ABAP Select data from SAP table /SAPPSPRO/S_KBLK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPPSPRO/S_KBLK 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 /SAPPSPRO/S_KBLK. 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 /SAPPSPRO/S_KBLK 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_/SAPPSPRO/S_KBLK TYPE STANDARD TABLE OF /SAPPSPRO/S_KBLK,
      WA_/SAPPSPRO/S_KBLK TYPE /SAPPSPRO/S_KBLK,
      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: </SAPPSPRO/S_KBLK> TYPE /SAPPSPRO/S_KBLK.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPPSPRO/S_KBLK
  INTO TABLE IT_/SAPPSPRO/S_KBLK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPPSPRO/S_KBLK
*  INTO TABLE @DATA(IT_/SAPPSPRO/S_KBLK2).
*--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_/SAPPSPRO/S_KBLK INDEX 1 INTO DATA(WA_/SAPPSPRO/S_KBLK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPPSPRO/S_KBLK ASSIGNING </SAPPSPRO/S_KBLK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPPSPRO/S_KBLK>-MANDT = 1.
</SAPPSPRO/S_KBLK>-BELNR = 1.
</SAPPSPRO/S_KBLK>-KVRGNG = 1.
</SAPPSPRO/S_KBLK>-KERFAS = 1.
</SAPPSPRO/S_KBLK>-KERDAT = 1.

ENDLOOP.

LOOP AT IT_/SAPPSPRO/S_KBLK INTO WA_/SAPPSPRO/S_KBLK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPPSPRO/S_KBLK-KAENDE, sy-vline,
  WA_/SAPPSPRO/S_KBLK-KAEDAT, sy-vline,
  WA_/SAPPSPRO/S_KBLK-BLDAT, sy-vline,
  WA_/SAPPSPRO/S_KBLK-KTEXT, sy-vline,
  WA_/SAPPSPRO/S_KBLK-BLART, sy-vline,
  WA_/SAPPSPRO/S_KBLK-BLTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPPSPRO/S_KBLK 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_/SAPPSPRO/S_KBLK 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_/SAPPSPRO/S_KBLK INTO WA_/SAPPSPRO/S_KBLK.


*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_/SAPPSPRO/S_KBLK-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPSPRO/S_KBLK-BELNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPSPRO/S_KBLK-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPSPRO/S_KBLK-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSUK
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPSPRO/S_KBLK-KURSUK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPSPRO/S_KBLK-KURSUK.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field CRSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPPSPRO/S_KBLK-CRSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPPSPRO/S_KBLK-CRSUPPLIER.
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_/SAPPSPRO/S_KBLK_STR, 
MANDT TYPE STRING,
BELNR TYPE STRING,
KVRGNG TYPE STRING,
KERFAS TYPE STRING,
KERDAT TYPE STRING,
KAENDE TYPE STRING,
KAEDAT TYPE STRING,
BLDAT TYPE STRING,
KTEXT TYPE STRING,
BLART TYPE STRING,
BLTYP TYPE STRING,
VARNR TYPE STRING,
WAERS TYPE STRING,
KLOEKZ TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
FIKRS TYPE STRING,
LTEXT TYPE STRING,
RBELNR TYPE STRING,
LOTKZ TYPE STRING,
HWAER TYPE STRING,
KURSF TYPE STRING,
WWERT TYPE STRING,
NEGVAL TYPE STRING,
BUDAT TYPE STRING,
BLKKZ TYPE STRING,
FEXEC TYPE STRING,
WKAPK TYPE STRING,
WKAOK TYPE STRING,
FMREASON TYPE STRING,
WF_START TYPE STRING,
ORGVG TYPE STRING,
KURSUK TYPE STRING,
DATUK TYPE STRING,
NPRBUDGET TYPE STRING,
PAYBUDGET TYPE STRING,
COMBUDGET TYPE STRING,
DOCLOCK TYPE STRING,
PMDOCS TYPE STRING,
RFBLNR TYPE STRING,
RFORG TYPE STRING,
RFTYP TYPE STRING,
RFSYS TYPE STRING,
MVSTAT TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
CCNAME TYPE STRING,
CCTYP TYPE STRING,
CRPUDATE TYPE STRING,
CRAUTHNO TYPE STRING,
CRSUPPLIER TYPE STRING,
CRWRBTR TYPE STRING,
CRMWSKZ TYPE STRING,
CRTXJCD TYPE STRING,
CRWMWST TYPE STRING,
CRCALCTAX TYPE STRING,
CRNETBTR TYPE STRING,
CRDMBTR TYPE STRING,
CRMWSTS TYPE STRING,
CRNETDMBTR TYPE STRING,
CRMATGOT TYPE STRING,
CREATE_RES TYPE STRING,
CRMATCH TYPE STRING,
CRMATCHDT TYPE STRING,
CRSUPNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPPSPRO/S_KBLK_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_/SAPPSPRO/S_KBLK_STR-MANDT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-BELNR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KVRGNG sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KERFAS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KERDAT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KAENDE sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KAEDAT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-BLDAT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KTEXT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-BLART sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-BLTYP sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-VARNR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-WAERS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KLOEKZ sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-BUKRS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KOKRS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-FIKRS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-LTEXT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-RBELNR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-LOTKZ sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-HWAER sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KURSF sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-WWERT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-NEGVAL sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-BUDAT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-BLKKZ sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-FEXEC sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-WKAPK sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-WKAOK sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-FMREASON sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-WF_START sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-ORGVG sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-KURSUK sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-DATUK sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-NPRBUDGET sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-PAYBUDGET sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-COMBUDGET sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-DOCLOCK sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-PMDOCS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-RFBLNR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-RFORG sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-RFTYP sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-RFSYS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-MVSTAT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CCINS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CCNUM sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CCNAME sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CCTYP sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRPUDATE sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRAUTHNO sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRSUPPLIER sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRWRBTR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRMWSKZ sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRTXJCD sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRWMWST sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRCALCTAX sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRNETBTR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRDMBTR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRMWSTS sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRNETDMBTR sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRMATGOT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CREATE_RES sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRMATCH sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRMATCHDT sy-vline 
WA_/SAPPSPRO/S_KBLK_STR-CRSUPNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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