A lot of people use the string +and+1=0+ before their queries, most of the time it is just a waste of time to type this out, the only time you need this is if you try ORDER BY 300-- and you do not receive an error, then you would add the and 1=0 to your query.To find number of columns you start with ORDER BY 1, if it does not error then you are good to go, sometimes you will get a syntax error when