Comandi JOIN in MySQL

Quiz
•
Computers
•
12th Grade
•
Medium
Marco Buccione
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è lo scopo del comando JOIN in MySQL?
Mescolare le righe da una tabella
Combinare righe da due o più tabelle basandosi su una colonna correlata.
Aggiornare le righe in due tabelle in contemporanea
Creare una nuova tabella
2.
LABELLING QUESTION
1 min • 1 pt
Metti in corrispondenza i comandi MySQL con la rappresentazione attraverso diagramma di Venn
FULL JOIN
RIGHT JOIN
LEFT JOIN
OUTER JOIN
JOIN
INNER JOIN
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
I comandi LEFT JOIN e RIGHT JOIN possono essere usati per ottenere lo stesso risultato finale?
Vero
Falso
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è la differenza tra un Left Join e un Right Join in MySQL?
La differenza tra un Left Join e un Right Join in MySQL è il tipo di dati che può essere unito.
La differenza tra un Left Join e un Right Join in MySQL è il numero di tabelle che possono essere unite.
La differenza tra un Left Join e un Right Join in MySQL è la sintassi utilizzata per eseguire la join.
La differenza tra un Left Join e un Right Join in MySQL è l'ordine in cui le tabelle vengono unite e le righe risultanti vengono restituite.
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Quali, tra i seguenti, non sono comandi presenti in MySQL?
INNER JOIN
RIGHT JOIN
HAVING
FULL JOIN
DISTINCT
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