
SQL IC
Authored by Marcin Zielinski
Professional Development
1st - 3rd Grade
Used 6+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Polecenie SQL wykorzystywane do modyfikowania rekordów
MODIFY
UPDATE
CHANGE
SELECT
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
SELECT order_no, order_line, avg(qty) FROM customer_Order_Line. Po czym grupować, by nie wyrzuciło błędu?
order_line
order_no, order_line
order_no
qty
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ograniczenie rekordów zamówienie klienta których średnia cena linii jest większa od 10 - za pomocą czego dodamy ograniczenia?
WHERE
GROUP BY
HAVING
ORDER BY
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prawidłowa kolejność zapytania SQL
SELECT
FROM
GROUP BY
WHERE
HAVING
ORDER BY
SELECT
HAVING
GROUP BY
WHERE
FROM
ORDER BY
SELECT
FROM
HAVING
GROUP BY
WHERE
ORDER BY
SELECT
FROM
WHERE
GROUP BY
HAVING
ORDER BY
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co służy do grupowania w grupach?
ROLLUP
CUBE
GROUP BY
ORDER
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
FUNKCJA AGREGUJĄCA SUMA POJEDYNCZYCH WARTOŚCI REKORDÓW
SUM(qty)
DISTINCT SUM(qty)
SUM DISTINCT qty
SUM(DISTINCT qty)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Złączenie bazujące na nazwach kolumn obu tabel
JOIN ON
JOIN USING
NATURAL JOIN
INNER JOIN
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