Most people who use the Web to lookup information or buy stuff are at first confused by a database application written for the Web. Its really not much different than a Shopping Cart application, it's just there are many more options other than "Find", "Add to Cart" and "Checkout". Instead of "Finding" a product, you are finding other things (Players, Groups, Events, Rounds). If you can't find something, you may need to C(reate it. If you found something, you might want to R(ead it or display the information. That information my also contain other linked information (e.g. the Rounds the player has played). After you read something you may want to U(pdate it. At some point you may also want to D(estroy the information.
The process of Creating, Reading, Updating and Destroying is referred to as a CRUD process for handling Resources or Things. Again, Things or Resources in PtGolf are Players, Groups, Events, Rounds, etc.
The hardest thing to understand about a Web application is that just because you fill out a form on the web, it is not saved until you take some action to update the information. This is usually some form of and update button. Unlike a word processor, there is no auto-save option.
The "How to" questions below are just explanations on to do the creating, reading, updating and destroying actions you must follow for PtGolf to do its stuff!