ABAP Select data from SAP table KONTAB_1ST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KONTAB_1ST 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 KONTAB_1ST. 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 KONTAB_1ST 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_KONTAB_1ST TYPE STANDARD TABLE OF KONTAB_1ST,
      WA_KONTAB_1ST TYPE KONTAB_1ST,
      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: <KONTAB_1ST> TYPE KONTAB_1ST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KONTAB_1ST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KONTAB_1ST
  INTO TABLE IT_KONTAB_1ST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KONTAB_1ST
*  INTO TABLE @DATA(IT_KONTAB_1ST2).
*--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_KONTAB_1ST INDEX 1 INTO DATA(WA_KONTAB_1ST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KONTAB_1ST ASSIGNING <KONTAB_1ST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KONTAB_1ST>-BUKRS = 1.
<KONTAB_1ST>-KOART = 1.
<KONTAB_1ST>-KONKO = 1.
<KONTAB_1ST>-HKONT = 1.
<KONTAB_1ST>-SAKNR = 1.

ENDLOOP.

LOOP AT IT_KONTAB_1ST INTO WA_KONTAB_1ST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KONTAB_1ST-ANLN1, sy-vline,
  WA_KONTAB_1ST-ANLN2, sy-vline,
  WA_KONTAB_1ST-EMPFG, sy-vline,
  WA_KONTAB_1ST-GSBER, sy-vline,
  WA_KONTAB_1ST-BUPLA, sy-vline,
  WA_KONTAB_1ST-VBUND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KONTAB_1ST 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_KONTAB_1ST 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_KONTAB_1ST INTO WA_KONTAB_1ST.


*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 KONKO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-KONKO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-KONKO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROJK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-PROJK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-PROJK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBEL2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-VBEL2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-VBEL2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS_VBEL2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-LOGSYS_VBEL2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-LOGSYS_VBEL2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-IMKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPRCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-PPRCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-PPRCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-KBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-KBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PSEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-PSEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-PSEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BDGT_ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONTAB_1ST-BDGT_ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONTAB_1ST-BDGT_ACCOUNT.
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_KONTAB_1ST_STR, 
BUKRS TYPE STRING,
KOART TYPE STRING,
KONKO TYPE STRING,
HKONT TYPE STRING,
SAKNR TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
EMPFG TYPE STRING,
GSBER TYPE STRING,
BUPLA TYPE STRING,
VBUND TYPE STRING,
PSWSL TYPE STRING,
PROJK TYPE STRING,
NPLNR TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
KOSTL TYPE STRING,
FIPOS TYPE STRING,
AUFNR TYPE STRING,
VBEL2 TYPE STRING,
LOGSYS_VBEL2 TYPE STRING,
POSN2 TYPE STRING,
ETEN2 TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
IMKEY TYPE STRING,
DABRZ TYPE STRING,
MWSKZ TYPE STRING,
TXDAT_FROM TYPE STRING,
TAX_COUNTRY TYPE STRING,
QSSKZ TYPE STRING,
QSZNR TYPE STRING,
BSCHL TYPE STRING,
UMSKZ TYPE STRING,
UMSKS TYPE STRING,
XANET TYPE STRING,
KKBER TYPE STRING,
FISTL TYPE STRING,
PRCTR TYPE STRING,
PPRCT TYPE STRING,
GEBER TYPE STRING,
GRANT_NBR TYPE STRING,
GMVKZ TYPE STRING,
SRTYPE TYPE STRING,
FKBER TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,
KONTL TYPE STRING,
CESSION_KZ TYPE STRING,
SEGMENT TYPE STRING,
PSEGMENT TYPE STRING,
BUDGET_PD TYPE STRING,
BDGT_ACCOUNT TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
SHKZG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KONTAB_1ST_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_KONTAB_1ST_STR-BUKRS sy-vline 
WA_KONTAB_1ST_STR-KOART sy-vline 
WA_KONTAB_1ST_STR-KONKO sy-vline 
WA_KONTAB_1ST_STR-HKONT sy-vline 
WA_KONTAB_1ST_STR-SAKNR sy-vline 
WA_KONTAB_1ST_STR-ANLN1 sy-vline 
WA_KONTAB_1ST_STR-ANLN2 sy-vline 
WA_KONTAB_1ST_STR-EMPFG sy-vline 
WA_KONTAB_1ST_STR-GSBER sy-vline 
WA_KONTAB_1ST_STR-BUPLA sy-vline 
WA_KONTAB_1ST_STR-VBUND sy-vline 
WA_KONTAB_1ST_STR-PSWSL sy-vline 
WA_KONTAB_1ST_STR-PROJK sy-vline 
WA_KONTAB_1ST_STR-NPLNR sy-vline 
WA_KONTAB_1ST_STR-AUFPL sy-vline 
WA_KONTAB_1ST_STR-APLZL sy-vline 
WA_KONTAB_1ST_STR-KOSTL sy-vline 
WA_KONTAB_1ST_STR-FIPOS sy-vline 
WA_KONTAB_1ST_STR-AUFNR sy-vline 
WA_KONTAB_1ST_STR-VBEL2 sy-vline 
WA_KONTAB_1ST_STR-LOGSYS_VBEL2 sy-vline 
WA_KONTAB_1ST_STR-POSN2 sy-vline 
WA_KONTAB_1ST_STR-ETEN2 sy-vline 
WA_KONTAB_1ST_STR-EBELN sy-vline 
WA_KONTAB_1ST_STR-EBELP sy-vline 
WA_KONTAB_1ST_STR-ZEKKN sy-vline 
WA_KONTAB_1ST_STR-IMKEY sy-vline 
WA_KONTAB_1ST_STR-DABRZ sy-vline 
WA_KONTAB_1ST_STR-MWSKZ sy-vline 
WA_KONTAB_1ST_STR-TXDAT_FROM sy-vline 
WA_KONTAB_1ST_STR-TAX_COUNTRY sy-vline 
WA_KONTAB_1ST_STR-QSSKZ sy-vline 
WA_KONTAB_1ST_STR-QSZNR sy-vline 
WA_KONTAB_1ST_STR-BSCHL sy-vline 
WA_KONTAB_1ST_STR-UMSKZ sy-vline 
WA_KONTAB_1ST_STR-UMSKS sy-vline 
WA_KONTAB_1ST_STR-XANET sy-vline 
WA_KONTAB_1ST_STR-KKBER sy-vline 
WA_KONTAB_1ST_STR-FISTL sy-vline 
WA_KONTAB_1ST_STR-PRCTR sy-vline 
WA_KONTAB_1ST_STR-PPRCT sy-vline 
WA_KONTAB_1ST_STR-GEBER sy-vline 
WA_KONTAB_1ST_STR-GRANT_NBR sy-vline 
WA_KONTAB_1ST_STR-GMVKZ sy-vline 
WA_KONTAB_1ST_STR-SRTYPE sy-vline 
WA_KONTAB_1ST_STR-FKBER sy-vline 
WA_KONTAB_1ST_STR-KBLNR sy-vline 
WA_KONTAB_1ST_STR-KBLPOS sy-vline 
WA_KONTAB_1ST_STR-KONTL sy-vline 
WA_KONTAB_1ST_STR-CESSION_KZ sy-vline 
WA_KONTAB_1ST_STR-SEGMENT sy-vline 
WA_KONTAB_1ST_STR-PSEGMENT sy-vline 
WA_KONTAB_1ST_STR-BUDGET_PD sy-vline 
WA_KONTAB_1ST_STR-BDGT_ACCOUNT sy-vline 
WA_KONTAB_1ST_STR-HBKID sy-vline 
WA_KONTAB_1ST_STR-HKTID sy-vline 
WA_KONTAB_1ST_STR-SHKZG sy-vline      INTO ld_text SEPARATED BY SPACE.

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