ABAP Select data from SAP table KOMPBV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KOMPBV1 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 KOMPBV1. 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 KOMPBV1 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_KOMPBV1 TYPE STANDARD TABLE OF KOMPBV1,
      WA_KOMPBV1 TYPE KOMPBV1,
      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: <KOMPBV1> TYPE KOMPBV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KOMPBV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KOMPBV1
  INTO TABLE IT_KOMPBV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOMPBV1
*  INTO TABLE @DATA(IT_KOMPBV12).
*--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_KOMPBV1 INDEX 1 INTO DATA(WA_KOMPBV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KOMPBV1 ASSIGNING <KOMPBV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOMPBV1>-POSNR = 1.
<KOMPBV1>-MATNR = 1.
<KOMPBV1>-MATWA = 1.
<KOMPBV1>-PMATN = 1.
<KOMPBV1>-CHARG = 1.

ENDLOOP.

LOOP AT IT_KOMPBV1 INTO WA_KOMPBV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOMPBV1-MATKL, sy-vline,
  WA_KOMPBV1-PSTYV, sy-vline,
  WA_KOMPBV1-POSAR, sy-vline,
  WA_KOMPBV1-LFREL, sy-vline,
  WA_KOMPBV1-ABGRU, sy-vline,
  WA_KOMPBV1-PRODH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOMPBV1 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_KOMPBV1 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_KOMPBV1 INTO WA_KOMPBV1.


*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_KOMPBV1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATWA
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-MATWA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-MATWA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-PMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-PMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ZIEME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-ZIEME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-ZIEME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMPBV1-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMPBV1-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_KOMPBV1_STR, 
POSNR TYPE STRING,
MATNR TYPE STRING,
MATWA TYPE STRING,
PMATN TYPE STRING,
CHARG TYPE STRING,
MATKL TYPE STRING,
PSTYV TYPE STRING,
POSAR TYPE STRING,
LFREL TYPE STRING,
ABGRU TYPE STRING,
PRODH TYPE STRING,
ZWERT TYPE STRING,
ZMENG TYPE STRING,
ZIEME TYPE STRING,
KDMAT TYPE STRING,
FMENG TYPE STRING,
UEBTK TYPE STRING,
UEBTO TYPE STRING,
UNTTO TYPE STRING,
FAKSP TYPE STRING,
ATPKZ TYPE STRING,
SPART TYPE STRING,
GSBER TYPE STRING,
NETWR TYPE STRING,
ANTLF TYPE STRING,
KZTLF TYPE STRING,
CHSPL TYPE STRING,
KWMENG TYPE STRING,
LSMENG TYPE STRING,
KBMENG TYPE STRING,
VRKME TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
LPRIO TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
VSTEL TYPE STRING,
ROUTE TYPE STRING,
AWAHR TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
TAXM1 TYPE STRING,
TAXM2 TYPE STRING,
TAXM3 TYPE STRING,
TAXM4 TYPE STRING,
TAXM5 TYPE STRING,
TAXM6 TYPE STRING,
TAXM7 TYPE STRING,
TAXM8 TYPE STRING,
TAXM9 TYPE STRING,
NETPR TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
SHKZG TYPE STRING,
SKTOF TYPE STRING,
KONDM TYPE STRING,
KTGRM TYPE STRING,
BONUS TYPE STRING,
PROVG TYPE STRING,
EAN11 TYPE STRING,
BWTAR TYPE STRING,
BWTEX TYPE STRING,
KZWI1 TYPE STRING,
KZWI2 TYPE STRING,
KZWI3 TYPE STRING,
KZWI4 TYPE STRING,
KZWI5 TYPE STRING,
KZWI6 TYPE STRING,
FIXMG TYPE STRING,
PRCTR TYPE STRING,
MVGR1 TYPE STRING,
MVGR2 TYPE STRING,
MVGR3 TYPE STRING,
MVGR4 TYPE STRING,
MVGR5 TYPE STRING,
SUGRD TYPE STRING,
KONDA TYPE STRING,
KDGRP TYPE STRING,
BZIRK TYPE STRING,
PLTYP TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
ZTERM TYPE STRING,
UVALL TYPE STRING,
UVVLK TYPE STRING,
UVFAK TYPE STRING,
UVPRS TYPE STRING,
DUMMY TYPE STRING,
ETI01 TYPE STRING,
ETI02 TYPE STRING,
KZUMW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOMPBV1_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_KOMPBV1_STR-POSNR sy-vline 
WA_KOMPBV1_STR-MATNR sy-vline 
WA_KOMPBV1_STR-MATWA sy-vline 
WA_KOMPBV1_STR-PMATN sy-vline 
WA_KOMPBV1_STR-CHARG sy-vline 
WA_KOMPBV1_STR-MATKL sy-vline 
WA_KOMPBV1_STR-PSTYV sy-vline 
WA_KOMPBV1_STR-POSAR sy-vline 
WA_KOMPBV1_STR-LFREL sy-vline 
WA_KOMPBV1_STR-ABGRU sy-vline 
WA_KOMPBV1_STR-PRODH sy-vline 
WA_KOMPBV1_STR-ZWERT sy-vline 
WA_KOMPBV1_STR-ZMENG sy-vline 
WA_KOMPBV1_STR-ZIEME sy-vline 
WA_KOMPBV1_STR-KDMAT sy-vline 
WA_KOMPBV1_STR-FMENG sy-vline 
WA_KOMPBV1_STR-UEBTK sy-vline 
WA_KOMPBV1_STR-UEBTO sy-vline 
WA_KOMPBV1_STR-UNTTO sy-vline 
WA_KOMPBV1_STR-FAKSP sy-vline 
WA_KOMPBV1_STR-ATPKZ sy-vline 
WA_KOMPBV1_STR-SPART sy-vline 
WA_KOMPBV1_STR-GSBER sy-vline 
WA_KOMPBV1_STR-NETWR sy-vline 
WA_KOMPBV1_STR-ANTLF sy-vline 
WA_KOMPBV1_STR-KZTLF sy-vline 
WA_KOMPBV1_STR-CHSPL sy-vline 
WA_KOMPBV1_STR-KWMENG sy-vline 
WA_KOMPBV1_STR-LSMENG sy-vline 
WA_KOMPBV1_STR-KBMENG sy-vline 
WA_KOMPBV1_STR-VRKME sy-vline 
WA_KOMPBV1_STR-BRGEW sy-vline 
WA_KOMPBV1_STR-NTGEW sy-vline 
WA_KOMPBV1_STR-GEWEI sy-vline 
WA_KOMPBV1_STR-VOLUM sy-vline 
WA_KOMPBV1_STR-VOLEH sy-vline 
WA_KOMPBV1_STR-LPRIO sy-vline 
WA_KOMPBV1_STR-WERKS sy-vline 
WA_KOMPBV1_STR-LGORT sy-vline 
WA_KOMPBV1_STR-VSTEL sy-vline 
WA_KOMPBV1_STR-ROUTE sy-vline 
WA_KOMPBV1_STR-AWAHR sy-vline 
WA_KOMPBV1_STR-ERNAM sy-vline 
WA_KOMPBV1_STR-ERDAT sy-vline 
WA_KOMPBV1_STR-ERZET sy-vline 
WA_KOMPBV1_STR-TAXM1 sy-vline 
WA_KOMPBV1_STR-TAXM2 sy-vline 
WA_KOMPBV1_STR-TAXM3 sy-vline 
WA_KOMPBV1_STR-TAXM4 sy-vline 
WA_KOMPBV1_STR-TAXM5 sy-vline 
WA_KOMPBV1_STR-TAXM6 sy-vline 
WA_KOMPBV1_STR-TAXM7 sy-vline 
WA_KOMPBV1_STR-TAXM8 sy-vline 
WA_KOMPBV1_STR-TAXM9 sy-vline 
WA_KOMPBV1_STR-NETPR sy-vline 
WA_KOMPBV1_STR-KPEIN sy-vline 
WA_KOMPBV1_STR-KMEIN sy-vline 
WA_KOMPBV1_STR-SHKZG sy-vline 
WA_KOMPBV1_STR-SKTOF sy-vline 
WA_KOMPBV1_STR-KONDM sy-vline 
WA_KOMPBV1_STR-KTGRM sy-vline 
WA_KOMPBV1_STR-BONUS sy-vline 
WA_KOMPBV1_STR-PROVG sy-vline 
WA_KOMPBV1_STR-EAN11 sy-vline 
WA_KOMPBV1_STR-BWTAR sy-vline 
WA_KOMPBV1_STR-BWTEX sy-vline 
WA_KOMPBV1_STR-KZWI1 sy-vline 
WA_KOMPBV1_STR-KZWI2 sy-vline 
WA_KOMPBV1_STR-KZWI3 sy-vline 
WA_KOMPBV1_STR-KZWI4 sy-vline 
WA_KOMPBV1_STR-KZWI5 sy-vline 
WA_KOMPBV1_STR-KZWI6 sy-vline 
WA_KOMPBV1_STR-FIXMG sy-vline 
WA_KOMPBV1_STR-PRCTR sy-vline 
WA_KOMPBV1_STR-MVGR1 sy-vline 
WA_KOMPBV1_STR-MVGR2 sy-vline 
WA_KOMPBV1_STR-MVGR3 sy-vline 
WA_KOMPBV1_STR-MVGR4 sy-vline 
WA_KOMPBV1_STR-MVGR5 sy-vline 
WA_KOMPBV1_STR-SUGRD sy-vline 
WA_KOMPBV1_STR-KONDA sy-vline 
WA_KOMPBV1_STR-KDGRP sy-vline 
WA_KOMPBV1_STR-BZIRK sy-vline 
WA_KOMPBV1_STR-PLTYP sy-vline 
WA_KOMPBV1_STR-INCO1 sy-vline 
WA_KOMPBV1_STR-INCO2 sy-vline 
WA_KOMPBV1_STR-ZTERM sy-vline 
WA_KOMPBV1_STR-UVALL sy-vline 
WA_KOMPBV1_STR-UVVLK sy-vline 
WA_KOMPBV1_STR-UVFAK sy-vline 
WA_KOMPBV1_STR-UVPRS sy-vline 
WA_KOMPBV1_STR-DUMMY sy-vline 
WA_KOMPBV1_STR-ETI01 sy-vline 
WA_KOMPBV1_STR-ETI02 sy-vline 
WA_KOMPBV1_STR-KZUMW sy-vline      INTO ld_text SEPARATED BY SPACE.

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