root>su pgsql
  pgsql>/usr/local/pgsql/bin/psql users_db
  Welcome to psql, the PostgreSQL interactive terminal.

  Type:  \copyright for distribution terms
         \h for help with SQL commands
         \? for help on internal slash commands
         \g or terminate with semicolon to execute query
         \q to quit

  users_db=# SELECT uin,pass,nick,frst,last,email1 FROM register_requests;
    uin    |  pass  | nick  |        frst      |  last      |      email1       
  ---------+--------+-------+------------------+------------+-------------------
  98004698 | 42193F | john  | Семен Гаврилович | Вертолетов | s_vert@mail.khstu.ru 
  98004699 | 237E24 | AlexX | Алексей Иванович | Пупкин     | pupkin@mail.ru  
  (2 rows)

  users_db=# UPDATE register_requests SET uin=100001 WHERE uin=98004699;
  UPDATE 1

  users_db=# SELECT uin,pass,nick,frst,last,email1 FROM register_requests;
    uin    |  pass  | nick  |        frst      |  last      |      email1       
  ---------+--------+-------+------------------+------------+-------------------
  98004698 | 42193F | john  | Семен Гаврилович | Вертолетов | s_vert@mail.khstu.ru 
    100001 | 237E24 | AlexX | Алексей Иванович | Пупкин     | pupkin@mail.ru  
  (2 rows)

  users_db=# INSERT INTO Users_Info_Ext (SELECT * FROM register_requests WHERE uin=100001);
  INSERT 1231098 1
  users_db=# SELECT * FROM Users WHERE uin=100001;      
    uin   |        frst        |  last  | bcst |  pass  
  --------+--------------------+--------+------+--------
   100001 | Алексей Валерьевич | Брюква |    0 | 237E24 
  (1 row)

  users_db=# DELETE FROM register_requests WHERE uin=100001;
  DELETE 1

  users_db=# \q
  pgsql>exit
  root>