不用安裝Oracle Client如何使用PLSQL Developer

1. 下載oracle的客戶端程序包（30M）
只需要在Oracle下載一個叫Instant Client Package的軟件就可以了，這個軟件不需要安裝，只要解壓就可以用了，很方便，就算重裝了系統還是可以用的。
??????下載地址：http://www.oracle.com/technology/software/tech/oci/instantclient/htdocs/winsoft.html
解壓到一個目錄中即可，例如c:\oracleclient

2. 配置操作系統環境變量
NLS_LANG=SIMPLIFIED CHINESE_CHINA.ZHS16GBK
TNS_ADMIN=C:\oracleclient

3. 配置連接Oracle的配置。tnsnames.ora文件到目錄C:\oracleclient。可以從oracle服務器拷貝一個過來。
內容類似：

# 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. 安裝PLSQL Developer


5. 配置PLSQL Developer（第一次可以不用登錄直接進到PLSQL Developer）
Tools --> Preferences--> Connections,
Oracle Home內容為 C:\oracleclient
OCI library內容為?C:\oracleclient\oci.dll

重新啟動PLSQLDeveloper
完畢