Free Oracle 1Z0-149 Exam Questions

Become Oracle Certified with updated 1Z0-149 exam questions and correct answers

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Total 389 Questions | Updated On: Sep 23, 2026

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Question 1

In which of the following scenarios would you recommend using associative arrays?

A : When you want to retrieve an entire row from a table and perform calculations

B : When you know the number of elements in advance and the elements are usually accessed sequentially

C : When you want to create a separate lookup table with multiple entries for each row of the main table, and access it through join queries

D : When you want to create a relatively small lookup table, where the collection can be constructed on memory each time a subprogram is invoked

Answer: D

Question 2

Which of the following is not true about the Constructors?

A : These are functions that return a new object as its value.

B : Every object has a system defined constructor method.

C : The name of the constructor is same as the object type.

D : None of the above.

Answer: D

Question 3

Which of the following is true about PL/SQL nested tables?

A : Nested tables are like one-dimensional arrays with arbitrary number of elements.

B : Unlike arrays a nested table doesn’t have declared number of elements. The size of a nested table can increase dynamically.

C : Initially a nested array has consecutive subscripts or dense, but it can become sparse when elements are deleted from it.

D : All of the above.

Answer: D

Question 4

Consider a function totalEmp () which takes a number as an input parameter and returns the total number of employees who have a salary higher than that parameter.

Examine this PL/SQL package AS –

Which two definitions of totalEmp () result in an implicit conversion by Oracle Database on executing this PL/SQL block?

A :

B :

C :

D :

Answer: B,C

Question 5

View the Exhibit to examine the PL/SQL code.

Identify the correct output for the code.

A : King 17-JUN-87 1500

B : King 17-JUN-87 24000

C : King current sysdate 1500

D : King current sysdate 24000

Answer: C

Page: 1 / 78

Total 389 Questions | Updated On: Sep 23, 2026

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