Какой SQL оператор возвращает только уникальные записи?
Анализ данных в игровой индустрии

Quiz
•
Computers
•
University
•
Medium
Philip Selivanov
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
SELECT DISTINCT
SELECT UNIQUE
SELECT DIFFERENT
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Количество игр на платформе Steam
~30K
~40K
~50K
~60K
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая формула не будет работать в Excel/Google sheets?
=A2+B10
A2+3*B10
=8+C3
=A2*B8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Имеет ли право создатель игры сохранять в базе данных e-mail игроков в соответствии с правилами GDPR?
Да
Нет
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите лишнее понятие (в контексте дашбордов "здоровья" игры)
Удержание
Монетизация
Привлечение
Приватизация
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой SQL запрос вернет количество записей в таблице "Battles"?
SELECT len(*) FROM Battles
SELECT count(*) FROM Battles
SELECT no(*) FROM Battles
SELECT columns(*) FROM Battles
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Moжет ли быть retention > rolling retention?
Может
Не может
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