Since plsql developer does not currently have a 64bit version, it is not possible to connect to a 64bit oracle. The configuration process is now recorded.
1. Download instantclient-basic-win32-11.2.0.1.0
2. Unzip instantclient-basic-win32-11.2.0.1.0 and place it under the product in the Oracle installation directory (the placement location is not mandatory, you can place it at will), as follows Figure:
3. Copy the tnsnames.ora file under E: \ app \ Administrator \ product \ 11.2.0 \ dbhome_1 \ NETWORK \ ADMIN to instantclient_11_2.
4. Open PLSQL Developer, select Tools-> perference-> Connection, configure the Oracle Home and OCI Library items as shown in the figure below:
Among them, Oracle Home: E: \ app \ Administrator \ product \ instantclient_11_2
OCI Library: E: \ app \ Administrator \ product \ instantclient_11_2 \ oci.dll
5. Configure system environment variables
Right-click "My Computer"-"Properties"-"Advanced"-"Environment Variables"-"System Environment Variables":
1>. Choose " Path "-Click" Edit "and add" E: \ app \ Administrator \ product \ instantclient_11_2; "to;
2>. Click "New", the variable name is set to "TNS_ADMIN", the variable value is set to "E: \ app \ Administrator \ product \ instantclient_11_2;", click "OK";
3>. Click "New", variable name setting Is "NLS_LANG", the variable value is set to "SIMPLIFIED CHINESE_CHINA.ZHS16GBK", click "OK";
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