
SQL запросы
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
Oksana O
Used 5+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Для создания новой таблицы в существующей базе данных используют команду:
NEW TABLE
CREATE TABLE
MAKE TABLE
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Запрос для выборки всех значений из таблицы «Persons» имеет вид:
SELECT ALL Persons
SELECT .[Persons]
SELECT * FROM Persons
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Наиболее распространенным является тип объединения:
INNER JOIN
FULL JOIN
LEFT JOIN
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое выражение используется для возврата только разных значений?
SELECT DISCINCT
SELECT DIFFERENT
SELECT UNIQUE
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Что возвращает запрос SELECT * FROM Students?
Внутреннюю структуру таблицы «Students»
Рассчитанное суммарное количество записей в таблице «Students»
Все записи из таблицы «Students»
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Запрос "SELECT name ___ Employees WHERE age ___ 35 AND 50" возвращает имена работников, возраст которых от 35 до 50 лет. Заполните пропущенные места в запросе.
INTO, IN
FROM, IN
FROM, BETWEEN
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Заполните пробелы в запросе «SELECT ___, Сountry FROM ___ », который возвращает имена заказчиков и страны, где они находятся, из таблицы «Customers».
*, Customers
Name, Customers
NULL, Customers
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