forked from oracle/python-cx_Oracle
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathsubclass.py
More file actions
38 lines (28 loc) · 1.24 KB
/
subclass.py
File metadata and controls
38 lines (28 loc) · 1.24 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
#------------------------------------------------------------------------------
# subclass.py (Section 9.2)
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# Copyright 2017, Oracle and/or its affiliates. All rights reserved.
#------------------------------------------------------------------------------
import cx_Oracle
class MyConnection(cx_Oracle.Connection):
def __init__(self):
print("Connecting to database")
return super(MyConnection, self).__init__("pythonhol", "welcome", "localhost/orclpdb")
def cursor(self):
return MyCursor(self)
class MyCursor(cx_Oracle.Cursor):
def execute(self, statement, args):
print("Executing:", statement)
print("Arguments:")
for argIndex, arg in enumerate(args):
print(" Bind", argIndex + 1, "has value", repr(arg))
return super(MyCursor, self).execute(statement, args)
def fetchone(self):
print("Fetchone()")
return super(MyCursor, self).fetchone()
con = MyConnection()
cur = con.cursor()
cur.execute("select count(*) from emp where deptno = :bv", (10,))
count, = cur.fetchone()
print("Number of rows:", count)