-6207' Union All: Select Null,null,null,char(113)||char(122)||char(106)||char(112)||char(113)||char(110)||char(117)||char(68)||char(76)||char(114)||char(89)||char(111)||char(84)||char(100)||char(85)||char(75)||char(116)||char(73)||char(83)||char(105)||char

Ensure the database user account used by your application only has the permissions it absolutely needs. For example, a web app shouldn't be using a "root" or "admin" account to perform simple searches. 5. Keep Software Updated

$stmt = $pdo->prepare('SELECT * FROM users WHERE id = :id'); 2. Input Validation & Sanitization Never trust user-supplied data. Ensure the database user account used by your

Frameworks like Entity Framework (C#), Hibernate (Java), or Eloquent (PHP) often use prepared statements by default, reducing the risk of manual coding errors. 4. Principle of Least Privilege Keep Software Updated $stmt = $pdo->prepare('SELECT * FROM

Always patch your database management system (DBMS) and any web frameworks you use, as updates often include security fixes for known vulnerabilities. not as executable code.

Strip out potentially harmful characters like ' , -- , or ; . 3. Use an ORM (Object-Relational Mapper)

This is the most effective defense. Instead of building a query string with user input, you use placeholders. The database treats the input strictly as data, not as executable code.