>Add a third field for data type, and store all data as text. I have used that solution for many years.
I do so. But, once again, double or datetime to string conversion and vice versa are very slow. I want to save/restore data without any conversion if possible.
/A new technology turns into completely outdated stuff before you have a time to read "Getting Started..." section.
/If there are some "system programmers" then others are unsystematic.