Ce clauza folosim intr-o interogare SQL pentru a uni doua tabele?

Quiz 4 joinuri

Quiz
•
Computers
•
Professional Development
•
Easy
Lucian Lazar
Used 14+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
SELECT
FROM
JOIN
WHERE
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este ordinea corecta a clauzelor unei interogari SQL?
SELECT FROM WHERE JOIN
SELECT JOIN FROM WHERE
SELECT WHERE FROM JOIN
SELECT FROM JOIN WHERE
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce clauza introduce o conditie de join dintre doua tabele?
FROM
JOIN
ON
WHERE
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ca sa nu primim eroare la executie, trebuie sa prefixam cu aliasi?
Coloanele care exista in mai multe tabele
Toate coloanele
Nici o coloana
Coloanele din clauza JOIN
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Joinul intre doua tabele se face pe o coloana care
E cheie primara in una din tabele
E cheie straina in una din tabele
Ambele variante
Nici una din variante nu este obligatorie
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cate tabele putem uni prin join?
Maxim 2
Maxim 3
Maxim 8
Un numar nelimitat de tabele
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Clauza INNER JOIN este
Echivalenta cu JOIN
Un alt tip de join
Nu mai este suportata
Valabila doar in bazele de date Oracle
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