ABAP Select data from SAP table /SMISU/BTX_DUNNING_HISTORY_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SMISU/BTX_DUNNING_HISTORY_STR 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 /SMISU/BTX_DUNNING_HISTORY_STR. 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 /SMISU/BTX_DUNNING_HISTORY_STR 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_/SMISU/BTX_DUNNING_HISTORY_STR TYPE STANDARD TABLE OF /SMISU/BTX_DUNNING_HISTORY_STR,
      WA_/SMISU/BTX_DUNNING_HISTORY_STR TYPE /SMISU/BTX_DUNNING_HISTORY_STR,
      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: </SMISU/BTX_DUNNING_HISTORY_STR> TYPE /SMISU/BTX_DUNNING_HISTORY_STR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SMISU/BTX_DUNNING_HISTORY_STR
  INTO TABLE IT_/SMISU/BTX_DUNNING_HISTORY_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SMISU/BTX_DUNNING_HISTORY_STR
*  INTO TABLE @DATA(IT_/SMISU/BTX_DUNNING_HISTORY_STR2).
*--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_/SMISU/BTX_DUNNING_HISTORY_STR INDEX 1 INTO DATA(WA_/SMISU/BTX_DUNNING_HISTORY_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SMISU/BTX_DUNNING_HISTORY_STR ASSIGNING </SMISU/BTX_DUNNING_HISTORY_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SMISU/BTX_DUNNING_HISTORY_STR>-MANDT = 1.
</SMISU/BTX_DUNNING_HISTORY_STR>-LAUFD = 1.
</SMISU/BTX_DUNNING_HISTORY_STR>-LAUFI = 1.
</SMISU/BTX_DUNNING_HISTORY_STR>-GPART = 1.
</SMISU/BTX_DUNNING_HISTORY_STR>-VKONT = 1.

ENDLOOP.

LOOP AT IT_/SMISU/BTX_DUNNING_HISTORY_STR INTO WA_/SMISU/BTX_DUNNING_HISTORY_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SMISU/BTX_DUNNING_HISTORY_STR-MAZAE, sy-vline,
  WA_/SMISU/BTX_DUNNING_HISTORY_STR-OPBEL, sy-vline,
  WA_/SMISU/BTX_DUNNING_HISTORY_STR-OPUPW, sy-vline,
  WA_/SMISU/BTX_DUNNING_HISTORY_STR-OPUPK, sy-vline,
  WA_/SMISU/BTX_DUNNING_HISTORY_STR-OPUPZ, sy-vline,
  WA_/SMISU/BTX_DUNNING_HISTORY_STR-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SMISU/BTX_DUNNING_HISTORY_STR 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_/SMISU/BTX_DUNNING_HISTORY_STR 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_/SMISU/BTX_DUNNING_HISTORY_STR INTO WA_/SMISU/BTX_DUNNING_HISTORY_STR.


*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_/SMISU/BTX_DUNNING_HISTORY_STR-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SMISU/BTX_DUNNING_HISTORY_STR-GPART.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SMISU/BTX_DUNNING_HISTORY_STR-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SMISU/BTX_DUNNING_HISTORY_STR-PRCTR.
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_/SMISU/BTX_DUNNING_HISTORY_STR_STR, 
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
MAZAE TYPE STRING,
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
MBETM TYPE STRING,
MBETH TYPE STRING,
FAEDN TYPE STRING,
MIBEL TYPE STRING,
MINTM TYPE STRING,
MAHNS TYPE STRING,
MSTYP TYPE STRING,
MAHNN TYPE STRING,
MANSP TYPE STRING,
XMFAK TYPE STRING,
XMSUS TYPE STRING,
XMSTO TYPE STRING,
XINFO TYPE STRING,
MDRKD TYPE STRING,
STAKZ TYPE STRING,
XMVKT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
MAHNV TYPE STRING,
AUSDT TYPE STRING,
SPART TYPE STRING,
XTAUS TYPE STRING,
MOPUPZ TYPE STRING,
HIGHERDL TYPE STRING,
DALIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SMISU/BTX_DUNNING_HISTORY_STR_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_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MANDT sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-LAUFD sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-LAUFI sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-GPART sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-VKONT sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MAZAE sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-OPBEL sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-OPUPW sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-OPUPK sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-OPUPZ sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-BUKRS sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-WAERS sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MBETM sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MBETH sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-FAEDN sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MIBEL sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MINTM sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MAHNS sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MSTYP sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MAHNN sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MANSP sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-XMFAK sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-XMSUS sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-XMSTO sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-XINFO sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MDRKD sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-STAKZ sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-XMVKT sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-VTREF sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-SUBAP sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-SEGMENT sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-PRCTR sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MAHNV sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-AUSDT sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-SPART sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-XTAUS sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-MOPUPZ sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-HIGHERDL sy-vline 
WA_/SMISU/BTX_DUNNING_HISTORY_STR_STR-DALIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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