ABAP Select data from SAP table KBLDVA into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KBLDVA 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 KBLDVA. 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 KBLDVA 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_KBLDVA TYPE STANDARD TABLE OF KBLDVA,
      WA_KBLDVA TYPE KBLDVA,
      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: <KBLDVA> TYPE KBLDVA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KBLDVA
*  INTO TABLE @DATA(IT_KBLDVA2).
*--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_KBLDVA INDEX 1 INTO DATA(WA_KBLDVA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KBLDVA>-STATUS = 1.
<KBLDVA>-ACTION = 1.
<KBLDVA>-BELNR = 1.
<KBLDVA>-BLPOS = 1.
<KBLDVA>-BPENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KBLDVA-BLART, sy-vline,
  WA_KBLDVA-BLTYP, sy-vline,
  WA_KBLDVA-XPLUS, sy-vline,
  WA_KBLDVA-XMINUS, sy-vline,
  WA_KBLDVA-PMBLDAT, sy-vline,
  WA_KBLDVA-BTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KBLDVA 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_KBLDVA 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_KBLDVA INTO WA_KBLDVA.


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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_KBLDVA-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBLDVA-FIPOS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ABPSN, internal->external for field PS_POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_KBLDVA-PS_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBLDVA-PS_POSID.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_KBLDVA-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBLDVA-VORNR.
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_KBLDVA_STR, 
STATUS TYPE STRING,
ACTION TYPE STRING,
BELNR TYPE STRING,
BLPOS TYPE STRING,
BPENT TYPE STRING,
BLART TYPE STRING,
BLTYP TYPE STRING,
XPLUS TYPE STRING,
XMINUS TYPE STRING,
PMBLDAT TYPE STRING,
BTEXT TYPE STRING,
WTSUPP TYPE STRING,
HWSUPP TYPE STRING,
APPSTATUS TYPE STRING,
SUPPAPP TYPE STRING,
PMREASON TYPE STRING,
PMLOCK TYPE STRING,
WAERS TYPE STRING,
HWAER TYPE STRING,
SUPPTYPE TYPE STRING,
APPROVALSTATE TYPE STRING,
EF_GROUP_NUMBER TYPE STRING,
WTORIG TYPE STRING,
WTGES TYPE STRING,
WTFREE TYPE STRING,
DELTAWTAPP TYPE STRING,
FDATK TYPE STRING,
HWORIG TYPE STRING,
HWGES TYPE STRING,
DELTAHWAPP TYPE STRING,
HWFREE TYPE STRING,
HWREVAL TYPE STRING,
HWREVALAPP TYPE STRING,
FIPOS TYPE STRING,
FISTL TYPE STRING,
BUDGET_PD TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
MATNR TYPE STRING,
GSBER TYPE STRING,
PS_POSID TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KBLDVA_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_KBLDVA_STR-STATUS sy-vline 
WA_KBLDVA_STR-ACTION sy-vline 
WA_KBLDVA_STR-BELNR sy-vline 
WA_KBLDVA_STR-BLPOS sy-vline 
WA_KBLDVA_STR-BPENT sy-vline 
WA_KBLDVA_STR-BLART sy-vline 
WA_KBLDVA_STR-BLTYP sy-vline 
WA_KBLDVA_STR-XPLUS sy-vline 
WA_KBLDVA_STR-XMINUS sy-vline 
WA_KBLDVA_STR-PMBLDAT sy-vline 
WA_KBLDVA_STR-BTEXT sy-vline 
WA_KBLDVA_STR-WTSUPP sy-vline 
WA_KBLDVA_STR-HWSUPP sy-vline 
WA_KBLDVA_STR-APPSTATUS sy-vline 
WA_KBLDVA_STR-SUPPAPP sy-vline 
WA_KBLDVA_STR-PMREASON sy-vline 
WA_KBLDVA_STR-PMLOCK sy-vline 
WA_KBLDVA_STR-WAERS sy-vline 
WA_KBLDVA_STR-HWAER sy-vline 
WA_KBLDVA_STR-SUPPTYPE sy-vline 
WA_KBLDVA_STR-APPROVALSTATE sy-vline 
WA_KBLDVA_STR-EF_GROUP_NUMBER sy-vline 
WA_KBLDVA_STR-WTORIG sy-vline 
WA_KBLDVA_STR-WTGES sy-vline 
WA_KBLDVA_STR-WTFREE sy-vline 
WA_KBLDVA_STR-DELTAWTAPP sy-vline 
WA_KBLDVA_STR-FDATK sy-vline 
WA_KBLDVA_STR-HWORIG sy-vline 
WA_KBLDVA_STR-HWGES sy-vline 
WA_KBLDVA_STR-DELTAHWAPP sy-vline 
WA_KBLDVA_STR-HWFREE sy-vline 
WA_KBLDVA_STR-HWREVAL sy-vline 
WA_KBLDVA_STR-HWREVALAPP sy-vline 
WA_KBLDVA_STR-FIPOS sy-vline 
WA_KBLDVA_STR-FISTL sy-vline 
WA_KBLDVA_STR-BUDGET_PD sy-vline 
WA_KBLDVA_STR-GEBER sy-vline 
WA_KBLDVA_STR-FKBER sy-vline 
WA_KBLDVA_STR-GRANT_NBR sy-vline 
WA_KBLDVA_STR-MATNR sy-vline 
WA_KBLDVA_STR-GSBER sy-vline 
WA_KBLDVA_STR-PS_POSID sy-vline 
WA_KBLDVA_STR-KOSTL sy-vline 
WA_KBLDVA_STR-AUFNR sy-vline 
WA_KBLDVA_STR-NPLNR sy-vline 
WA_KBLDVA_STR-VORNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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