MySql variable ? please.

[ZiNgA BuRgA]

No, databases give out what is put into them.  It's not like Excel where you can have separate input (format) and output (text) values.
You can generate calculated values in a SELECT statement, but it cannot be stored (dynamically at least).
Eg

SQL Code

SELECT CONCAT("abc", fid, "def") AS my_field FROM mybb_forums;

---