
4. NORMALISASI DAN MODEL DATA
Authored by Siti Ummi Masruroh
Computers
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Objek riil yang dapat dibedakan satu sama lain, dalam Model ER, disebut
schema
relationship
atribut
Entity
Instance
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
One to one (1:1), one to many (1:N), dan Many to many (M:N), merupakan jenis dari….
relationship constrains
cardinality ratio
participation constrains
skema type
atribut type
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Candidate key yang dipilih untuk mengidentifikasi tuple/baris pada suatu relasi, adalah…
Superkey
alternate key
foreign key
Primary Key
semua salah
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Untuk mengatasi anomaly-anomali yang terjadi karena permasalahan redudansi digunakan….
ERD
Normalisasi
Relasi
Atribut
Model Data
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Sebuah tabel dikatakan baik (efisien) atau normal jika memenuhi kriteria sbb…
Lossless-Join Decomposition
Dependency Preservation
Tidak melanggar BCNF
a,b,c benar semua
Salah semua
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Setiap atribut dalam tabel tersebut harus bernilai atomic (tidak dapat dibagi-bagi lagi), merupakan ciri dari…
1NF
2NF
3NF
BCNF
4NF
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Semua atribut selain primary key, secara utuh memiliki Functional Dependency pada primary key, merupakan ciri dari…
1NF
2NF
3NF
BCNF
4NF
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