Pergunta de entrevista da empresa Plus91 Technologies

Difference between mysql_fetch_row,mysql_fetcch_object,mysql_fetch_array How to retrieve total numbers of resultset using which function? Advantages of non relational database over relational databases? Write program to print all files in folder? How to transfer data from one database on 1 server to other database on other server/-code What u will do to be good in development?