SQL-quiz
Quiz
•
Professional Development
•
1st Grade
•
Practice Problem
•
Medium
Ника Касымова
Used 37+ times
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Какой командой нужно воспользоваться, чтобы выбрать данные из базы?
LIMIT
QUERY
FETCH
SELECT
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Какой командой нужно воспользоваться, чтобы вставить данные в таблицу?
INSERT NEW
ADD NEW
INSERT INTO
ADD RECORD
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Как вы выберете столбец СOMMON_NAME из таблицы EMPLOYEES?
SELECT *.COMMON_NAME FROM EMPLOYEES
EXTRACT EMPLOYEES.COMMON_NAME
SELECT COMMON_NAME FROM EMPLOYEES
QUERY COMMON_NAME FROM EMPLOYEES
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Как вы выберете все столбцы из таблицы EMPLOYEES?
QUERY * FROM EMPLOYEES
SELECT * FROM EMPLOYEES
EXTRACT EMPLOYEES.ALL
SELECT ALL FROM EMPLOYEES
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Отметьте вариант, который позволит выбрать список имен сотрудников из таблицы EMPLOYEES, имя которых ALICE
SELECT COMMON_NAME FROM EMPLOYEES AND ‘ALICE’
EXTRACT EMPLOYEES.COMMON_NAME = ‘ALICE’
SELECT COMMON_NAME FROM EMPLOYEES WHERE COMMON_NAME = ‘ALICE’
QUERY COMMON_NAME=’ALICE’ FROM EMPLOYEES
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Какой результат вернет следующая выборка из таблиц выше?
SELECT E.COMMON_NAME,
D.DEPARTMENT_NAME
FROM EMPLOYEES E
INNER JOIN DEPARTMENTS D ON D.EMPLOYEE_ID = E.EMPLOYEE_ID
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Какого оператора не хватает в запросе, чтобы получить результат, как в таблице ниже?
SELECT DEPARTMENT_NAME, COUNT(EMPLOYEE_ID) AS CNT_EMPLOYEE
FROM DEPARTMENTS
_____________ DEPARTMENT_NAME
INSERT
HAVING
GROUP BY
DISTINCT
8.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Через какой JOIN нужно связать EMPLOYEES с DEPARTMENTS (в порядке очередности), чтобы получить результат, как в таблице ниже?
OUTER
LEFT
RIGHT
INNER
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