SQL injection mitigations: Method #1
"Prepared Statements" is including place holders instead of variables in SQL queries that later on would be replaced by the user's input.
"Prepared Statements" is including place holders instead of variables in SQL queries that later on would be replaced by the user's input.
The SQL statement will run first with the place holder and then the actual data will be sent to the database and replace the placeholder inside SQL statements
Ex of a prepared statement
String email = "user@email.com";
String sql = "SELECT * FROM users WHERE email = ?";
String email = "user@email.com";
String sql = "SELECT * FROM users WHERE email = ?";
Don't construct the query with string concatenation. That would cause a Sql vulnerability like in the below example:
String email = "user@email.com";
String sql = "SELECT * FROM users WHERE email = '" + email + "'";
String email = "user@email.com";
String sql = "SELECT * FROM users WHERE email = '" + email + "'";
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