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 : 21 June 2025
All the best!!
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1. Which of the following is a valid way to declare a PL/SQL index-by table of records?
2. Which of the following is a valid way to initialize a PL/SQL nested table?
3. Which of the following is a valid way to declare a PL/SQL nested table of records?
4. What is the purpose of the LIMIT clause in a PL/SQL cursor loop?
5. Which of the following is true about the LIMIT function for collections?
6. What is the correct syntax to declare an associative array of integers indexed by string?
7. 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
8. What happens when you try to access an element of a nested table that doesn't exist?
9. What happens when you use the DELETE method on a VARRAY?
10. What happens when you use the TRIM method on a nested table?
11. Which of the following is NOT a valid operation on an associative array?
12. Which of the following is a valid way to access an element in a PL/SQL nested table?
13. 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
14. Which of the following is a valid way to access an element in a PL/SQL associative array?
15. What is the purpose of the BULK COLLECT clause in a PL/SQL cursor loop?
16. Which method is used to add an element to the end of a nested table or VARRAY?
17. What is the purpose of the SAVE EXCEPTIONS clause in a PL/SQL FORALL statement?
18. 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
19. What is the purpose of the MEMBER OF operator in PL/SQL?
20. Which of the following is NOT a valid index type for an associative array?
21. Which method can be used to find out if a collection is empty?
22. What happens when you assign an existing collection to another variable of the same type?
23. Which of the following is NOT a type of collection in PL/SQL?
24. Which of the following is a valid way to declare a PL/SQL associative array?
25. Which of the following is a valid way to declare a PL/SQL varray of records?
26. What is the maximum size of a PL/SQL collection?
27. What is the purpose of the MULTISET UNION DISTINCT operator in PL/SQL?
28. 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
29. Which of the following is the correct way to initialize a PL/SQL associative array?
30. What is the purpose of the FORALL statement in PL/SQL?
31. What is the purpose of the MULTISET UNION operator in PL/SQL?
32. What is the purpose of the EXISTS method in PL/SQL collections?
33. What is the primary difference between a nested table and a VARRAY?
34. What is the maximum number of elements allowed in a VARRAY?
35. Which collection type allows indexing by non-integer types?
36. What is the purpose of the MULTISET INTERSECTION operator in PL/SQL?
37. Which of the following is true about the FIRST and LAST methods of a collection?
38. What is the purpose of the MULTISET EXCEPT operator in PL/SQL?
39. Which of the following is a valid way to declare a PL/SQL varray?
40. Which of the following is a valid way to declare a PL/SQL index-by table?
41. Which method is used to remove all elements from a collection?
42. What is the purpose of the LIMIT clause in a PL/SQL bulk collect loop?
43. What is the purpose of the CURSOR FOR loop in PL/SQL?
44. Which method can be used to retrieve both the index and value of a collection element in a single operation?
45. Which method returns the number of elements in a collection?