Oracle Linux 7.9 install Oracle11g database-4, create a database

Video address: https://edu.51cto.com/center/course/lesson/index?id=220304

Create database

Run dbca in Terminal as the oracle user through vnc

The status that needs to be checked after the database is created

Check monitoring status

Log in as the oracle user to check the monitoring status

Connect to the database

Use the sysdba account to connect to the database in the following two ways

sqlplus "/as sysdba"           #方式1

sqlplus /nolog                     #方式2
conn sys/oracle@trasendb as sysdba;
conn system/oracle@trasendb;

tnsping trasendb

Check the database open mode, instance name and status

select open_mode from v$database;

select instance_name,status from v$instance;

Check the data file

select name from v$datafile;

Check SGA and PGA

show parameter sga;
show parameter pga;

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