How to see data selected from a database

In order to exercise SELECT, we need to know which values were selected from the database. How to show data is covered in Chapter 7, Building User Interfaces. For now, I will get you a fragment of code to display data, which is selected from your SELECT statement.

 The following is an example of code to show data from an internal table:

DATA: gr_alv     TYPE REF TO cl_salv_table,
      gr_columns TYPE REF TO cl_salv_columns_table.

CALL METHOD cl_salv_table=>factory
IMPORTING
     r_salv_table = gr_alv
CHANGING
     t_table      = YOUR TABLE.

 gr_columns = gr_alv->get_columns( ).
 gr_columns->set_optimize( value = 'X' ).
 gr_alv->display( ).

Do you see YOUR TABLE in this piece of code? This is where you can input the name of your table.

For instance, if you want to see data stored in gt_sflight, you use the following code:

DATA: gr_alv     TYPE REF TO cl_salv_table,
      gr_columns TYPE REF TO cl_salv_columns_table.

CALL METHOD cl_salv_table...