Aptitud | PUERTA CS 1998 | Pregunta 62
Supongamos que tenemos una base de datos que consta de las siguientes tres relaciones. FREQUENTS(student, parlor) giving the parlors each student visits. SERVES(parlor, ice-cream) indicating what kind of ice-creams each parlor serves. LIKES(student, ice-cream) indicating what ice-creams each parlor serves. (Assuming that each student likes at least one ice-cream and frequents at least one parlor) … Continue reading «Aptitud | PUERTA CS 1998 | Pregunta 62»