How to create users with database authentication in oracle database?

We use the CREATE USER SQL statement to create database users and authenticate for connection.

Example:

D:\app\Admin\virtual\virtual\product\12.2.0\dbhome_1\bin>sqlplus/nolog
 SQL*Plus: Release 12.2.0.1.0 Production on Sat Feb 19 14:44:15 2022
 Copyright (c) 1982, 2016, Oracle.  All rights reserved.
SQL> conn sys/orcl@to_primary as sysdba
Connected.

--- To create user and assign default tablespaces and quota
SQL> create user bar identified by adimesno
  2  default tablespace users
  3  temporary tablespace temp
  4  quota unlimited on users;
 User created.

---To grant create session system privilege
SQL> grant create session to bar;
 Grant succeeded.

---To grant create table privilege
SQL> grant create table to bar;
 Grant succeeded.
SQL>

We can also use the GRANT …  INDENTIFIED BY  SQL statement  to create users.

Example:

SQL> grant create table, create session to aman identified by aman;
 Grant succeeded.
 SQL>

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