發送短信 : Visual knowledge query language and its translation to SQL

  ____     _    _    _    _      ___     _____    
 |  _ \\  | || | || | |  | ||   / _ \\  |  __ \\  
 | |_| || | || | || | |/\| ||  | / \ || | |  \ || 
 | .  //  | \\_/ || |  /\  ||  | \_/ || | |__/ || 
 |_|\_\\   \____//  |_// \_||   \___//  |_____//  
 `-` --`    `---`   `-`   `-`   `---`    -----`