cx_Oracle.DatabaseError: Error while trying to retrieve text for error ORA-01804

环境:

Win10 +pycharm+cx_oracle 都是64位

错误信息:

cx_Oracle.DatabaseError: Error while trying to retrieve text for error ORA-01804

解决步骤:

1. ORACLE_HOME　and PATH already set. pls refer to https://www.cnblogs.com/tingxin/p/12676580.html

2. copy oracle 服务器上ORALCE_HOME/oracore 文件夹到win10 ORACLE_HOME 文件夹.

select value$ "Time Zone Version" from PROPS$ where name='DST_PRIMARY_TT_VERSION';

Time Zone Version
--------------------------------------------------------------------------------
32

 3.此时出现问题

cx_Oracle.DatabaseError: DPI-1072: the Oracle Client library version is unsupported;

 copy 以下oracle client dll to python.exe 目录

D:Program FilesPython37>dir o*.dll
 Volume in drive D is Database
 Volume Serial Number is F220-1E0F

 Directory of D:Program FilesPython37

05/01/2020  02:22 pm           807,424 oci.dll
15/11/2019  06:59 pm           182,272 ocijdbc19.dll
05/01/2020  01:56 pm           612,352 ociw32.dll
05/01/2020  01:42 pm            88,576 oramysql19.dll
21/08/2019  05:35 am         4,762,112 orannzsbb19.dll
05/01/2020  01:10 pm         1,149,952 oraocci19.dll
05/01/2020  01:34 pm         1,163,776 oraocci19d.dll
05/01/2020  02:25 pm       205,559,808 oraociei19.dll
15/11/2019  07:48 pm           288,768 oraons.dll
05/01/2020  02:17 pm           232,448 orasql19.dll
15/11/2019  07:19 pm         1,659,392 orasqlplusic19.dll
              11 File(s)    216,506,880 bytes
               0 Dir(s)  195,699,912,704 bytes free

refer:https://docs.oracle.com/health-sciences/cis/installation-guide/index.htm?toc.htm?213990.htm