SQL - Security Basics
Identify the error in this prepared statement usage:
PREPARE stmt FROM 'SELECT * FROM products WHERE price < ?'; EXECUTE stmt;
Identify the error in this prepared statement usage:
medium📝 Debug Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Check the prepared statement placeholders
The query has a ? placeholder that needs a parameter value.Step 2: Check EXECUTE usage
EXECUTE stmt is called without providing a parameter value, causing an error.Final Answer:
Missing parameter value for the placeholder -> Option AQuick Check:
Error cause = C [OK]
Quick Trick: Always provide parameters when executing prepared statements [OK]
Common Mistakes:
- Forgetting to bind parameters
- Confusing PREPARE syntax
- Thinking placeholders are optional
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