ABAP Select data from SAP table KONDN_MAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KONDN_MAT
*  INTO TABLE @DATA(IT_KONDN_MAT2).
*--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_KONDN_MAT INDEX 1 INTO DATA(WA_KONDN_MAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KONDN_MAT>-MATNR = 1.
<KONDN_MAT>-MGLME = 1.
<KONDN_MAT>-MGEINHEIT = 1.
<KONDN_MAT>-KPOSN = 1.
<KONDN_MAT>-KNRMAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KONDN_MAT-NRMENGE, sy-vline,
  WA_KONDN_MAT-KNREZ, sy-vline,
  WA_KONDN_MAT-NRRUND, sy-vline,
  WA_KONDN_MAT-KNRDD, sy-vline,
  WA_KONDN_MAT-LSTANR, sy-vline,
  WA_KONDN_MAT-NRAB_KNUMH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KONDN_MAT 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_KONDN_MAT 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_KONDN_MAT INTO WA_KONDN_MAT.


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

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

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

*Conversion exit CUNIT, internal->external for field KNREZ
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KONDN_MAT-KNREZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONDN_MAT-KNREZ.
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_KONDN_MAT_STR, 
MATNR TYPE STRING,
MGLME TYPE STRING,
MGEINHEIT TYPE STRING,
KPOSN TYPE STRING,
KNRMAT TYPE STRING,
NRMENGE TYPE STRING,
KNREZ TYPE STRING,
NRRUND TYPE STRING,
KNRDD TYPE STRING,
LSTANR TYPE STRING,
NRAB_KNUMH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KONDN_MAT_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_KONDN_MAT_STR-MATNR sy-vline 
WA_KONDN_MAT_STR-MGLME sy-vline 
WA_KONDN_MAT_STR-MGEINHEIT sy-vline 
WA_KONDN_MAT_STR-KPOSN sy-vline 
WA_KONDN_MAT_STR-KNRMAT sy-vline 
WA_KONDN_MAT_STR-NRMENGE sy-vline 
WA_KONDN_MAT_STR-KNREZ sy-vline 
WA_KONDN_MAT_STR-NRRUND sy-vline 
WA_KONDN_MAT_STR-KNRDD sy-vline 
WA_KONDN_MAT_STR-LSTANR sy-vline 
WA_KONDN_MAT_STR-NRAB_KNUMH sy-vline      INTO ld_text SEPARATED BY SPACE.

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