Welcome to your Unmasking the Best of PLSQL Quiz on Collection (2024) This quiz has multiple choice questions and each has only one correct answer.
Total Questions : 45
To pass this quiz you need to score 80% or above.
Time Provided : 45 minutes
Today's Date : 28 May 2025
All the best!!
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1. Which of the following is NOT a type of collection in PL/SQL?
2. Which of the following is a valid way to declare a PL/SQL associative array?
3. What is the purpose of the FORALL statement in PL/SQL?
4. Which of the following is a valid way to initialize a PL/SQL nested table?
5. Which collection type allows indexing by non-integer types?
6. What is the purpose of the CURSOR FOR loop in PL/SQL?
7. Which of the following is a valid way to declare a PL/SQL nested table of records?
8. Which of the following is NOT a valid index type for an associative array?
9. Which method can be used to retrieve both the index and value of a collection element in a single operation?
10. What is the purpose of the LIMIT clause in a PL/SQL cursor loop?
11. Which of the following is a valid way to access an element in a PL/SQL nested table?
12. What is the correct syntax to declare an associative array of integers indexed by string?
13. What happens when you use the TRIM method on a nested table?
14. What is the maximum number of elements allowed in a VARRAY?
15. Which of the following is a valid way to declare a PL/SQL varray?
16. Which method returns the number of elements in a collection?
17. What is the purpose of the SAVE EXCEPTIONS clause in a PL/SQL FORALL statement?
18. What is the maximum size of a PL/SQL collection?
19. What is the purpose of the LIMIT clause in a PL/SQL bulk collect loop?
20. Which method can be used to find out if a collection is empty?
21. Which of the following is a valid way to declare a PL/SQL nested table?
A) TYPE my_table IS TABLE OF VARCHAR2(50);
B) TYPE my_table IS TABLE OF VARCHAR2(50) INDEX BY PLS_INTEGER;
C) TYPE my_table IS TABLE OF VARCHAR2(50) INDEX BY VARCHAR2(50);
D) Both A and B
Deselect Answer
22. Which of the following is a valid way to declare a PL/SQL index-by table of records?
23. What is the purpose of the MEMBER OF operator in PL/SQL?
24. What happens when you assign an existing collection to another variable of the same type?
25. Which of the following is the correct way to initialize a PL/SQL associative array?
26. What happens when you use the DELETE method on a VARRAY?
27. Which of the following is true about the LIMIT function for collections?
28. Which of the following is a valid way to declare a PL/SQL varray of records?
29. Which of the following is a valid way to declare a PL/SQL index-by table?
30. Which method is used to remove all elements from a collection?
31. What is the purpose of the MULTISET EXCEPT operator in PL/SQL?
32. What is the purpose of the MULTISET UNION DISTINCT operator in PL/SQL?
33. What is the purpose of the MULTISET INTERSECTION operator in PL/SQL?
34. Which method is used to add an element to the end of a nested table or VARRAY?
35. What is the primary difference between a nested table and a VARRAY?
36. Which of the following is a valid way to access an element in a PL/SQL associative array?
37. Which of the following is a valid way to declare a PL/SQL index-by table of object types?
A) TYPE my_table IS TABLE OF my_type INDEX BY PLS_INTEGER;
B) TYPE my_table IS VARRAY(10) OF my_type;
C) TYPE my_table IS TABLE OF my_type INDEX BY VARCHAR2(50);
D) Both A and C Choose the correct option
Deselect Answer
38. Which of the following is a valid way to declare a PL/SQL index-by table of nested tables?
A) TYPE my_table IS TABLE OF TABLE OF VARCHAR2(50) INDEX BY PLS_INTEGER;
B) TYPE my_table IS VARRAY(10) OF TABLE OF VARCHAR2(50);
C) TYPE my_table IS TABLE OF TABLE OF VARCHAR2(50) INDEX BY VARCHAR2(50);
D) Both A and C Choose the correct option
Deselect Answer
39. Which of the following is NOT a valid operation on an associative array?
40. What happens when you try to access an element of a nested table that doesn't exist?
41. Which of the following is true about the FIRST and LAST methods of a collection?
42. Which of the following is a valid way to declare a PL/SQL object type with a nested table attribute?
A) CREATE TYPE my_type AS OBJECT (
field1 VARCHAR2(50),
field2 TABLE OF VARCHAR2(50)
);
B) CREATE TYPE my_type AS OBJECT (
field1 VARCHAR2(50),
field2 VARRAY(10) OF VARCHAR2(50)
);
C) CREATE TYPE my_type AS OBJECT (
field1 VARCHAR2(50),
field2 INDEX BY TABLE OF VARCHAR2(50)
);
D) Both A and B
Deselect Answer
43. What is the purpose of the EXISTS method in PL/SQL collections?
44. What is the purpose of the BULK COLLECT clause in a PL/SQL cursor loop?
45. What is the purpose of the MULTISET UNION operator in PL/SQL?