Convert Plist file to SQLite database - For LoGiCBuGG

I need 4 Plist files, converting over to an sqlite database. 1 file has approx 700 items, each item containing upto 20 values the other 3 are much smaller, approx 50 items in each containing 10 values for each item. I'll need to get documentation through for the structure of the SQLite database. It should allow common queries. Many thanks.