1.環境設置
[root@oracle ~]# cat /etc/redhat-release
CentOS release 6.9 (Final)
[root@oracle ~]# python -V
Python 2.6.6
版本：Oracle 12c
2.前提：安裝cx_Oracle模塊依賴包
由於使用Python連接Oracle，所以需要下載oracle客戶端包
官網：http://www.oracle.com/technetwork/topics/linuxx86-64soft-092277.html?ssSourceSiteId=otncn
oracle-instantclient12.1-basic-12.1.0.2.0-1.x86_64.rpm
oracle-instantclient12.1-devel-12.1.0.2.0-1.x86_64.rpm
oracle-instantclient12.1-sqlplus-12.1.0.2.0-1.x86_64.rpm
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[root@oracle ~]
# rpm - ivh oracle-instantclient12.1-*
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3.設置環境變量
[root@oracle ~]# cat ~/.bash_profile
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export
/usr/lib/oracle/12
.1
/client64/
export
LD_LIBRARY_PATH=
/usr/lib/oracle/12
.1
/client64/lib
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4.安裝cx_Oracle模塊
官網：https://pypi.python.org/pypi/cx_Oracle
cx_Oracle-6.2.1.tar.gz
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[root@oracle ~]
# tar -zxvf cx_Oracle-6.2.1.tar.gz
[root@oracle cx_Oracle-6.2.1]
# python setup.py install
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可能會遇到報錯
error: command 'gcc' failed with exit status 1
解決方法：
yum install python-devel
yum install libevent-devel
5.查看是否可以導入cx_Oracle模塊
[root@oracle ~]# python
Python 2.6.6 (r266:84292, Aug 18 2016, 15:13:37)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cx_Oracle
>>> #無報錯說明成功
6.編寫Python連接oracle數據庫腳本(oracle用戶，因為我這里都是用oracle用戶權限安裝的）
[oracle@oracle ~]$ cat py_oracle.py
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#!/usr/bin/env python
#-*- coding: UTF-8 -*-
import
cx_Oracle
#導入模塊
db=cx_Oracle.connect(
'system/oracle@localhost:1521/ORCL'
)
#連接user/passwd@host:端口/instance
cursor = db.cursor()
#創建游標對象
cursor.execute(
'select sysdate from dual'
)
#執行命令
data = cursor.fetchone()
#返回值
print(
'Database time:%s'
% data) 打印輸出
cursor.close()
#關閉游標對象
db.close()
#關閉數據庫
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7.執行腳本
[oracle@oracle ~]$ python py_oracle.py
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Database
time
:2018-03-20 20:47:59
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