", c2)

print('Rowfactory:')
cur.execute("select deptno, dname from dept")
cur.rowfactory = collections.namedtuple("MyClass", ["DeptNumber", "DeptName"])

res = cur.fetchall()
for row in res:
    print(row.DeptNumber, "->", row.DeptName)