ABAP Select data from SAP table ROIGASHV_ALV10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIGASHV_ALV10 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 ROIGASHV_ALV10. 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 ROIGASHV_ALV10 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_ROIGASHV_ALV10 TYPE STANDARD TABLE OF ROIGASHV_ALV10,
      WA_ROIGASHV_ALV10 TYPE ROIGASHV_ALV10,
      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: <ROIGASHV_ALV10> TYPE ROIGASHV_ALV10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROIGASHV_ALV10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROIGASHV_ALV10
  INTO TABLE IT_ROIGASHV_ALV10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIGASHV_ALV10
*  INTO TABLE @DATA(IT_ROIGASHV_ALV102).
*--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_ROIGASHV_ALV10 INDEX 1 INTO DATA(WA_ROIGASHV_ALV102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIGASHV_ALV10 ASSIGNING <ROIGASHV_ALV10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIGASHV_ALV10>-VEHICLE = 1.
<ROIGASHV_ALV10>-ROUTE = 1.
<ROIGASHV_ALV10>-TSRFO = 1.
<ROIGASHV_ALV10>-TSTYP = 1.
<ROIGASHV_ALV10>-VSART = 1.

ENDLOOP.

LOOP AT IT_ROIGASHV_ALV10 INTO WA_ROIGASHV_ALV10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIGASHV_ALV10-KNOTA, sy-vline,
  WA_ROIGASHV_ALV10-KNOTZ, sy-vline,
  WA_ROIGASHV_ALV10-DISTZ, sy-vline,
  WA_ROIGASHV_ALV10-MEDST, sy-vline,
  WA_ROIGASHV_ALV10-GESZTD, sy-vline,
  WA_ROIGASHV_ALV10-FAHZTD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIGASHV_ALV10 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_ROIGASHV_ALV10 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_ROIGASHV_ALV10 INTO WA_ROIGASHV_ALV10.


*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.

*Conversion exit ALPHA, internal->external for field VEHICLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIGASHV_ALV10-VEHICLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIGASHV_ALV10-VEHICLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEDST
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIGASHV_ALV10-MEDST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIGASHV_ALV10-MEDST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field GESZTD
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_ROIGASHV_ALV10-GESZTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIGASHV_ALV10-GESZTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRN, internal->external for field FAHZTD
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_ROIGASHV_ALV10-FAHZTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIGASHV_ALV10-FAHZTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field GESZTDA
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_ROIGASHV_ALV10-GESZTDA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIGASHV_ALV10-GESZTDA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRN, internal->external for field FAHZTDA
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_ROIGASHV_ALV10-FAHZTDA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIGASHV_ALV10-FAHZTDA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_ROIGASHV_ALV10-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIGASHV_ALV10-PARVW.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_ROIGASHV_ALV10_STR, 
VEHICLE TYPE STRING,
ROUTE TYPE STRING,
TSRFO TYPE STRING,
TSTYP TYPE STRING,
VSART TYPE STRING,
KNOTA TYPE STRING,
KNOTZ TYPE STRING,
DISTZ TYPE STRING,
MEDST TYPE STRING,
GESZTD TYPE STRING,
FAHZTD TYPE STRING,
GESZTDA TYPE STRING,
FAHZTDA TYPE STRING,
SERV_AGENT TYPE STRING,
PARVW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIGASHV_ALV10_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_ROIGASHV_ALV10_STR-VEHICLE sy-vline 
WA_ROIGASHV_ALV10_STR-ROUTE sy-vline 
WA_ROIGASHV_ALV10_STR-TSRFO sy-vline 
WA_ROIGASHV_ALV10_STR-TSTYP sy-vline 
WA_ROIGASHV_ALV10_STR-VSART sy-vline 
WA_ROIGASHV_ALV10_STR-KNOTA sy-vline 
WA_ROIGASHV_ALV10_STR-KNOTZ sy-vline 
WA_ROIGASHV_ALV10_STR-DISTZ sy-vline 
WA_ROIGASHV_ALV10_STR-MEDST sy-vline 
WA_ROIGASHV_ALV10_STR-GESZTD sy-vline 
WA_ROIGASHV_ALV10_STR-FAHZTD sy-vline 
WA_ROIGASHV_ALV10_STR-GESZTDA sy-vline 
WA_ROIGASHV_ALV10_STR-FAHZTDA sy-vline 
WA_ROIGASHV_ALV10_STR-SERV_AGENT sy-vline 
WA_ROIGASHV_ALV10_STR-PARVW sy-vline      INTO ld_text SEPARATED BY SPACE.

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