I once knew a fellow that only used the built-in applications on his Palm III -- except he had an ebook reader of some sort, and knew how to convert text files to PalmDOC format and sync them to his device. So, as a result, when he mentioned "PDB" files, he invariably meant a PalmDOC E-book.
As Evan pointed out, PDB files are the desktop representation of a Palm DataBase, and a palm database is any internally stored collection of data. Collections of resources (bitmaps, bits of executable code, forms, alerts, etc) are represented on the desktop using PRC files. They're not "files" of any sort on the handheld itself - the PRC and PDB filetypes are merely convenient ways of storing them on a desktop computer. If you're talking about a specific type of PDB file that you're creating somehow (like my friend and his ebooks), you'll need to tell us more about what you're doing. In general, though, as Evan said, each program stores its data in its own database(s), and Hotsync manages keeping those in sync with what's on the desktop - either through a conduit, or by keeping the latest version of the data on the desktop in a PDB file in your Backup folder. Best of luck, Brandon -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
