I want to insert beacon scan result in to a database using python and mysql

[Chris Angelico]

On Fri, Nov 11, 2016 at 2:36 AM, Michael Torrie <torriem at gmail.com> wrote:
> On 11/10/2016 06:15 AM, Dennis Lee Bieber wrote:
>> On Wed, 9 Nov 2016 21:05:50 -0800 (PST), sudeeratechneed at gmail.com
>> declaimed the following:
>>
>>>
>>> sql = "insert into beacon VALUES(null, '%s')" % \
>>> (beacon)
>>>
>>       DON'T DO THAT...
>
> Wouldn't hurt to include a brief why on this, and the right way to do
> this.  The why is, of course, that this operation is vulnerable to SQL
> injection. This should be avoided as a matter of practice, even if
> you're not taking input from anyone but yourself.  The correct way to do
> this is to use a prepared statement.  And of course the relevant xkcd
> is:  https://xkcd.com/327/

The easiest way is to use a parameterized query:

cur.execute("insert into beacon VALUES(null, %s)", (beacon,))

I don't understand why so many people conflate parameterized with
prepared. "Prepared statements" have a two-step execution.
"Parameterized queries" needn't.

ChrisA