oracle instantclient_12_2 installation

download link

http://www.oracle.com/technetwork/database/database-technologies/instant-client/downloads/index.html

Select:
the Instant Client for Linux x86-64

1) Download the following two ZIP package:

• instantclient-basic-linux.x64-12.2.0.1.0.zip
• instantclient-sqlplus-linux.x64-12.2.0.1.0.zip

2) install dependencies:

yum install libaio* -y 

3) uploaded to the server and unzip to the same directory

unzip instantclient-basic-linux.x64-12.2.0.1.0.zip
unzip instantclient-sqlplus-linux.x64-12.2.0.1.0.zip
sudo mv instantclient_12_2 /soft/

 4) Add the environment variable

export ORACLE_HOME=/soft/instantclient_12_2
export LD_LIBRARY_PATH=/soft/instantclient_12_2
export TNS_ADMIN=/soft/instantclient_12_2
export PATH=$PATH:/soft/instantclient_12_2

5) Add tnsnames.ora file

New catalog:

/soft/instantclient_12_2/network/admin

test =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 47.75.108.44)(PORT = 1521))
    )
    (CONNECT_DATA =
    (SERVER = DEDICATED)
      (SERVICE_NAME = tro)))