mysql數據庫訪問權限限制設置

---只能本地訪問，設置隨意訪問

    update user set host='%' where host='localhost'；

    flush privileges;

---隨意訪問，設置只能本地訪問

   update user set host = "localhost" where user = "hello" and host= "%";

   flush privileges;

---設置固定的ip可以訪問

  GRANT ALL PRIVILEGES ON *.* TO 'hello'@'133.22.88.77' IDENTIFIED BY 'mysql_password' WITH GRANT OPTION;

  flush privileges;