NestJS - Database with TypeORM
Why is it recommended to use parameterized queries with QueryBuilder instead of string concatenation for WHERE clauses?
Why is it recommended to use parameterized queries with QueryBuilder instead of string concatenation for WHERE clauses?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand risks of string concatenation
Concatenating user input directly can allow SQL injection attacks.Step 2: Benefits of parameterized queries
Parameterized queries safely insert values and prevent injection.Final Answer:
To prevent SQL injection attacks and improve query safety -> Option DQuick Check:
Parameterized queries = safer, prevent injection [OK]
Quick Trick: Always use parameters to avoid SQL injection [OK]
Common Mistakes:
- Thinking parameterization improves speed primarily
- Believing string concatenation is unsupported
- Assuming parameterization caches results
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