SQL developer graphical window to create database (tablespace and user)

1, Start with SYS Link database

2. We use sql Statement to create a tablespace

create  tablespace db_test -- Table space name 
datafile 'D:\oracle\product\11.2.0\dbhome_1\oradata\orcl\test.dbf' -- Physical file   Table space data file storage path 
size 50m  -- Initial value of size 
autoextend on  -- Automatic extension 
next 50m maxsize 20480m  -- Every expansion 50m, The maximum is 20480m
extent management local;

3. Create user

create user c##testdev         -- Create user name testdev, Pay attention to the front c##
  identified by "test1234"     -- Create a password test1234
  default tablespace db_test    -- Table space  db_test
  temporary tablespace TEMP     -- Temporary table space （ default ）
  profile DEFAULT               -- Default permissions （ Now assign ）
  quota unlimited on db_test;      -- This user

3. Give new user permission

grant all privileges to testdev; --  Execute the statement to  testdev  User authorization , here   The   The user can log in 

4. Reconnect with new users , Sign in .