Copy the contents of table from one production system to other

Hi Experts,

I need to copy the contents of tables T880, T9ACW, T9AGZ from one sap system to other.

Which is the most effective method other than transporting the contents?

Could we write a program or RFC or something for this?

Please let me know your comments.

Points will be given to all the helpful answers.

Thank you,

Nobin.