This 1Z0-829 practice question tests your understanding of utilizing java object-oriented approach. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: static method. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
```
-- Creating a PL/SQL function
CREATE OR REPLACE FUNCTION get_emp_name (p_emp_id NUMBER) RETURN VARCHAR2 IS
v_name employees.last_name%TYPE;
BEGIN
SELECT last_name INTO v_name FROM employees WHERE employee_id = p_emp_id;
RETURN v_name;
END;
```
Given the exhibit, which statement about calling this method is true?
Exhibit
Refer to the exhibit.
```
-- Creating a PL/SQL function
CREATE OR REPLACE FUNCTION get_emp_name (p_emp_id NUMBER) RETURN VARCHAR2 IS
v_name employees.last_name%TYPE;
BEGIN
SELECT last_name INTO v_name FROM employees WHERE employee_id = p_emp_id;
RETURN v_name;
END;
```
A
It must be called using the `new` keyword.
Why wrong: Incorrect. The `new` keyword is used to instantiate objects, not to call static methods.
B
It can only be called from a static context, not from an instance.
Why wrong: Incorrect. Static methods can be called from both static and instance contexts (though from instance context, it's discouraged via object reference).
C
It can be called as `ClassName.getEmpName(101)`.
Correct. Static methods are called on the class, e.g., `ClassName.methodName()`.
D
It cannot be used because it contains a loop.
Why wrong: Incorrect. The presence of a loop does not affect the ability to call a method; only if the method is not static would instance creation be necessary.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It can be called as `ClassName.getEmpName(101)`.
Option C is correct because a static method can be called directly on the class without creating an instance. The method `getEmpName` is static and returns a value, so it can be invoked as `ClassName.getEmpName(101)`. Instance methods require an object reference, and non-static methods cannot be called in a static context without an instance.
Key principle: Static method
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
It must be called using the `new` keyword.
Why it's wrong here
Incorrect. The `new` keyword is used to instantiate objects, not to call static methods.
✗
It can only be called from a static context, not from an instance.
Why it's wrong here
Incorrect. Static methods can be called from both static and instance contexts (though from instance context, it's discouraged via object reference).
✓
It can be called as `ClassName.getEmpName(101)`.
Why this is correct
Correct. Static methods are called on the class, e.g., `ClassName.methodName()`.
Related concept
Static method
✗
It cannot be used because it contains a loop.
Why it's wrong here
Incorrect. The presence of a loop does not affect the ability to call a method; only if the method is not static would instance creation be necessary.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Java often tests the misconception that any method that performs I/O or database operations cannot be called directly, but the restriction is about modifying state (side effects) in contexts like lambdas, not about reading data. Here, the key is that the method is static, not that it contains a SELECT statement.
Trap categories for this question
Keyword trap
Incorrect. The `new` keyword is used to instantiate objects, not to call static methods.
Detailed technical explanation
How to think about this question
In Oracle, for a function to be callable in a SQL statement, it must be defined with the `PRAGMA RESTRICT_REFERENCES` (or in newer versions, the function must be deterministic and not violate read/write consistency). The function must not write to the database (WNDS) and must not read or write package state (WNPS, RNPS, RNDS) unless explicitly allowed. This ensures that SQL queries remain side-effect-free and predictable. A real-world scenario is using a function to format or transform column values in a SELECT list, which is common in reporting queries.
KKey Concepts to Remember
Static method
Instance method
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Static method
Real-world example
How this comes up in practice
A practitioner preparing for the 1Z0-829 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Static method Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Review static method, then practise related 1Z0-829 questions on the same topic to reinforce the concept.
The correct answer is: It can be called as `ClassName.getEmpName(101)`. — Option C is correct because a static method can be called directly on the class without creating an instance. The method `getEmpName` is static and returns a value, so it can be invoked as `ClassName.getEmpName(101)`. Instance methods require an object reference, and non-static methods cannot be called in a static context without an instance.
What should I do if I get this 1Z0-829 question wrong?
Review static method, then practise related 1Z0-829 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Static method
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