Today I was playing with my pet site FoneArena.com
Was figuring out ways of improving the site. And I had not added some highly accessed columns in a table as Indexes.
So i checked out what diff a query was going to make with and without an Index.
consider this simple query :
[code lang=”sql”]
SELECT Distinct col from table ORDER BY col ASC LIMIT 10
[/code]
The above query took 0.0034 seconds to execute
Now how indexing helped me reduce the query time to 0.0009 seconds.
Can you believe that ?
nearly 400% of time saved just by adding an Index.
