Care sunt proprietatile ierarhiilor?
Quiz 5 topuri

Quiz
•
Education
•
Professional Development
•
Medium
Lucian Lazar
Used 26+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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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