Making it simple (no security at all), when we want to detect whether or not a GET parameter is vulnerable to SQLi, we could just type a ' as the value (?id=') and check if there is any error. (No blind SQL)
But in the case that the parameter is sent using a POST method, how can I detect if it is vulnerable? And then how to exploit it? I think that using a proxy and intercept the query will be the solution, but is there any other way?