I want to use text files as the database for a dating site. with regards to this i need expert advise on the following :- 1) Can i use SQL commands for text file database? 2) Will the text file database run slower than RDBMS databases? 3) If i already have a site accessing mysql database, is it difficult to convert the database it to text file database format and make the site source code to read the new text file based database format? I will pay the best answers provided and give good rating too. Furthermore, also quote an amount if u were to do a project as described in point number 3 which is to convert a PHP source code which is using mysql database to use text file database.