ABAP Select data from SAP table ROIRI_MARG_ALV_DATES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIRI_MARG_ALV_DATES
*  INTO TABLE @DATA(IT_ROIRI_MARG_ALV_DATES2).
*--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_ROIRI_MARG_ALV_DATES INDEX 1 INTO DATA(WA_ROIRI_MARG_ALV_DATES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIRI_MARG_ALV_DATES>-PBLNR = 1.
<ROIRI_MARG_ALV_DATES>-NAME1 = 1.
<ROIRI_MARG_ALV_DATES>-MATNR = 1.
<ROIRI_MARG_ALV_DATES>-MAKTX = 1.
<ROIRI_MARG_ALV_DATES>-OISTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIRI_MARG_ALV_DATES-SPTAG, sy-vline,
  WA_ROIRI_MARG_ALV_DATES-SPMON, sy-vline,
  WA_ROIRI_MARG_ALV_DATES-SPWOC, sy-vline,
  WA_ROIRI_MARG_ALV_DATES-SPBUP, sy-vline,
  WA_ROIRI_MARG_ALV_DATES-DAY_WOTNR, sy-vline,
  WA_ROIRI_MARG_ALV_DATES-DAY_KURZT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIRI_MARG_ALV_DATES 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_ROIRI_MARG_ALV_DATES 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_ROIRI_MARG_ALV_DATES INTO WA_ROIRI_MARG_ALV_DATES.


*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 PBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIRI_MARG_ALV_DATES-PBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRI_MARG_ALV_DATES-PBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIRI_MARG_ALV_DATES-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRI_MARG_ALV_DATES-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_ROIRI_MARG_ALV_DATES-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRI_MARG_ALV_DATES-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_ROIRI_MARG_ALV_DATES-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRI_MARG_ALV_DATES-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_ROIRI_MARG_ALV_DATES-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRI_MARG_ALV_DATES-SPBUP.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIRI_MARG_ALV_DATES-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIRI_MARG_ALV_DATES-BASME.
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_ROIRI_MARG_ALV_DATES_STR, 
PBLNR TYPE STRING,
NAME1 TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
OISTYP TYPE STRING,
SPTAG TYPE STRING,
SPMON TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
DAY_WOTNR TYPE STRING,
DAY_KURZT TYPE STRING,
DAY_LANGT TYPE STRING,
WAERK TYPE STRING,
VRKME TYPE STRING,
BASME TYPE STRING,
OIRCOMMNET TYPE STRING,
OIRCOMMVAT TYPE STRING,
OIRPFEENET TYPE STRING,
OIRPFEEVAT TYPE STRING,
OIRFUGR TYPE STRING,
OIREBV TYPE STRING,
OIRFCFEES TYPE STRING,
OIRCHFEES TYPE STRING,
OIRFREIGHT TYPE STRING,
OIRPURPR TYPE STRING,
OIRFUNET TYPE STRING,
OIRFUVAT TYPE STRING,
FKIMG TYPE STRING,
FKLMG TYPE STRING,
PRICE TYPE STRING,
MARGIN1 TYPE STRING,
MARGIN2 TYPE STRING,
MARGIN3 TYPE STRING,
MARGIN4 TYPE STRING,
REL_MARGIN1 TYPE STRING,
REL_MARGIN2 TYPE STRING,
REL_MARGIN3 TYPE STRING,
REL_MARGIN4 TYPE STRING,
BASIS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIRI_MARG_ALV_DATES_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_ROIRI_MARG_ALV_DATES_STR-PBLNR sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-NAME1 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-MATNR sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-MAKTX sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OISTYP sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-SPTAG sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-SPMON sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-SPWOC sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-SPBUP sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-DAY_WOTNR sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-DAY_KURZT sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-DAY_LANGT sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-WAERK sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-VRKME sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-BASME sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRCOMMNET sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRCOMMVAT sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRPFEENET sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRPFEEVAT sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRFUGR sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIREBV sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRFCFEES sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRCHFEES sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRFREIGHT sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRPURPR sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRFUNET sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-OIRFUVAT sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-FKIMG sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-FKLMG sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-PRICE sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-MARGIN1 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-MARGIN2 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-MARGIN3 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-MARGIN4 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-REL_MARGIN1 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-REL_MARGIN2 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-REL_MARGIN3 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-REL_MARGIN4 sy-vline 
WA_ROIRI_MARG_ALV_DATES_STR-BASIS sy-vline      INTO ld_text SEPARATED BY SPACE.

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