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hallo coach
aku mau tanya, setiap membuat primary key, apakah harus selalu ada constraint?
“constraint pk_pelanggan
primary key (kodepelanggan)”trus dari contoh query diatas, pk_pelanggan asalnya darimana ya ?
thank you coach…
Hi Lestari,
Betul, karena primary key merupakan salah satu bentuk constraint
Pk_pelanggan merupakan nama constrain yg bebas kamu ganti sendiri, yg penting mudah dipahami
Regards
William
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