I dont have good experience with PHP and MYSQL. I created a small data base for the company. My database doesn't handle any transactions. I dont check anywhere - Commit and Rollback... I have been reading about this lately. Although I make use of insert/update/delete statement. I was wondering if more than one person is logged on and working on the same file, how will insert/update/delete work. I know I am asking some silly questions, but can somebody clear my doubts? Thanks