Initialize an Oracle database instance using SQL*Plus utility (Linux systems)

Procedure Log on to the operating system as oracle, or switch user to oracle by typing the following command, followed by the oracle password: Copy su - oracle Manually set the Oracle environment by typing one of the following sets of commands: Copy export ORACLE_HOME=Oracle-home-path export ORACLE_SID=tc Start the Oracle SQLPlus utility: Copy $ORACLE_HOME/bin/sqlplus Log on to SQL. At the SQLPLUS prompt, type the following command: Copy connect / as sysdba The following system message is displayed: Copy Connected. At the SQLPLUS prompt, type the following command: Copy startup The following system message is displayed: Copy ORACLE instance started. Total System Global Area 35069936 bytes Fixed Size 69916 bytes Variable Size 30314496 bytes Database Buffers 4505600 bytes Redo Buffers 180224 bytes Database mounted. Database opened. The Oracle database is initialized. Exit the Oracle SQLPlus utility by entering the following at the SQLPLUS prompt: Copy exit