Linux。连接到 Oracle。 cx_Oracle.DatabaseError：DPI-1047 找不到 64 位 Oracle 客户端库：“libclntsh.so

Question

我有错误“cx_Oracle.DatabaseError: DPI-1047: Cannot locate a 64-bit Oracle Client library:”libclntsh.so: cannot open shared object file: No such file or directory”。请参阅 https://oracle.github.io/odpi/doc/installation.html#linux 寻求帮助”

我看到了https://oracle.github.io/odpi/doc/installation.html#oracle-instant-client-zip 和How to fix: cx_Oracle.DatabaseError: DPI-1047: Cannot locate a 64-bit Oracle Client library - Python

我一直在 Windows 上工作，只在 Linux 系统上学习。我需要这个问题的帮助。从 python 连接到 Oracle：

import cx_Oracle
con = cx_Oracle.connect('<USER>/<PASSWORD>@<HOST>:<PORT>/<SID>')

我从未从 Linux 连接过。这是第一次。

user@postgresql:~/opt$ cd oracle
user@postgresql:~/opt/oracle$ unzip instantclient-basic-linux.x64-12.2.0.1.0.zip
Archive:  instantclient-basic-linux.x64-12.2.0.1.0.zip
inflating: instantclient_12_2/adrci  
inflating: instantclient_12_2/BASIC_README  
inflating: instantclient_12_2/genezi  
inflating: instantclient_12_2/libclntshcore.so.12.1  
inflating: instantclient_12_2/libclntsh.so.12.1  
inflating: instantclient_12_2/libipc1.so  
inflating: instantclient_12_2/libmql1.so  
inflating: instantclient_12_2/libnnz12.so  
inflating: instantclient_12_2/libocci.so.12.1  
inflating: instantclient_12_2/libociei.so  
inflating: instantclient_12_2/libocijdbc12.so  
inflating: instantclient_12_2/libons.so  
inflating: instantclient_12_2/liboramysql12.so  
inflating: instantclient_12_2/ojdbc8.jar  
inflating: instantclient_12_2/uidrvci  
inflating: instantclient_12_2/xstreams.jar
user@postgresql:~$ sudo apt install libaio1
user@postgresql:/etc/ld.so.conf.d$ sudo nano oracle-instantclient.conf
user@postgresql:/etc/ld.so.conf.d$ sudo ldconfig
user@postgresql:/etc/ld.so.conf.d$ sudo export 
LD_LIBRARY_PATH=/opt/oracle/instantclient_12_2:$LD_LIBRARY_PATH

Linux

user@postgresql:~$ cat /proc/version
Linux version 5.3.0-46-generic (buildd@lgw01-amd64-003) (gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2)) #38-Ubuntu SMP Fri Mar 27 17:37:05 UTC 2020

Answer 1

问题解决了。也许这会很糟糕： 下载 rpm(oracle-instantclient12.2-basic, oracle-instantclient12.2-devel, oracle-instantclient12.2-devel)。

当然，只需要 oracle-instantclient12.2

sudo apt-get install oracle-instantclient12.2-basic-12.2.0.*

只需添加到 PATH：

user@postgresql:~$export LD_LIBRARY_PATH=/usr/lib/oracle/12.1/client64/lib/${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
user@postgresql:~$sudo ldconfig
user@postgresql:~$ sudo nano  /etc/profile.d/oracle.sh && sudo chmod o+r /etc/profile.d/oracle.sh
export PATH=$PATH:/usr/lib/oracle/12.2/client64/bin

Answer 2

对于 WSL Ubuntu

1. 你将从https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html下载instantclient-basic 和instantclient-sqlplus for linux 的zip 版本。
2. 创建一个名为 /opt/oracle 的文件夹

sudo mkdir -p /opt/oracle
cd /opt/oracle/

1. 现在安装 zip 和 libaio1

apt-get install zip libaio1
cd /opt/oracle/

4. 将 Instantclient basic 和 sqlplus 版本解压到创建的 oracle 文件夹中。

unzip /location/to/your/download/instantclient-basic-linux.x64-12.2.0.1.0.zip
unzip /location/to/your/download/instantclient-sqlplus-linux.x64-12.2.0.1.0.zip

5. 将目录更改为 Instantclient_12_2

cd instantclient_12_2/

6. 运行以下命令

ln -s libclntsh.so.12.1 libclntsh.so
ln -s libocci.so.12.1 libocci.so

1. 编辑 .bashrc 文件以设置 oracle home。

sudo nano $HOME/.bashrc

8. 将以下行添加到 .bashrc 的末尾

# set oracle home at the end of the file
export ORACLE_HOME=/opt/oracle/instantclient_12_2
export LD_LIBRARY_PATH=$ORACLE_HOME:$LD_LIBRARY_PATH
export PATH=$ORACLE_HOME:$PATH

9. 和

source $HOME/.bashrc

10. 最后，安装 cx_Oracle