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Quiz 6 agregari

Authored by Lucian Lazar

Computers

Professional Development

Used 15+ times

Quiz 6 agregari
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Care din urmatoarele sunt functii de agregare?

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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