====== SQL ======

==== Создать пользователя с паролем и дать доступ к базе ====

  CREATE DATABASE IF NOT EXISTS my_db CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
  CREATE USER 'new_user'@'localhost' IDENTIFIED BY 'new_password';
  GRANT ALL ON my_db.* TO 'new_user'@'localhost';
  FLUSH PRIVILEGES;


==== Найти пользователей без профиля ====

  SELECT * FROM `auth_user` 
    WHERE not EXISTS (SELECT * FROM userprofile_userprofile WHERE userprofile_userprofile.user_id=auth_user.id );


  SELECT * FROM `auth_user` 
  WHERE id NOT IN (SELECT user_id FROM userprofile_userprofile)
  ORDER BY `id`  ASC    

==== Удалить пользователей без профиля ====

  DELETE FROM `auth_user` 
    WHERE not EXISTS (SELECT * FROM userprofile_userprofile WHERE userprofile_userprofile.user_id=auth_user.id );

==== Regexp в запросах mariadb ====
  SELECT * FROM `userboard_usersactions` 
  where `dopinfo` REGEXP BINARY '^[А-Яа-яЁё]{8}\ \ \ Email'
  ORDER BY `id`  DESC
  
==== Выборка сообщений start ====
  SELECT text,CONCAT('https://vk.com/id', vkuser) AS vklink FROM `msg_message` 
  LEFT JOIN msg_user ON msg_message.author_id = msg_user.id
  WHERE time > 2024-01-01 AND (text LIKE '%продвижение' OR text LIKE '%сео' OR text LIKE '%директ') 
  INTO OUTFILE '/seo.csv'
  FIELDS TERMINATED BY ';'
  ENCLOSED BY '"'
  LINES TERMINATED BY '\n';