In convert between date time into timestamp post, i tried to explain how to convert ABAP time/date format to ABAP timestamp format. One of the methods i have mentioned in that post was using standard utility class designed for this. Timestamp oriented functionalities ( conversion, add, subtract etc.) is provided under CL_ABAP_TSTMP in ABAP workbench. Below you can find a few sample usage of this classes methods.
Passing ABAP internal memory data to lets say an internal table defined by DATA statement is used very often in ABAP programming. There are different techniques which differs according to architecture of your ABAP program, data size that you want to pass, visibility of your variables(same session or new session) etc.