I recently found an interesting tool to play with databases,
SQLFiddle.
The tool is used to share some fragments of code, running on a
live database, to allow users to not only see (read) the code,
but also actually execute it, to play with the code.
See this
link for all the details.
The nice part is that MySQL 5.5 is part of the supported
databases, try
it here.
It gets better: MySQL 5.6 is also there, so you get to try new 5.6
features, or your favorite query, in a blink, without having
to do an installation.
And icing on the 5.6 cake, the PERFORMANCE_SCHEMA is also
enabled, with grants given to the user to query performance
schema tables.
For example, this is a small "sqlfiddle" that shows how this
works.
As you can see looking at the results after executing this code
fragment, the performance schema is there, ready for you to play
with it.
Marc Alff,
Oracle
P.S.
Views expressed here are my own.
Not a product or service endorsement.
Oct
03
2012