== Immutable Queries

These are the best defense against SQL Injection.  They either do not have data that could get interpreted or the treat the data as a single entity that is bound to a column without interpretation.

=== Static Queries
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select * from products;
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select * from users where user = "'" + session.getAttribute("UserID") + "'"; 
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=== Parameterized Queries
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String query = "SELECT * FROM users WHERE last_name = ?";
PreparedStatement statement = connection.prepareStatement(query);
statement.setString(1, accountName);
ResultSet results = statement.executeQuery();
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=== Stored Procedures
Only if stored procedure does not generate dynamic SQL
