Mysql convert table from long format to wide format

Question

I have a MySQL table like this:

And I want to convert it from long format to wide format like this

Sorry. I'm new and don't know how to post a table

Answer 1

Try this:

insert into goodTable 
select
bt.id,
(select bt1.value from badTable bt1 where bt1.info = 'firstname' and bt1.id = bt.id),
(select bt1.value from badTable bt1 where bt1.info = 'lastname' and bt1.id = bt.id),
(select bt1.value from badTable bt1 where bt1.info = 'phone' and bt1.id = bt.id)
from
 badTable bt
group by id ;

Working fiddle here: http://sqlfiddle.com/#!2/45f29e/2