KUNCI PRIMER DAN KUNCI ASING ASK T3

Quiz
•
Computers
•
7th - 8th Grade
•
Medium
wanmalaini abubakar
Used 8+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Dalam pangkalan data semasa membina jadual hubungan kita hendaklah memastikan kewujudan
kunci primer
kunci asing
password
kekunci
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Berikut adalah ciri-ciri kunci primer . Manakah ciri-ciri yang betul
i-setiap entiti mesti mempunyai sekurang-kurang satu kunci primer
ii- Tiada data berulang atau dibiarkan kosong
iii- Atribut yang merupakan satu nilai universal
iv- atribut yang mempunyai nilai unik
i,ii,iv
i,ii,iii
i,ii,iv
iii,iii,iv
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
kepentingan kunci primer kecuali
menjimatkan ruang storan
memberi nilai universal supaya mudah di kenali
mengelakan pertindihan data
memelihara integriti
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
kekardinalan dalam ERD merujuk kepada
hubungan antara entiti dengan menggambarkan dengan kata tugas
hubungan antara atribut dengan menggambarnya dengan kata tugas
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Apakah perkataan yang sesuai pada rombus
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