Migration Help

Hi,

I need to create a migration that will populate data in my table.

Table is like
Column table
(id, column_name, fa_module_id)

column_name stores column name of the tables existing in our database

for example I have a table
Customer(id, first_name, last_name, age)

then each row of Columns table can be used to store a single column
information for the customer module

one row can be
(id = 1, column_name = “first_name”, module_id(f.k.)

Now I have to write a migration to automatically populate all the
column name for the excisting tables in our database
in rows of column table.
Please help!

Thanks and regards
Sumeet