SQL Injection

 SQL injection is a code injection technique that might destroy your database.

SQL injection is one of the most common web hacking techniques.

explain how to find and exploit various kinds of SQL injection vulnerabilities, and summarize how to prevent SQL injection.

SQL injection (SQLi) is a web security vulnerability that allows an attacker to interfere with the queries that an application makes to its database. It generally allows an attacker to view data that they are not normally able to retrieve. This might include data belonging to other users, orany other data that the application itself is able to access. In many cases, an attacker can modify or delete this data, causing persistent changes to the application's content or behavior.