Quick Answer
The correct answer is that `gr.get()` and `gr.next()` are both valid ways to retrieve a single record from a GlideRecord query on the task table. `gr.get(sys_id)` directly fetches a record by its unique identifier without needing a prior query, returning true if found, while `gr.next()` advances the cursor to the first record after a `query()` and returns true if a record exists, making it the standard method to access a single record from a result set. On the ServiceNow Certified Application Developer CAD exam, this tests your understanding of GlideRecord iteration versus direct lookup—a common trap is confusing `get()` with `hasNext()`, which only checks existence without retrieving data. Remember that `get()` is for direct access by sys_id, while `next()` is for stepping through query results; a useful memory tip is “Get by ID, Next by query.”
This SNOW-CAD practice question tests your understanding of core application development. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
Which TWO of the following are valid ways to retrieve a single record from a GlideRecord query on the task table?
gr.next()
Correct: Used to iterate through results; when called once, it retrieves the first record.
gr.getRow()
Why wrong: Incorrect: getRow() is not a valid GlideRecord method.
gr.getUniqueValue()
Why wrong: Incorrect: getUniqueValue() returns a field value, not a record.
gr.get()
Correct: Gets a record by sys_id or query condition.
gr.getByID()
Why wrong: Incorrect: getByID() is not a valid GlideRecord method.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
gr.next()
Option A is correct because `gr.next()` is the standard method to advance the cursor to the next record in a GlideRecord query result set. When called after a `query()`, it retrieves the first record (or subsequent records) and returns true if a record exists, making it a valid way to access a single record. Option D is correct because `gr.get(sys_id)` retrieves a single record by its sys_id directly, without needing a prior query, and returns true if the record is found.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
gr.next()
Why this is correct
Correct: Used to iterate through results; when called once, it retrieves the first record.
Related concept
Read the scenario before looking for a memorised answer.
gr.getRow()
Why it's wrong here
Incorrect: getRow() is not a valid GlideRecord method.
gr.getUniqueValue()
Why it's wrong here
Incorrect: getUniqueValue() returns a field value, not a record.
gr.get()
Why this is correct
Correct: Gets a record by sys_id or query condition.
Related concept
Read the scenario before looking for a memorised answer.
gr.getByID()
Why it's wrong here
Incorrect: getByID() is not a valid GlideRecord method.
Common exam traps
The trap here is that candidates often confuse `getUniqueValue()` with retrieving the record itself, or mistakenly think `getByID()` is a valid method because of its similarity to `get()` or `getByID()` in other platforms, while ServiceNow strictly uses `get(sys_id)`.
Detailed technical explanation
Under the hood, `gr.next()` uses the database cursor to fetch the next row from the result set, populating the GlideRecord object's fields; it is essential for iterating through multiple records but also works for a single record. The `get()` method performs a direct database lookup by sys_id (or other unique key if specified), which is more efficient than querying and calling `next()` when you already know the sys_id. A subtle behavior is that `get()` can also accept a single argument that is not a sys_id if the table has a different unique key defined, but by default it uses sys_id.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the SNOW-CAD 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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Core Application Development — This question tests Core Application Development — Read the scenario before looking for a memorised answer..
The correct answer is: gr.next() — Option A is correct because `gr.next()` is the standard method to advance the cursor to the next record in a GlideRecord query result set. When called after a `query()`, it retrieves the first record (or subsequent records) and returns true if a record exists, making it a valid way to access a single record. Option D is correct because `gr.get(sys_id)` retrieves a single record by its sys_id directly, without needing a prior query, and returns true if the record is found.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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