How to select multiple Rows from a table control

Hai,

I am New to Abap ,I have one Query,Please help me .

I have to Select and Update Multiple Rows Of data From a table control and  to update in  a table using bapi.

How can i Select the multiple records and how to pass it to the Bapi  Parameters. I am using BAPI_ALM_NOTIF_DATA_MODIFY.

Thanks in Advance.

Renjith M Chandran