ABAP Select data from SAP table TAX_MOSS_TOTAL_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TAX_MOSS_TOTAL_LIST
*  INTO TABLE @DATA(IT_TAX_MOSS_TOTAL_LIST2).
*--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_TAX_MOSS_TOTAL_LIST INDEX 1 INTO DATA(WA_TAX_MOSS_TOTAL_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TAX_MOSS_TOTAL_LIST>-BUKRS = 1.
<TAX_MOSS_TOTAL_LIST>-MWSKZ = 1.
<TAX_MOSS_TOTAL_LIST>-EGLLD = 1.
<TAX_MOSS_TOTAL_LIST>-EGBLD = 1.
<TAX_MOSS_TOTAL_LIST>-KTOSL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TAX_MOSS_TOTAL_LIST-KBETR, sy-vline,
  WA_TAX_MOSS_TOTAL_LIST-KBETRC, sy-vline,
  WA_TAX_MOSS_TOTAL_LIST-HKONT, sy-vline,
  WA_TAX_MOSS_TOTAL_LIST-HWBAS, sy-vline,
  WA_TAX_MOSS_TOTAL_LIST-HWSTE, sy-vline,
  WA_TAX_MOSS_TOTAL_LIST-HWAER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TAX_MOSS_TOTAL_LIST 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_TAX_MOSS_TOTAL_LIST 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_TAX_MOSS_TOTAL_LIST INTO WA_TAX_MOSS_TOTAL_LIST.


*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 AC112, internal->external for field KBETR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-KBETR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-KBETR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC152, internal->external for field HWBAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-HWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-HWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-HWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-HWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FWBAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-FWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-FWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field FWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-FWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-FWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field H2BAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-H2BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-H2BAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field H2STE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-H2STE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-H2STE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field H3BAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-H3BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-H3BAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field H3STE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-H3STE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-H3STE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field DECL_BAS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-DECL_BAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-DECL_BAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field DECL_TAX
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_TAX_MOSS_TOTAL_LIST-DECL_TAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TAX_MOSS_TOTAL_LIST-DECL_TAX.
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_TAX_MOSS_TOTAL_LIST_STR, 
BUKRS TYPE STRING,
MWSKZ TYPE STRING,
EGLLD TYPE STRING,
EGBLD TYPE STRING,
KTOSL TYPE STRING,
KBETR TYPE STRING,
KBETRC TYPE STRING,
HKONT TYPE STRING,
HWBAS TYPE STRING,
HWSTE TYPE STRING,
HWAER TYPE STRING,
FWBAS TYPE STRING,
FWSTE TYPE STRING,
WAERS TYPE STRING,
H2BAS TYPE STRING,
H2STE TYPE STRING,
HWAE2 TYPE STRING,
H3BAS TYPE STRING,
H3STE TYPE STRING,
HWAE3 TYPE STRING,
DECL_RATE_CUR TYPE STRING,
DECL_BAS TYPE STRING,
DECL_TAX TYPE STRING,
DECL_CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TAX_MOSS_TOTAL_LIST_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_TAX_MOSS_TOTAL_LIST_STR-BUKRS sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-MWSKZ sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-EGLLD sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-EGBLD sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-KTOSL sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-KBETR sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-KBETRC sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-HKONT sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-HWBAS sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-HWSTE sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-HWAER sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-FWBAS sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-FWSTE sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-WAERS sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-H2BAS sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-H2STE sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-HWAE2 sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-H3BAS sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-H3STE sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-HWAE3 sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-DECL_RATE_CUR sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-DECL_BAS sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-DECL_TAX sy-vline 
WA_TAX_MOSS_TOTAL_LIST_STR-DECL_CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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