How to add new column into table when server is running?

Hi everybody,

I have a problem: I want to insert a new column into a table (person, it
ready exits in DB.). But i dont know to do what.
Do yo have any idea to help me?
Thank you for your reading.

What do you mean by inserting it into a table? Do you mean a table in
the database or that you just want to add the value into an html
table? I assumed the former initially, but then you say that it
already exists in the databsase.

If you just want to insert a new column into an html table on a web
page then just add the html for the column. Perhaps you need to
explain your question in more detail.