PLSQL Developer Connection to Oracle11g 64-bit Database Configuration

PLSQL Developer connects to Oracle11g 64-bit database configuration details recently changed to a 64-bit computer, so oracle database also changed to 64-bit, but the problem also arises, since plsql developer does not have a 64-bit version, it cannot connect to 64-bit oracle. After some hard work, it finally successfully connects to the database and now records the configuration process for viewing. 1. Download instantclient-basic-win32-11.2.0.1.0 (oracle Official Website: http://www.oracle.com/technetwork/topics/winsoft-085727.html , 2: http://download.csdn.net/detail/czw2010/5732241 ) 2. unzip the 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, can be placed at will), such as: 3. copy tnsnames under E: \ app \ Administrator \ product \ 11.2.0 \ dbhome_1 \ NETWORK \ ADMIN. ora file to instantclient_11_2. 4. open PLSQL Developer, select Tools> perference> Connection, and configure the Oracle Home and OCI Library items, as shown in: 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>. select "Path"-click "edit" to add "E: \ app \ Administrator \ product \ instantclient_11_2;"; 2>. click "new", set the variable name to "TNS_ADMIN", and set the variable value to "E: \ app \ Administrator \ product \ instantclient_11_2;". Click "OK"; 3>. click "new", set the variable name to "NLS_LANG", set the variable value to "SIMPLIFIED CHINESE_CHINA.ZHS16GBK", and click "OK ";