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[B]Hello everybody, hello Dani:icon_cool:![/B] I'm doing my homework of 'Data Base', exactly in the chapter: Relational Algebra, here I am, I can't find a specific relation (or the SQL corresponding query) :icon_confused:! Here the schema: [COLOR="Green"]MEAL(guest,date); MENU(dish,date); PREFERENCE(person,dish);[/COLOR] I wanna find the SQL query (or the relation in Relational Algebra):[COLOR="Green"]"the …
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