PL/SQL Developer Initialization errorSQL.Net not properly installed OracleHomeKey: OracleHomeDi. Creating Oracle Homes. To create an Oracle home, follow the steps below. In the File Locations page, enter the Oracle home settings for the installation session under Destination. OracleHomeKey: SOFTWARE ORACLE OracleHomeDir: 原因大概是Oracle10g的安装目录结构变了，需要在PLSQL Developer中重新配置ORACLEHOME and 'OCI Library'的目录。. In other words is this an SQL.Net not properly installed OracleHomeKey OracleHomeDir Dont have any idea where the problem comes from! If a character is stunned but still has not understand.Well so not clear that? Check that memorymaxtarget. SQL Server: Why does COUNT.
PL/SQL Developer
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Initialization error
SQL*Net not properly installed
OracleHomeKey:
OracleHomeDir:
（方法一）下载 ok！
http://download.csdn.net/detail/reginadeng/5857081#comment
（方法二）官方下载
下载32位客户端，配置进navicat中
Oraclehomekey Oraclehomedir
下载地址：http://www.oracle.com/technetwork/topics/winsoft-085727.html
第1步：在上述地址中下载文件：instantclient-basic-nt-11.2.0.3.0.zip
第2步：解压此安装包，并将解压出的文件合并到：D:appDavidproductinstantclient_11_2
第3步：打开Navicat，选择工具→选项→其他→OCI，
设置OCI library为：D:appDavidproductinstantclient_11_2oci.dll
设置SQL *plus为：D:appDavidproduct11.2.0dbhome_1BINsqlplus.exe
点击确定。
第4步：测试成功。
pl/sql> Tools>Preferences>Oracle>Connection> like this. then is ok!!
OracleHomeKey: D:appOracleAdministratorproduct11.2.0
OracleHomeDir:D:appOracleinstantclient-basic-nt-11.2.0.3.0instantclient_11_2oci.dll
D:appAdministratorproduct11.2.0dbhome_1BINoci.dll
D:oracleappAdministratorproduct11.2.0client_1instantclientoci.dll
也可以在pl/sql的安装目录下D:Program Files (x86)PLSQL DeveloperPreferencesAdministratordefault.ini
[Preferences]
CheckConnection=True
SelectedHome=D:appOracleAdministratorproduct11.2.0
OCIFile=D:appOracleAdministratorproduct11.2.0dbhome_1binoci.dll
改成自己在路径。
oracle 配置监听程序
Net Configuration Assistant
system，127.0.0.1:1521/orcl
在64位机器上使用plSQL连接Oracle的问题 SQL Net not properly installed
在64位机器上了64位的oracle客户端。
然后装上PL/SQL Developer，但是连接oracle老报这个错：
Initialization error
SQL*Net not properly installed
OracleHomeKey:
OracleHomeDir:
看网上的说法是到工具-首选项-oracle连接去配置oracle主目录名和oci库的位置。
（Tools-Preferences-Oracle-Connection去配置Oracle Home和OCI library）
配置过后登陆时仍然报错：
Could not load '……/bin/oci.dll'
OCIDLL forced to……
LoadLibrary（……oci.dll） returned 0
解决办法是：在64位的机器上安装32位的Oracle客户端。这样的话便连接成功。
依据：
从安装角度考虑，32bit的平台(操作系统和硬件系统)只支持32bitORACLE的安装；
64bit平台既支持32bitORACLE的安装也支持64位ORACLE的安装；
根据PL/SQL Developer的官方论坛里面的帖子：
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. --这是管理员的回复
PL/SQL Developer is written in Delphi.
The first thing that needs to become available is a 64 bit version of the Delphi IDE.
还有另外一个帖子也提到：
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'
--以下是管理员的回复
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.
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