how to copy internal table with header line in an internal without header

Hi all,

I need to copy the content of internal table t_mytable with header line, column a and b in another internal table t_mytable2 without header line, column c and d. How is the best way and efficient way to do this? The internal table can have more than 9999 entries.

example:

loop at t_mytable

t_mytable2-d = t_mytable-a.

t_mytable2-c = t_mytable-b.

endloop.

Please send your ideas.

Thanks