Quiz 5 topuri
Quiz
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Education
•
Professional Development
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Practice Problem
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Medium
Lucian Lazar
Used 27+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care sunt proprietatile ierarhiilor?
Se stocheaza ca si leagturi parinte copil
Se stocheaza in aceeasi tabela
Pot fi reprezentate ca si arbore
Toate celelate variante
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Conditia care defineste punctul de start al unei interogari ierarhice se pune in clauza?
SELECT
FROM
WHERE
START WITH
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este sintaxa clauzei FETCH intr-o interogare Oracle?
FETCH FIRST x ROWS ONLY
FETCH JUST FIRST x ROWS
FETCH FIRST x RECORDS
FETCH TOP x ROWS
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce functie analitica folosim pentru a afisa rangul inregistrarilor permitand pauze?
RANK
DENSE_RANK
LAG
LEAD
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cand vrem sa afisam copiii unui element intr-o interogare ierarhica, ce coloana folosim langa cuvantul cheie PRIOR?
Coloana parinte
Coloana copil
Oricare coloana
Nici una din celelalte variante
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ca sa afisam distinct numarul de valori nenule ce functie folosim?
COUNT
COUNT DISTINCT
COUNT NVL
Nici una din celelalte variante
7.
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
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