標籤：
在PLSQL Developer選擇Tools > Preferences > options > 下的："Oracle Home" and "OCI Library"
Oracle10g裝在d:/oracle/ Oracle Home為d:/oracle/product/10.1.0
OCI Library為d:/oracle/product/10.1.0/Db_1/BIN/oci.dll
配置完以後重新啟動PLSQL Developer，登入成功
配置過後登陸時仍然報錯：
Could not load "……/bin/oci.dll"
OCIDLL forced to……
LoadLibrary（……oci.dll） returned 0
解決辦法是：在64位的機器上安裝32位的Oracle用戶端。這樣的話便串連成功。
依據：
從安裝角度考慮，32bit的平台(作業系統和硬體系統)只支援32bitORACLE的安裝；
64bit平台既支援32bitORACLE的安裝也支援64位ORACLE的安裝；
根據PL/SQL Developer的官方論壇裡面的文章：
quote:
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I am not too fond of installing both 32 and 64 bit oracle clients on same machine - does it work at all?
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Yes, this works fine. --這是管理員的回複
PL/SQL Developer is written in Delphi.
The first thing that needs to become available is a 64 bit version of the Delphi IDE.
還有另外一個文章也提到：
Hi when install in Windows Server 2003 R2 X64.
When I try to connect an account , I have the following message :
Initialization error
Could not load"E:/oracle/product/10.2.0/bin/oci.dll"
--以下是管理員的回複
Is this a 64 bit Oracle Client DLL?
If so, please note that you need to install a 32 bit Oracle Client to use a 32 bit application like PL/SQL Developer.
呼，終於解決了，在客戶的web機上無法用PL/SQL連到linux上的Oracle資料庫
Sql/Plus串連Oracle時候出現sql*net not properly installed 解決辦法
