ABAP Select data from SAP table KOND_ML into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOND_ML
*  INTO TABLE @DATA(IT_KOND_ML2).
*--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_KOND_ML INDEX 1 INTO DATA(WA_KOND_ML2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOND_ML>-INFNR = 1.
<KOND_ML>-EKORG = 1.
<KOND_ML>-ESOKZ = 1.
<KOND_ML>-WERKS = 1.
<KOND_ML>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOND_ML-MATKL, sy-vline,
  WA_KOND_ML-EFFPR, sy-vline,
  WA_KOND_ML-PEINH, sy-vline,
  WA_KOND_ML-WAERS, sy-vline,
  WA_KOND_ML-BPRME, sy-vline,
  WA_KOND_ML-EFFPM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOND_ML 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_KOND_ML 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_KOND_ML INTO WA_KOND_ML.


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

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

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KOND_ML-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOND_ML-BPRME.
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_KOND_ML_STR, 
INFNR TYPE STRING,
EKORG TYPE STRING,
ESOKZ TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
EFFPR TYPE STRING,
PEINH TYPE STRING,
WAERS TYPE STRING,
BPRME TYPE STRING,
EFFPM TYPE STRING,
HERMP TYPE STRING,
HEREP TYPE STRING,
SINGL TYPE STRING,
PNBEW TYPE STRING,
QMPUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOND_ML_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_KOND_ML_STR-INFNR sy-vline 
WA_KOND_ML_STR-EKORG sy-vline 
WA_KOND_ML_STR-ESOKZ sy-vline 
WA_KOND_ML_STR-WERKS sy-vline 
WA_KOND_ML_STR-MATNR sy-vline 
WA_KOND_ML_STR-MATKL sy-vline 
WA_KOND_ML_STR-EFFPR sy-vline 
WA_KOND_ML_STR-PEINH sy-vline 
WA_KOND_ML_STR-WAERS sy-vline 
WA_KOND_ML_STR-BPRME sy-vline 
WA_KOND_ML_STR-EFFPM sy-vline 
WA_KOND_ML_STR-HERMP sy-vline 
WA_KOND_ML_STR-HEREP sy-vline 
WA_KOND_ML_STR-SINGL sy-vline 
WA_KOND_ML_STR-PNBEW sy-vline 
WA_KOND_ML_STR-QMPUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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