Python源码安装cx_Oracle

-basic-11.2.0.4.0-1.x86_64.rpm oracle-instantclient11.2-jdbc-11.2.0.4.0-1.x86_64.rpm oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm oracle-instantclient11.2-odbc-11.2.0.4.0-1.x86_64.rpm oracle-instantclient11.2-tools-11.2.0.4.0-1.x86_64.rpm

软件包都下载完后，我们开始来安装。

 二、源码安装

1、Oracle_client端安装：

# rpm -ivh oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm  oracle-instantclient11.2-jdbc-11.2.0.4.0-1.x86_64.rpm  oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm  oracle-instantclient11.2-odbc-11.2.0.4.0-1.x86_64.rpm  oracle-instantclient11.2-tools-11.2.0.4.0-1.x86_64.rpm
# echo /usr/lib/oracle/11.2/client64/lib/ >> /etc/ld.so.conf
# ldconfig

如果不进行ldconfig配置，在运行cx_Oracle时会报以下错误：

libclntsh.so.11.1: cannot open shared object file: No such file or directory

2、设置相应用户的环境变量：

在这里需要说明下，你使用哪个帐户装cx_Oracle就需要配置哪个帐户的环境变量，以下已root帐户为例；

如果不配置环境变量、或环境变量配置不正确，在安装cx_Oracle时，会报各种错误，比如说：

oci.h: No such file or directory
#vi ~/.bashrc
export TNS_ADMIN="/usr/lib/oracle"
export ORACLE_HOME="/usr/lib/oracle/11.2/client64"
export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${ORACLE_HOME}/lib"
export PATH="${PATH}:${ORACLE_HOME}"
#source ~/.bashrc

3、源码安装

#tar -zxvf cx_Oracle-5.1.2.tar.gz
#cd cx_Oracle-5.1.2
#python setup.py install

4、安装成功后相应检查

[root@HAProxy01 Scripts]# python
Python 3.3.0 (default, Sep 14 2017, 14:53:20) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cx_Oracle
>>>

三、脚本实例：

#!/usr/bin/python  
# -*- coding: UTF-8 -*-  

import cx_Oracle as db
import os
os.environ[‘NLS_LANG‘] = ‘SIMPLIFIED CHINESE_CHINA.UTF8‘

def queryOracle(sql):
    username = "US_ORDER"      #用户名
    passwd = "******"          #用户密码
    host = "192.168.1.203"     #服务器IP
    port = "1521"              #oracle端口
    sid = "ORCL"               #oracle的
    dsn = db.makedsn(host, port, sid)
    con = db.connect(username, passwd, dsn)
    cur = con.cursor()
    cur.execute(sql)
    result  = cur.fetchall()
    cur.close()
    con.close()
    return result

if __name__=="__main__":
    sql = "select sysdate from dual"    #需要执行的SQL
    result = queryOracle(sql)
    print(result)

执行结果：

[root@HAProxy01 Scripts]# ./check_oracle_tables.py
[(datetime.datetime(2017, 9, 15, 12, 1, 51),)] 

 

Python源码安装cx_Oracle

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