If you are into computer programming, you would know that when it comes to working with databases, one of the most important part is using the correct connection string. Even for a given database there are various connectionstrings and you might want to choose the one right for the purpose.
You could have your own list of connectionstrings, but if at all you find yourself stranded, just remember connectionstrings.com (an easy name to remember).
Connectionstrings.com has a nice collection of connectionstrings and for almost all kinds of databases. Finding the one you need is easy too.