發送短信 : Relational to entity-relationship schema translation using semantic and inclusion dependencies

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