ABAP Select data from SAP table WBDRSCALE_PDF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBDRSCALE_PDF
*  INTO TABLE @DATA(IT_WBDRSCALE_PDF2).
*--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_WBDRSCALE_PDF INDEX 1 INTO DATA(WA_WBDRSCALE_PDF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBDRSCALE_PDF>-KLFN1 = 1.
<WBDRSCALE_PDF>-STFKZ_TXT = 1.
<WBDRSCALE_PDF>-SCALE_BASE = 1.
<WBDRSCALE_PDF>-SCALE_BASE_UNIT = 1.
<WBDRSCALE_PDF>-KSTBW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBDRSCALE_PDF-KSTBWEIN, sy-vline,
  WA_WBDRSCALE_PDF-KSTBWEI1, sy-vline,
  WA_WBDRSCALE_PDF-KSTBM, sy-vline,
  WA_WBDRSCALE_PDF-KSTBMEIN, sy-vline,
  WA_WBDRSCALE_PDF-KSTBMEI1, sy-vline,
  WA_WBDRSCALE_PDF-CONDITION_AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBDRSCALE_PDF 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_WBDRSCALE_PDF 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_WBDRSCALE_PDF INTO WA_WBDRSCALE_PDF.


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

*Conversion exit CUNIT, internal->external for field KSTBMEI1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBDRSCALE_PDF-KSTBMEI1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBDRSCALE_PDF-KSTBMEI1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBDRSCALE_PDF-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBDRSCALE_PDF-KMEIN.
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_WBDRSCALE_PDF_STR, 
KLFN1 TYPE STRING,
STFKZ_TXT TYPE STRING,
SCALE_BASE TYPE STRING,
SCALE_BASE_UNIT TYPE STRING,
KSTBW TYPE STRING,
KSTBWEIN TYPE STRING,
KSTBWEI1 TYPE STRING,
KSTBM TYPE STRING,
KSTBMEIN TYPE STRING,
KSTBMEI1 TYPE STRING,
CONDITION_AMOUNT TYPE STRING,
KBETR TYPE STRING,
KOEIN TYPE STRING,
KOEI1 TYPE STRING,
REL_TXT TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
SCALE_BASE_ACTUAL_CHAR TYPE STRING,
KSTBS TYPE STRING,
KSTBSEIN TYPE STRING,
KSTBSEI1 TYPE STRING,
CONDITION_BASE TYPE STRING,
KAWRT TYPE STRING,
AWEIN TYPE STRING,
AWEI1 TYPE STRING,
KWERT TYPE STRING,
KWERTEIN TYPE STRING,
KWERTEI1 TYPE STRING,
KRECH TYPE STRING,
KZBZG TYPE STRING,
AMOUNT_SCALE TYPE STRING,
XGRADSCALE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBDRSCALE_PDF_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_WBDRSCALE_PDF_STR-KLFN1 sy-vline 
WA_WBDRSCALE_PDF_STR-STFKZ_TXT sy-vline 
WA_WBDRSCALE_PDF_STR-SCALE_BASE sy-vline 
WA_WBDRSCALE_PDF_STR-SCALE_BASE_UNIT sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBW sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBWEIN sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBWEI1 sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBM sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBMEIN sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBMEI1 sy-vline 
WA_WBDRSCALE_PDF_STR-CONDITION_AMOUNT sy-vline 
WA_WBDRSCALE_PDF_STR-KBETR sy-vline 
WA_WBDRSCALE_PDF_STR-KOEIN sy-vline 
WA_WBDRSCALE_PDF_STR-KOEI1 sy-vline 
WA_WBDRSCALE_PDF_STR-REL_TXT sy-vline 
WA_WBDRSCALE_PDF_STR-KPEIN sy-vline 
WA_WBDRSCALE_PDF_STR-KMEIN sy-vline 
WA_WBDRSCALE_PDF_STR-SCALE_BASE_ACTUAL_CHAR sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBS sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBSEIN sy-vline 
WA_WBDRSCALE_PDF_STR-KSTBSEI1 sy-vline 
WA_WBDRSCALE_PDF_STR-CONDITION_BASE sy-vline 
WA_WBDRSCALE_PDF_STR-KAWRT sy-vline 
WA_WBDRSCALE_PDF_STR-AWEIN sy-vline 
WA_WBDRSCALE_PDF_STR-AWEI1 sy-vline 
WA_WBDRSCALE_PDF_STR-KWERT sy-vline 
WA_WBDRSCALE_PDF_STR-KWERTEIN sy-vline 
WA_WBDRSCALE_PDF_STR-KWERTEI1 sy-vline 
WA_WBDRSCALE_PDF_STR-KRECH sy-vline 
WA_WBDRSCALE_PDF_STR-KZBZG sy-vline 
WA_WBDRSCALE_PDF_STR-AMOUNT_SCALE sy-vline 
WA_WBDRSCALE_PDF_STR-XGRADSCALE sy-vline      INTO ld_text SEPARATED BY SPACE.

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