To intuitively understand join operations, we first build a simple example database that stores grocery items and their corresponding categories. The category information is stored in the categories ...

I'm working on a web app, and it part of it, there is a very simple database-driven file/document manager. As a file manager, there is the possibility of sub-folders. So in the DB, I have the ...

is there any cheap ass trick to convert the index keys returned from mysql_fetch_array to all lowercase without specifying every field in the SELECT statement when ...