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Quiz 6 subinterogari

Authored by Lucian Lazar

Computers

Professional Development

Used 21+ times

Quiz 6 subinterogari
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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

Ce rezultat obtinem daca executam separat doar subinterogarea necorelata?

Rezultatul subinterogarii

Eroarea invalid identifier

Eroarea too many rows

Nici una din celelalte variante

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Operatorul EXISTS se foloseste?

Intr-o subinterogare necorelata

Intr-o subinterogare corelata

In orice fel de interogare

Nici una din celelalte variante

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ce functie folosim intr-o interogare ierarhica pentru a afisa intr-o coloana in mod arborescent ierarhia pornind de la un element?

SYS CONNECT BY PATH

CONNECT BY PRIOR

UPPER

LOWER

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Care este ordinea corecta a clauzelor unei interogari SQL?

WHERE, GROUP BY, HAVING

WHERE, HAVING, GROUP BY

GROUP BY, HAVING, WHERE

GROUP BY, WHERE, HAVING

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