Map of the area around Shimogamo Jinja in Kyoto
Shimogamo Jinja, a temple area in the Northern part of Kyoto, where are several Martial art demonstrations held. Every year in the early May one can see horseback arrow shooting and other classical arts of Japan.

Database indices increase performance

Note to self: Remember to add indices on those columns that will be used in queries as keys.

Links to index related documentation in each of the popular databases:

Like all of the documentation linked above states that index is something that can easily increase performance if designed properly.

Therefore, do only proper assigning of indices.