1.下載對於oracle數據庫對於版本的instantclient_11_2
oracle11g下載地址：https://www.oracle.com/technetwork/topics/winx64soft-089540.html
2.將文件解壓出來D:\Documents\plsqldoc\instantclient_11_2
3.在D:\Documents\plsqldoc\instantclient_11_2下新建tnsnames.ora 文件。路徑D:\Documents\plsqldoc\instantclient_11_2\tnsnames.ora
4.新建 tnsnames.ora 文件里面加入
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# tnsnames.ora Network Configuration File: D:\Documents\plsqldoc\instantclient_11_2\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
ORCL2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = IPHOME )(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)
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5.IPHOME數據庫所在的地址，本機填localhost
6.之后在 計算機——屬性——高級系統設置——高級——環境變量——系統變量，中新建
變量名：TNS_ADMIN
變量值：D:\Documents\plsqldoc\instantclient_11_2
變量值寫填自己 tnsnames.ora 文件所在的路徑
7.修改PLSQL查詢結果亂碼（？？？）
變量名：NLS_LANG
變量值：SIMPLIFIED CHINESE_CHINA.ZHS16GBK
8.系統變量 —— Path中加入D:\Documents\plsqldoc\instantclient_11_2
instantclient_11_2對於自己電腦所在的路徑
9.PLSQL中——工具——首選項——連接
ORCALE中目錄：D:\Documents\plsqldoc\instantclient_11_2
OCI庫：D:\Documents\plsqldoc\instantclient_11_2\oci.dll