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ibm_db-set_option_CONNECTION.py
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ibm_db-set_option_CONNECTION.py
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#! /usr/bin/python3
#-------------------------------------------------------------------------------------------------#
# NAME: ibm_db-set_option_CONNECTION.py #
# #
# PURPOSE: This program is designed to illustrate how to use the ibm_db.set_option() API to #
# assign values to some of the connection options available. #
# #
# Additional APIs used: #
# ibm_db.connect() #
# ibm_db.get_option() #
# ibm_db.close() #
# #
# USAGE: Log in as a Db2 database instance user (for example, db2inst1) and issue the #
# following command from a terminal window: #
# #
# ./ibm_db-set_option_CONNECTION.py #
# #
#-------------------------------------------------------------------------------------------------#
# DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY #
# #
# (C) COPYRIGHT International Business Machines Corp. 2018, 2019 All Rights Reserved #
# Licensed Materials - Property of IBM #
# #
# US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP #
# Schedule Contract with IBM Corp. #
# #
# The following source code ("Sample") is owned by International Business Machines Corporation #
# or one of its subsidiaries ("IBM") and is copyrighted and licensed, not sold. You may use, #
# copy, modify, and distribute the Sample in any form without payment to IBM, for the purpose #
# of assisting you in the creation of Python applications using the ibm_db library. #
# #
# The Sample code is provided to you on an "AS IS" basis, without warranty of any kind. IBM #
# HEREBY EXPRESSLY DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT #
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. #
# Some jurisdictions do not allow for the exclusion or limitation of implied warranties, so the #
# above limitations or exclusions may not apply to you. IBM shall not be liable for any damages #
# you suffer as a result of using, copying, modifying or distributing the Sample, even if IBM #
# has been advised of the possibility of such damages. #
#-------------------------------------------------------------------------------------------------#
# Load The Appropriate Python Modules
import sys # Provides Information About Python Interpreter Constants, Functions, & Methods
import ibm_db # Contains The APIs Needed To Work With Db2 Databases
#-------------------------------------------------------------------------------------------------#
# Import The ipynb_exit Class Definition, Attributes, And Methods That Have Been Defined In The #
# File Named "ipynb_exit.py"; This Class Contains The Programming Logic Needed To Allow "exit()" #
# Functionality To Work Without Raising An Error Or Stopping The Kernel If The Application Is #
# Invoked In A Jupyter Notebook #
#-------------------------------------------------------------------------------------------------#
from ipynb_exit import exit
# Define And Initialize The Appropriate Variables
dbName = "SAMPLE"
userID = "db2inst1"
passWord = "Passw0rd"
dbConnection = None
returnCode = False
# Display A Status Message Indicating An Attempt To Establish A Connection To A Db2 Database
# Is About To Be Made
print("\nConnecting to the \'" + dbName + "\' database ... ", end="")
# Construct The String That Will Be Used To Establish A Db2 Database Connection
connString = "ATTACH=FALSE" # Attach To A Database; Not A Server
connString += ";DATABASE=" + dbName # Required To Connect To A Database
connString += ";PROTOCOL=TCPIP"
connString += ";UID=" + userID
connString += ";PWD=" + passWord
# Attempt To Establish A Connection To The Database Specified
try:
dbConnection = ibm_db.connect(connString, '', '')
except Exception:
pass
# If A Db2 Database Connection Could Not Be Established, Display An Error Message And Exit
if dbConnection is None:
print("\nERROR: Unable to connect to the \'" + dbName + "\' database.")
print("Connection string used: " + connString + "\n")
exit(-1)
# Otherwise, Complete The Status Message
else:
print("Done!\n")
# Create A Dictionary That Contains Values For The Connection Options That Can Only Be Set
# After A Database Connection Is Established
connectOptions = {ibm_db.SQL_ATTR_INFO_ACCTSTR : 'RESANDERS@IBM',
ibm_db.SQL_ATTR_INFO_APPLNAME : 'ibm_db-set_option.py',
ibm_db.SQL_ATTR_INFO_USERID : 'db2inst1',
ibm_db.SQL_ATTR_INFO_WRKSTNNAME : 'ibm_UDOO_X86'}
# Attempt To Set The Connection Options Specified
print("Assigning values to four different connection options ... ", end="")
try:
returnCode = ibm_db.set_option(dbConnection, connectOptions, 1)
except Exception:
pass
# If The Connection Options Could Not Be Set, Display An Error Message And Exit
if returnCode is False:
print("\nERROR: Unable to set the connection options specified.\n")
if not dbConnection is None:
ibm_db.close(dbConnection)
exit(-1)
# Otherwise, Complete The Status Message
else:
print("Done!\n")
# Display A Report Header
print("Connection option settings:\n")
print("OPTION SETTING")
print("________________________ ____________________")
# Retrieve And Display The Accounting String That Was Defined For The Client
value = ibm_db.get_option(dbConnection, ibm_db.SQL_ATTR_INFO_ACCTSTR, 1)
print("SQL_ATTR_INFO_ACCTSTR " + value)
# Retrieve And Display The Application Name That Was Defined For The Client
value = ibm_db.get_option(dbConnection, ibm_db.SQL_ATTR_INFO_APPLNAME, 1)
print("SQL_ATTR_INFO_APPLNAME " + value)
# Retrieve And Display The User ID That Was Defined For The Client
value = ibm_db.get_option(dbConnection, ibm_db.SQL_ATTR_INFO_USERID, 1)
print("SQL_ATTR_INFO_USERID " + value)
# Retrieve And Display The Workstation Name That Was Defined For The Client
value = ibm_db.get_option(dbConnection, ibm_db.SQL_ATTR_INFO_WRKSTNNAME, 1)
print("SQL_ATTR_INFO_WRKSTNNAME " + value)
# Add A Blank Line To The End Of The Report
print()
# Attempt To Close The Db2 Database Connection That Was Opened Earlier
if not dbConnection is None:
print("Disconnecting from the \'" + dbName + "\' database ... ", end="")
try:
returnCode = ibm_db.close(dbConnection)
except Exception:
pass
# If The Db2 Server Connection Was Not Closed, Display An Error Message And Exit
if returnCode is False:
print("\nERROR: Unable to disconnect from the " + dbName + " database.")
exit(-1)
# Otherwise, Complete The Status Message
else:
print("Done!\n")
# Return Control To The Operating System
exit()