TUGAS BASIS DATA ARCS

TUGAS BASIS DATA

          APA ITU ARCS? 

• ARCS adalah cara untuk mewakili hubungan yang saling ekslusif di ERD dan diwakili pada ERD sebagai garis padat dengan ujung melengkung.

              ARCS

• Sebuah busur selalu menjadi milik satu entitas
• Busur mencakup lebih dari dua hubungan
• Tidak semua hubungan suatu entitas perlu di masukan ke dalam busur
• Suatu entitas dapat memiliki beberapa busur
• Busur harus selalu terdiri dari hubungan dengan opsinolitas yang sama

Contoh!!!!

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