DA0-002 Data Acquisition and Preparation Practice Question
In SQL, you want to retrieve all products whose names start with 'Pro'. Which WHERE clause should you use?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
WHERE product_name LIKE 'Pro%'
LIKE with pattern 'Pro%' matches strings starting with 'Pro' followed by any characters. '%Pro%' matches any string containing 'Pro', 'Pro_' matches 'Pro' plus one character, and 'Pro' is exact match.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
WHERE product_name LIKE '%Pro%'
Why it's wrong here
Matches any product name containing 'Pro' anywhere.
- ✗
WHERE product_name LIKE 'Pro_'
Why it's wrong here
Matches 'Pro' followed by exactly one character.
- ✗
WHERE product_name = 'Pro'
Why it's wrong here
Exact match only for the name 'Pro'.
- ✓
WHERE product_name LIKE 'Pro%'
Why this is correct
Matches product names starting with 'Pro'.
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