Care din urmatoarele sunt functii de agregare?

Quiz 6 agregari

Quiz
•
Computers
•
Professional Development
•
Easy
Lucian Lazar
Used 15+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
COUNT
SUM
AVG
Toate celelate variante
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Singura functie de agregare care poate primi * ca argument este?
SUM
COUNT
MAX
AVG
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ca sa afisam suma unor elemente folosim functia?
COUNT
SUM
AVG
MAX
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O functie de agregare cu clauza GROUP BY returneaza?
Eroare
O singura valoare
Cate o valoare pentru fiecare grup
Cate o valoare pentru fiecare linie din tabel
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Clauza prin care introducem grupul dupa care se face agregarea este?
FROM
WHERE
GROUP BY
HAVING
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este ordinea corecta a clauzelor unei interogari SQL?
FROM, GROUP BY, WHERE
FROM, WHERE, GROUP BY
GROUP BY, FROM, WHERE
GROUP BY, WHERE, FROM
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ca sa afisam distinct numarul de valori ce functie folosim?
COUNT
COUNT DISTINCT
COUNT NVL
COUNT UNIQUE
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