Confira os seguintes links:
http://dev.mysql.com/doc/maxdb/en/07/c4fc3f0ac2c642e10000000a1550b0/frameset.htm
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/orderby_.htm
Espero que seja útil.
Cumprimentos,
Vibha
*Por favor, marque todas as respostas úteis