ABAP Select data from SAP table ISISCD_DUNNING_STR_DUNN_EURO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISISCD_DUNNING_STR_DUNN_EURO
*  INTO TABLE @DATA(IT_ISISCD_DUNNING_STR_DUNN_EURO2).
*--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_ISISCD_DUNNING_STR_DUNN_EURO INDEX 1 INTO DATA(WA_ISISCD_DUNNING_STR_DUNN_EURO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISISCD_DUNNING_STR_DUNN_EURO>-WA_DUNN_EURO = 1.
<ISISCD_DUNNING_STR_DUNN_EURO>-MANDT = 1.
<ISISCD_DUNNING_STR_DUNN_EURO>-LAUFD = 1.
<ISISCD_DUNNING_STR_DUNN_EURO>-LAUFI = 1.
<ISISCD_DUNNING_STR_DUNN_EURO>-COKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISISCD_DUNNING_STR_DUNN_EURO-COTYP, sy-vline,
  WA_ISISCD_DUNNING_STR_DUNN_EURO-AUSDT, sy-vline,
  WA_ISISCD_DUNNING_STR_DUNN_EURO-GPART, sy-vline,
  WA_ISISCD_DUNNING_STR_DUNN_EURO-VKONT, sy-vline,
  WA_ISISCD_DUNNING_STR_DUNN_EURO-VTREF, sy-vline,
  WA_ISISCD_DUNNING_STR_DUNN_EURO-SUBAP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISISCD_DUNNING_STR_DUNN_EURO 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_ISISCD_DUNNING_STR_DUNN_EURO 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_ISISCD_DUNNING_STR_DUNN_EURO INTO WA_ISISCD_DUNNING_STR_DUNN_EURO.


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

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

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

*Conversion exit ALPHA, internal->external for field MG1BL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISISCD_DUNNING_STR_DUNN_EURO-MG1BL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISISCD_DUNNING_STR_DUNN_EURO-MG1BL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MG2BL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISISCD_DUNNING_STR_DUNN_EURO-MG2BL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISISCD_DUNNING_STR_DUNN_EURO-MG2BL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MG3BL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISISCD_DUNNING_STR_DUNN_EURO-MG3BL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISISCD_DUNNING_STR_DUNN_EURO-MG3BL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NRZAS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISISCD_DUNNING_STR_DUNN_EURO-NRZAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISISCD_DUNNING_STR_DUNN_EURO-NRZAS.
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_ISISCD_DUNNING_STR_DUNN_EURO_STR, 
WA_DUNN_EURO TYPE STRING,
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
COKEY TYPE STRING,
COTYP TYPE STRING,
AUSDT TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
MAHNV TYPE STRING,
MAHNS TYPE STRING,
CHGID TYPE STRING,
MGE1M TYPE STRING,
MG1BL TYPE STRING,
MG1TY TYPE STRING,
MGE2M TYPE STRING,
MG2BL TYPE STRING,
MG2TY TYPE STRING,
MGE3M TYPE STRING,
MG3BL TYPE STRING,
MG3TY TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
FAEDN TYPE STRING,
NRZAS TYPE STRING,
XMSTO TYPE STRING,
MSALM TYPE STRING,
MDRKDC TYPE STRING,
XERIN TYPE STRING,
MAHNN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISISCD_DUNNING_STR_DUNN_EURO_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_ISISCD_DUNNING_STR_DUNN_EURO_STR-WA_DUNN_EURO sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MANDT sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-LAUFD sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-LAUFI sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-COKEY sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-COTYP sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-AUSDT sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-GPART sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-VKONT sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-VTREF sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-SUBAP sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MAHNV sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MAHNS sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-CHGID sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MGE1M sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MG1BL sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MG1TY sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MGE2M sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MG2BL sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MG2TY sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MGE3M sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MG3BL sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MG3TY sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-BUKRS sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-WAERS sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-FAEDN sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-NRZAS sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-XMSTO sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MSALM sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MDRKDC sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-XERIN sy-vline 
WA_ISISCD_DUNNING_STR_DUNN_EURO_STR-MAHNN sy-vline      INTO ld_text SEPARATED BY SPACE.

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