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backup_spfile
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backup_spfile
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#!/bin/env python
##################################################################################################
# Name: backup_controlfile #
# Author: Randy Johnson #
# Description: create pfile = {} from spfile; #
# #
# Usage: backup_spfile [options] #
# #
# Options: #
# -h, --help show this help message and exit #
# -f PFILE name of the backup file. #
# --s print SQL query. #
# --v print version info. #
# #
# History: #
# #
# Date Ver. Who Change Description #
# ---------- ---- ---------------- ------------------------------------------------------------- #
# 10/09/2015 1.00 Randy Johnson Initial write. #
# 10/22/2015 1.10 Randy Johnson Minor non-functional changes. #
##################################################################################################
# --------------------------------------
# ---- Import Python Modules -----------
# --------------------------------------
from datetime import datetime
from optparse import OptionParser
from os import environ
from os.path import basename
from os.path import join as pathjoin
from sys import argv
from sys import exit
from sys import version_info
from signal import SIGPIPE
from signal import SIG_DFL
from signal import signal
from Oracle import RunSqlplus
from Oracle import SetOracleEnv
from Oracle import ParseConnectString
from Oracle import PrintError
# --------------------------------------
# ---- Main Program --------------------
# --------------------------------------
if (__name__ == '__main__'):
Cmd = basename(argv[0]).split('.')[0]
CmdDesc = 'Backup spfile to pfile'
Version = '1.10'
VersionDate = 'Thu Oct 22 10:05:37 CDT 2015'
DevState = 'Production'
Banner = CmdDesc + ': Release ' + Version + ' ' + DevState + '. Last updated: ' + VersionDate
Sql = ''
SqlHeader = '/***** ' + CmdDesc.upper() + ' *****/'
ErrChk = False
ArgParser = OptionParser()
InStr = ''
ConnStr = ''
Now = datetime.now()
Timestamp = Now.strftime("%Y%m%d.%H%M%S")
# For handling termination in stdout pipe; ex: when you run: oerrdump | head
signal(SIGPIPE, SIG_DFL)
ArgParser.add_option("-f", dest="Pfile", default='', type=str, help="name of the backup file.")
ArgParser.add_option('--s', dest='Show', action='store_true', default=False, help="print SQL query.")
ArgParser.add_option('--v', dest='ShowVer', action='store_true', default=False, help="print version info.")
# Parse command line arguments
Options, args = ArgParser.parse_args()
Pfile = Options.Pfile
Show = Options.Show
ShowVer = Options.ShowVer
if (ShowVer):
print('\n%s' % Banner)
exit()
if (Pfile == ''):
if(environ['ORACLE_SID'] != ''):
Pfile = pathjoin('/', 'tmp', 'init' + environ['ORACLE_SID'] + '.' + Timestamp + '.ora')
else:
Pfile = pathjoin('/', 'tmp', 'init' + '.' + Timestamp + '.ora')
# Formulate the backup command...
Sql += SqlHeader + "\n"
Sql += "create pfile='" + Pfile + "' from spfile;"
if(Show):
print('\n-----------cut-----------cut-----------cut-----------cut-----------cut-----------')
print(Sql)
print('-----------cut-----------cut-----------cut-----------cut-----------cut-----------')
exit()
# Check/setup the Oracle environment
if (not('ORACLE_SID' in list(environ.keys()))):
print('ORACLE_SID is required.')
exit(1)
else:
# Set the ORACLE_HOME just in case it isn't set already.
if (not('ORACLE_HOME' in list(environ.keys()))):
(OracleSid, OracleHome) = SetOracleEnv(environ['ORACLE_SID'])
# Parse the connect string if any, prompt for username, password if needed.
if (len(args) > 0 and not Show):
InStr = args[0]
ConnStr = ParseConnectString(InStr)
print("\nCreating backup pfile: %s" % Pfile)
# Execute
if (ConnStr != ''):
(Stdout) = RunSqlplus(Sql, ErrChk, ConnStr)
else:
(Stdout) = RunSqlplus(Sql, ErrChk)
Stdout = Stdout.strip()
# Print the report
if (Stdout != ''):
print('\n%s' % Stdout)
exit(0)
# --------------------------------------
# ---- End Main Program ----------------
# --------------------------------------