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Quiz 8 agregari

Authored by Lucian Lazar

Computers

Professional Development

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Quiz 8 agregari
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ce proprietati are o subinterogare?

Este un select in select

Se trece intre paranteze

Apare doar in dreapta unui operator

Toate celelate variante

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cum se executa o subinterogare corelata?

Singura

Impreuna cu selectul extern

Dupa selectul extern

Inaintea selectului extern

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ce proprietati are o subinterogare necorelata?

Se poate executa singura

Returneaza un rezultat

Rezultatul este folosit de selectul extern

Toate celelate variante

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In ce clauza ale unei interogari SQL folosim cel mai des o subinterogare?

FROM

WHERE

HAVING

JOIN

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ce alias folosim pentru o subinterogare care selecteaza date dintr-o tabela si este folosita apoi intr-un join?

Orice alias

Numele tabelei

Prima litera din numele tabelei

Nu este niciodata necasar sa folosim alias

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Operatorul EXISTS se foloseste?

Intr-o subinterogare necorelata

Intr-o subinterogare corelata

In orice fel de interogare

In orice fel de subinterogare

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In ce clauza a unei interogari se foloseste operatorul EXISTS?

FROM

WHERE

HAVING

Toate celelate variante

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