本文实例讲述了Python3.6连接Oracle数据库的方法。分享给大家供大家参考，具体如下：
下载cx_Oracle模块模块：
https://pypi.python.org/pypi/cx_Oracle/5.2.1#downloads
这里下载的是源码进行安装
[root@oracle oracle]# tar xf cx_Oracle-5.2.1.tar.gz[root@oracle oracle]# cd cx_Oracle-5.2.1[root@oracle cx_Oracle-5.2.1]# python setup.py buildTraceback (most recent call last):File "setup.py", line 170, in <module>raise DistutilsSetupError("cannot locate an Oracle software " /distutils.errors.DistutilsSetupError: cannot locate an Oracle software installation 报错解决办法：在root用户的.bash_profile文件中添加oracle_home的环境变量
export ORACLE_HOME=/u01/app/product/11.2.0/dbhome_1PATH=${ORACLE_HOME}/bin:$PATH:$HOME/bin[root@oracle cx_Oracle-5.2.1]# source /root/.bash_profile[root@oracle cx_Oracle-5.2.1]# echo ${ORACLE_HOME}/u01/app/product/11.2.0/dbhome_1 然后继续build：
[root@oracle cx_Oracle-5.2.1]# python setup.py buildrunning buildrunning build_ext
后面输出信息省略
[root@oracle cx_Oracle-5.2.1]# python setup.py installrunning installrunning bdist_egg
后面输出信息省略
按照完成之后，进行验证模块：
>>> import cx_OracleTraceback (most recent call last):File "<stdin>", line 1, in <module>ImportError: libclntsh.so.11.1: cannot open shared object file: No such file or directory
解决办法：在root用户的.bash_profile文件中添加LD_LIBRARY_PATH的环境变量
LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib:/usr/local/libexport LD_LIBRARY_PATH
[root@oracle cx_Oracle-5.2.1]# source /root/.bash_profile[root@oracle cx_Oracle-5.2.1]# python
Python 3.6.1 (default, Jul 13 2017, 14:31:18)[GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linuxType "help", "copyright", "credits" or "license" for more information.>>> import cx_Oracle
#!/usr/bin/python#coding=utf8# import moduleimport cx_Oracle as oracle# connect oracle databasedb = oracle.connect('scott/redhat@192.168.223.138:1521/oracle.test')# create cursorcursor = db.cursor()# execute sqlcursor.execute('select sysdate from dual')# fetch datadata = cursor.fetchone()print('Database time:%s' % data)# close cursor and oraclecursor.close()db.close() [oracle@oracle scripts]$ python connectoracle.pyDatabase time:2017-08-04 10:20:39
#!/usr/bin/python#coding=utf8import cx_Oracle as oracledef oraclesql(cursor): fp = open(r'/home/oracle/scripts/tablespace.sql') fp_sql = fp.read() cursor.execute(fp_sql) data = cursor.fetchall() return dataif __name__ == '__main__': ipaddr = "192.168.223.138" username = "system" password = "redhat" oracle_port = "1521" oracle_service = "oracle.test" try: db = oracle.connect(username+"/"+password+"@"+ipaddr+":"+oracle_port+"/"+oracle_service) # 将异常捕捉，然后e就是抛异常的具体内容 except Exception as e: print(e) else: cursor = db.cursor() data = oraclesql(cursor) for i in data: print(i) cursor.close() db.close()
希望本文所述对大家Python程序设计有所帮助。
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