Startkey

Startkey is like a secret code that helps you find things in a big pile of stuff. Imagine you have a big box with lots of toys inside, but you only want to find your favorite toy car. First, you have to remember a special secret code, which is your startkey. Then, you start looking through the box and each time you see a toy, you check if it matches your startkey. If it does, you keep looking through the toys that come after it until you find the one you want. This way, you can quickly find what you're looking for without having to waste time looking through everything. In a similar way, startkey helps your computer search through lots of information quickly, and find just the things you want.