ABAP Select data from SAP table PRU_2NDFL_FILE_OVERHEAD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRU_2NDFL_FILE_OVERHEAD table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to PRU_2NDFL_FILE_OVERHEAD. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the PRU_2NDFL_FILE_OVERHEAD table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_PRU_2NDFL_FILE_OVERHEAD TYPE STANDARD TABLE OF PRU_2NDFL_FILE_OVERHEAD,
      WA_PRU_2NDFL_FILE_OVERHEAD TYPE PRU_2NDFL_FILE_OVERHEAD,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <PRU_2NDFL_FILE_OVERHEAD> TYPE PRU_2NDFL_FILE_OVERHEAD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRU_2NDFL_FILE_OVERHEAD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRU_2NDFL_FILE_OVERHEAD
  INTO TABLE IT_PRU_2NDFL_FILE_OVERHEAD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRU_2NDFL_FILE_OVERHEAD
*  INTO TABLE @DATA(IT_PRU_2NDFL_FILE_OVERHEAD2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_PRU_2NDFL_FILE_OVERHEAD INDEX 1 INTO DATA(WA_PRU_2NDFL_FILE_OVERHEAD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRU_2NDFL_FILE_OVERHEAD ASSIGNING <PRU_2NDFL_FILE_OVERHEAD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRU_2NDFL_FILE_OVERHEAD>-GUID = 1.
<PRU_2NDFL_FILE_OVERHEAD>-N_DSOST = 1.
<PRU_2NDFL_FILE_OVERHEAD>-FILEID = 1.
<PRU_2NDFL_FILE_OVERHEAD>-XMLNS = 1.
<PRU_2NDFL_FILE_OVERHEAD>-INFTY = 1.

ENDLOOP.

LOOP AT IT_PRU_2NDFL_FILE_OVERHEAD INTO WA_PRU_2NDFL_FILE_OVERHEAD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRU_2NDFL_FILE_OVERHEAD-FVERS, sy-vline,
  WA_PRU_2NDFL_FILE_OVERHEAD-IMNS, sy-vline,
  WA_PRU_2NDFL_FILE_OVERHEAD-PRGVR, sy-vline,
  WA_PRU_2NDFL_FILE_OVERHEAD-NAMEORG, sy-vline,
  WA_PRU_2NDFL_FILE_OVERHEAD-INN, sy-vline,
  WA_PRU_2NDFL_FILE_OVERHEAD-KPP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRU_2NDFL_FILE_OVERHEAD you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_PRU_2NDFL_FILE_OVERHEAD TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_PRU_2NDFL_FILE_OVERHEAD INTO WA_PRU_2NDFL_FILE_OVERHEAD.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PRU_2NDFL_FILE_OVERHEAD_STR, 
GUID TYPE STRING,
N_DSOST TYPE STRING,
FILEID TYPE STRING,
XMLNS TYPE STRING,
INFTY TYPE STRING,
FVERS TYPE STRING,
IMNS TYPE STRING,
PRGVR TYPE STRING,
NAMEORG TYPE STRING,
INN TYPE STRING,
KPP TYPE STRING,
C_TELEFON TYPE STRING,
ND1_982 TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
MIDNM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRU_2NDFL_FILE_OVERHEAD_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_PRU_2NDFL_FILE_OVERHEAD_STR-GUID sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-N_DSOST sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-FILEID sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-XMLNS sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-INFTY sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-FVERS sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-IMNS sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-PRGVR sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-NAMEORG sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-INN sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-KPP sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-C_TELEFON sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-ND1_982 sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-NACHN sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-VORNA sy-vline 
WA_PRU_2NDFL_FILE_OVERHEAD_STR-MIDNM sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.