不用安装Oracle Client如何使用PLSQL Developer

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1. 下载oracle的客户端程序包（30M）

只需要在
Oracle
下载一个叫
Instant Client Package
的软件就可以了，这个软件不需要安装，只要解压就可以用了，很方便，就算重装了系统还是可以用的。

下载地址：
http://www.oracle.com/technology/software/tech/oci/instantclient/htdocs/winsoft.html

解压到一个目录中即可，例如c:/oracleclient

2. 配置操作系统环境变量

NLS_LANG=SIMPLIFIED CHINESE_CHINA.ZHS16GBK

TNS_ADMIN=C:/oracleclient

3. 配置连接Oracle的配置。tnsnames.ora文件到目录C:/oracleclient。可以从oracle服务器拷贝一个过来。

内容类似：

# tnsnames.ora Network Configuration File: E:/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

ORCLProduct =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = prmpatm1.asiapacific.hpqcorp.net)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcl)

)

)

ORCL122 =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 16.157.133.122)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcl)

)

)

EXTPROC_CONNECTION_DATA =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))

)

(CONNECT_DATA =

(SID = PLSExtProc)

(PRESENTATION = RO)

)

)

4. 安装PLSQL Developer

5. 配置PLSQL Developer（第一次可以不用登录直接进到PLSQL Developer）

Tools --> Preferences--> Connections,

Oracle Home内容为 C:/oracleclient

OCI library内容为 C:/oracleclient/oci.dll

重新启动PLSQLDeveloper

完毕