Method 1: Download the oracle installation package 32
Second way: to modify configuration
step:
1. Download an oracle client instantclient_11_2, here is my version 11
2. Open the PL / SQL, Tools - Preferences - connection, enter the instantclient_11_2 directory and file address oci.dll
NETWORK copy of the directory 64 at the directory 3. installation oracle
4. Open instantclient_11_2, file copy and paste
5. Add System Variables
TNS_ADMIN: oracle root directory \ product \ 11.2.0 \ dbhome_1 \ NETWORK \ ADMIN
For example: D: \ app \ Administrator \ product \ 11.2.0 \ dbhome_1 \ NETWORK \ ADMIN
NLS_LANG：SIMPLIFIED CHINESE_CHINA.ZHS16GBK
