(1) Download oracle-instantclient rpm as follows:
oracle-instantclient19.3-basic-19.3.0.0.0-1.x86_64.rpm
oracle-instantclient19.3-sqlplus-19.3.0.0.0-1.x86_64.rpm
Download: https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html
(2) Installation rpm package:
rpm -ivh oracle-instantclient19.3-basic-19.3.0.0.0-1.x86_64.rpm
rpm -ivh oracle-instantclient19.3-sqlplus-19.3.0.0.0-1.x86_64.rpm
After installation, oracle default client installed in the / usr / lib / oracle.
(3) setting environment variables and directory
Editing root user's .bash_profile file:
PATH=$PATH:$HOME/bin
export ORACLE_HOME=/usr/lib/oracle/19.3/client64/
export ORACLE_BASE=/usr/lib/oracle/19.3/
export TNS_ADMIN=$ORACLE_HOME/network/admin
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin
export PATH
After compilation to take effect immediately:
source .bash_profile
Create a directory that does not exist:
mkdir -p $ORACLE_HOME/network/admin
(4) Add tns service name
vim $ORACLE_HOME/network/admin/tnsnames.ora
yun_119 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.XX.XX)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
(5) Verify successful
You can also direct database:
