SQL - Security Basics
Why does SQL injection often succeed when developers use string concatenation instead of parameterized queries?
Why does SQL injection often succeed when developers use string concatenation instead of parameterized queries?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand string concatenation risk
Concatenation merges user input directly into SQL code, mixing code and data.Step 2: Understand parameterized query advantage
Parameterized queries keep code and data separate, preventing injection.Final Answer:
Because concatenation mixes code and data, allowing attackers to inject SQL -> Option DQuick Check:
Mixing code and data causes injection risk [OK]
Quick Trick: Mixing code and data enables injection attacks [OK]
Common Mistakes:
- Thinking parameterized queries are less secure
- Believing concatenation escapes input automatically
- Assuming manual sanitization is always needed with parameters
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