MySQL query to copy data from one column to another column , concat data
MySQL query to copy data from one column to another column:
http://www.expertphp.in/article/mysql-query-to-copy-data-from-one-column-to-another-column
SQL UPDATE all values in a field with appended string CONCAT not working:
https://stackoverflow.com/questions/4128335/sql-update-all-values-in-a-field-with-appended-string-concat-not-working