
С2_Извлечение данных из таблиц
Quiz
•
Professional Development
•
3rd Grade
•
Practice Problem
•
Medium
Ильнар Шафигуллин
Used 199+ times
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5 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Какие способы связывания таблиц существуют?
INNER JOIN
LEFT JOIN
FULL JOIN
UPPER JOIN
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
INNER JOIN выдаёт информацию, которая содержится в обеих таблицах одновременно.
1. Верно
2. Неверно
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Какие способы связывания выдают всю информацию из одной таблицы, и добавляют соответствующие данные из другой?
INNER JOIN
LEFT JOIN
FULL JOIN
RIGHT JOIN
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Какой способ связывания таблиц представлен на рисунке?
INNER JOIN
LEFT JOIN
FULL JOIN
RIGHT JOIN
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой параметр позволяет идентифицировать каждую конкретную запись таблицы?
1. Внутренний ключ
2. Вторичный ключ
3. Первичный ключ
4. Внешний ключ
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