JS动态改变表中的数据

I'm creating an interface that will take data from 2 different databases, feed that data to the interface and use the interface to determine which piece of information will be stored into a new database. (Basically creating a system to merge databases but the user gets to choose what data gets passed to the new database.) In this interface there would also be a text box so the user can input the data in case both databases have the incorrect data.I'm creating an interface that will take data f