PLSQLDeveloper安装
⼀、            ORACLE客户端安装
1.      安装路径设置
instantclient_11_2整个⽂件夹复制到要安装的路径下如D:\Program Files\Oracle\，接着设置系统环境变量2.      系统环境变量设置
1)右击桌⾯“计算机”选择“属性”，进⼊控制⾯板
2)控制⾯板，点击⾼级系统设置，进⼊系统属性界⾯
3)系统属性界⾯，⾼级页签，点击环境变量
4）环境变量中新建系统变量
变量名：NLS_LANG
变量值：AMERICAN_AMERICA.ZHS16GBK
变量名：ORACLE_HOME
变量值：D:\Program Files\Oracle\instantclient_11_2\
变量名：TNS_ADMIN
变量值：D:\Program Files\Oracle\instantclient_11_2\network\admin\
⼆、PL/SQL的安装与配置
1.  安装PL/SQL
点击安装pl/sql
2.  破解PL/SQL
点击‘help’⾥⾯的‘register’，输⼊以下⽂件⾥的注册信息，完成注册
PLSQL注册信息
Product Code：4t46t6vydkvsxekkvf3fjnpzy5wbuhphqz
serial Number：601769
password：xs374ca
3.  设置oracle home 和ocilibary
打开pl\sql，点击cancel进⼊
点击⼯具栏tools->preferences，设置oracle home 和ocilibary
oracle home：
D:\Program Files\Oracle\instantclient_11_2
Ocilibary：
D:\Program Files\Oracle\instantclient_11_2\oci.dll
4.      保存登录记录的设置
5.      保存页⾯布局
关闭不需要的窗⼝，点击window>save Layout
6.      修改tnsnames
D:\Program Files\Oracle\instantclient_11_2\network\a(注意，不要直接复制黏贴，有可能会有格式问题导致读取失败)
  　# Sample:
  　#DatabaseName =
  　#  (DESCRIPTION =
  　#    (ADDRESS_LIST =
  　#      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
  　#    )
  　#    (CONNECT_DATA =
  　#      (SERVER = DEDICATED)
  　#      (SERVICE_NAME = ServiceName)
  　#      (INSTANCE_NAME = InstanceName)
  　#    )
  　#  )
  　# Modify the following content to fit your own needs.
  　ORCL_175 =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.175)(PORT = 1521))      )
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = orcl)
      )
    )
  　QS_166DB1 =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = 112.124.18.166)(PORT = 1521))      )
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = db1)
      )
    )
7.      连接数据库
点击钥匙图标
输⼊⽤户名密码，登录plsql配置oracle主目录
Username:adm_sale
Password:adm_sale