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Quiz 5 joinuri

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Assessment

Quiz

Computers

Professional Development

Practice Problem

Easy

Created by

Lucian Lazar

Used 13+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ce tip de join este cel mai folosit?

JOIN

LEFT JOIN

CROSS JOIN

Self JOIN

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Daca vrem sa extragem ce este comun in doua multimi folosim?

JOIN

LEFT JOIN

CROSS JOIN

RIGHT JOIN

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

O coloana comuna dintre doua tabele unite prin join trebuie prefixata in

SELECT

JOIN

WHERE

Toate celelate variante

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ce aduce LEFT JOIN din doua multimi?

Ce este comun

Ce este doar in dreapta

Ce este doar in stanga

Ce este comun si doar in stanga

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cand folosim INTERSECT trebuie sa avem grija

Sa selectam acelasi numar de coloane in ambele queryuri

Sa selectam acelasi tip de coloane in ambele queryuri

Ca datele din coloanele selectate sa faca match

Toate celelate variante

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

INTERSECT se face intre

Doua queryuri

Tabela din stanga si cea din dreapta

O tabela si ea insasi

Ce este comun si in doar in stanga

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Produsul cartezian dintre doua tabele returneaza?

Ce este comun

Ce este comun si in stanga

Ce este doar in stanga

Toate combinatiile posibile

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