text: DELETE FROM oauth_client_details;
  
  INSERT INTO user (username, email, password, activated)
  SELECT * FROM (SELECT 'admin', 'admin@admin.com', '$2a$10$r0RFDmpneBVryx.ihHK9gu6FFJQi4nTxQUqzdSTvrPpaKZMxigqpy', true) AS tmp
  WHERE NOT EXISTS (
      SELECT username FROM user WHERE username = 'admin'
  ) LIMIT 1;
  
  INSERT INTO authority (name)
  SELECT * FROM (SELECT 'ROLE_USER') AS tmp
  WHERE NOT EXISTS (
      SELECT name FROM authority WHERE name = 'ROLE_USER'
  ) LIMIT 1;
  
  INSERT INTO authority (name)
  SELECT * FROM (SELECT 'ROLE_ADMIN') AS tmp
  WHERE NOT EXISTS (
      SELECT name FROM authority WHERE name = 'ROLE_ADMIN'
  ) LIMIT 1;
  
  INSERT INTO user_authority (username, authority)
  SELECT * FROM (SELECT 'admin', 'ROLE_USER') AS tmp
  WHERE NOT EXISTS (
      SELECT username, authority FROM user_authority WHERE username = 'admin' and authority = 'ROLE_USER'
  ) LIMIT 1;
  
  INSERT INTO user_authority (username, authority)
  SELECT * FROM (SELECT 'admin', 'ROLE_ADMIN') AS tmp
  WHERE NOT EXISTS (
      SELECT username, authority FROM user_authority WHERE username = 'admin' and authority = 'ROLE_ADMIN'
  ) LIMIT 1;