Oracle client11 and pl/sql12 installation

Initial environment ：
1. Alicloud lightweight application server has been installed Oracle11g
https://blog.csdn.net/testleaf/article/details/111826134
2. Alicloud lightweight application server has been configured Oracle11g
https://blog.csdn.net/testleaf/article/details/109096654
Specific goals ：
1. install Oralce Client11 and PL/SQL12 install
2. Connect

One 、Oracle Client install

Two 、PL/SQL install

3、 ... and 、 Environment variable configuration （ If it already exists, it can not be configured , The path is modified according to your actual situation ）

Path：D:\app\LEAF\product\11.2.0\client_1\bin

Four 、tnsnames.ora file

D:\app\LEAF\product\11.2.0\client_1\network\admin route （ The path is modified according to your actual situation ） Under the new tnsnames.ora file
（HOST and SERVICE_NAME According to their own actual situation ）

testleaf_47.100.40.199 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 47.100.40.199)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = XE)
    )
  ) 

5、 ... and 、 Connect

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This article comes from ：https://blog.csdn.net/testleaf/article/details/111825435