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We can search for the enhancements for a particular transaction is by navigating to the program of the transaction code and searching for the term 'CALL CUSTOMER'.
or we can go to the transaction...

The purpose of the statement is to check if the Internal table that you are goin to process is not blank or empty.
Because if the internal table is initial then the whole point of processing the...

To transport to script we can either use scc1 or use standard program rstxscrp.

to transport standard text use the standars program rstxtrans

In order to get the suotal of the particular filed we need to handle the sorting for the report. Declare a structure like SLIS_T_SORTINFO_ALV.

and here
do the coding as follows
it_SORT-SPOS =...

You don need any function special function modules in ALV but u need to pass do_sum as X in field catalogue.

255 is the length of a field