InstantClient压缩包
pl/sql
oracle数据库
下载InstantClient压缩包，请搜索下载至本地，并解压缩，如图
进行安装oracle数据库10g服务端，安装过程省略，默认安装即可然后进行安装plsql
plsql配置InstantClient路径进入plsql点击工具->首选项 出现如图配置界面这里在左侧菜单项早到连接，然后点击，会在右侧出现如图配置界面，在红色箭头标注位置替换InstantClient的解压路径，oracle主目录名：D:\oracle\instantclient_10_2OCI库：D:\oracle\instantclient_10_2\oci.dll如图
配置instantclient在instantclient解压目录下分别新建如下两个文件tnsnames.ora、listener.oralistener.ora编辑内容：LISTENER1 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)) )tnsnames.ora编辑内容:ORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(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) ) )
配置instantclient的环境变量在电脑的系统环境变量下，增加如下环境变量1、NLS_LANG=AMERICAN_AMERICA.ZHS16GBK2、Path添加 D:\oracle\instantclient_10_23、TNS_ADMIND:\oracle\instantclient_10_2
重启plsql 然后发现数据库出现在了plsql的登录界面，如图此时oracle可以用plsql正常使用了
环境变量需配置