1:
Use Oracle users to log in to $ SQLPLUS "/ as sysdba" SQL> Startup .... Database Open SQL> EXIT $ lsnrctl start ... 2:
Set the environment variable oracle_home and oracle_sid Head Start infra: $ INFRA_HOME / bin / lsnrctl start $ INFRA_HOME / bin / sqlplus / nolog conn sys as sysdba startup $ INFRA_HOME / bin / emctl start iasconsole $ INFRA_HOME / opmn / bin / opmnctl startall again in play Mid-tier $ mid_home / bin / emctl start osconsole $ mid_home / opmn / bin / opmnctl startALL database is started normally