mkdir -p /opt/oracle/instantclient_19_19 cd /opt/oracle unzip instantclient-basic-linux.x64-19.8.0.0.0dbru.zip echo '/opt/oracle/instantclient_19_19' > /etc/ld.so.conf.d/oracle.conf ldconfig
sqlplus system@//dbhost:1521/orclpdb
Depending on your needs—from lightweight connectivity to full administrative power—the Oracle 19c Client offers four distinct installation paths: oracle 19c client
Create tnsnames.ora in $TNS_ADMIN :
| Tool | Description | |------|-------------| | sqlplus | SQL command line | | tnsping | Test Oracle Net connectivity | | exp / imp | Legacy import/export | | expdp / impdp | Data Pump (requires DB server) | | sqlldr | SQL*Loader | | lsnrctl | Listener control (limited in client) | oracle 19c client