How use the insert query using parameters?

Question

When i try with this query i get an error says that Perameter email doesn\'t exist, i am sure that the variables : email, login_pass, payment_method,operateur are valid and

Answer 1

Remove quotation marks:

SQLQuery2.sql.Text := 'INSERT INTO registered (email,login_pass,payment_method,operateur)
   VALUES (:email, :login_pass, :payment_method, :avecpuce)';