4.1.3 KEKUNCI PRIMER DAN KEKUNCI ASING
7th Grade
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4.1.3 KEKUNCI PRIMER DAN KEKUNCI ASING
Quiz
•
Computers
•
7th Grade
•
Easy
SERI RAGANATHAN SANTI
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Kunci primer ialah satu atribut yang mengandungi ______________________________ untuk mewakili setiap rekod dalam jadual.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Atribut merupakan ________________ pada sesuatu entiti.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Atribut diwakili oleh _________ dalam pangkalan data.
Answer explanation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kepentingan kunci primer ___________________
rekod yang sama boleh disimpan secara berulang kali bagi menjimatkan ruang storan komputer
Menjadikan data yang disimpan mempunyai satu nilai unik sebagai pengenalan diri.
Atribut adalah ttidak unik.
boleh ada null value
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Kunci asing ialah atribut yang menghubungkan ___________________ yang mempunyai hubungan.
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Sekurang-kurangnya ada _______________ kunci primer dalam satu entiti.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atribut manakah yang sesuai untuk dipilih sebagai kekunci primer?
NoTelefon
Jantina
NamaPekerja
IDPekerja
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