ABAP Select data from SAP table KKAPARA_TA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKAPARA_TA
*  INTO TABLE @DATA(IT_KKAPARA_TA2).
*--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_KKAPARA_TA INDEX 1 INTO DATA(WA_KKAPARA_TA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKAPARA_TA>-MANDT = 1.
<KKAPARA_TA>-AUFNR = 1.
<KKAPARA_TA>-POSNR = 1.
<KKAPARA_TA>-OBJNR = 1.
<KKAPARA_TA>-OBJNP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKAPARA_TA-OBJID, sy-vline,
  WA_KKAPARA_TA-AUTYP, sy-vline,
  WA_KKAPARA_TA-SAFNR, sy-vline,
  WA_KKAPARA_TA-MATNR, sy-vline,
  WA_KKAPARA_TA-MAKTX, sy-vline,
  WA_KKAPARA_TA-PWERK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKAPARA_TA 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_KKAPARA_TA 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_KKAPARA_TA INTO WA_KKAPARA_TA.


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

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

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

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

*Conversion exit AC152, internal->external for field WRT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KKAPARA_TA-WRT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAPARA_TA-WRT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WRTK
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KKAPARA_TA-WRTK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAPARA_TA-WRTK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WRT_UPD
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KKAPARA_TA-WRT_UPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAPARA_TA-WRT_UPD.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAPARA_TA-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAPARA_TA-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_KKAPARA_TA_STR, 
MANDT TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
OBJNR TYPE STRING,
OBJNP TYPE STRING,
OBJID TYPE STRING,
AUTYP TYPE STRING,
SAFNR TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
PWERK TYPE STRING,
VERID TYPE STRING,
PROCNR TYPE STRING,
VERSN TYPE STRING,
WRT TYPE STRING,
WRTK TYPE STRING,
WRT_UPD TYPE STRING,
WAEHR TYPE STRING,
AMPEL TYPE STRING,
MAXNT TYPE STRING,
WERKS TYPE STRING,
NO_AUTH_PLANT TYPE STRING,
AUART TYPE STRING,
KTEXT TYPE STRING,
WEMNG TYPE STRING,
PSMNG TYPE STRING,
AMEIN TYPE STRING,
ABART TYPE STRING,
BEWER TYPE STRING,
BWVAR TYPE STRING,
PAR_AUFLO TYPE STRING,
VALUTYP TYPE STRING,
NO_AUTH_VALUTYP TYPE STRING,
VALUTEXT TYPE STRING,
FLG_MLTPS TYPE STRING,
BUKRS TYPE STRING,
ABGSL TYPE STRING,
STATTEXT TYPE STRING,
WIPTYP TYPE STRING,
ZSCHL TYPE STRING,
LOEKZ TYPE STRING,
PKOSA TYPE STRING,
PRCTR TYPE STRING,
PROCNR_TXT TYPE STRING,
EB_POST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKAPARA_TA_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_KKAPARA_TA_STR-MANDT sy-vline 
WA_KKAPARA_TA_STR-AUFNR sy-vline 
WA_KKAPARA_TA_STR-POSNR sy-vline 
WA_KKAPARA_TA_STR-OBJNR sy-vline 
WA_KKAPARA_TA_STR-OBJNP sy-vline 
WA_KKAPARA_TA_STR-OBJID sy-vline 
WA_KKAPARA_TA_STR-AUTYP sy-vline 
WA_KKAPARA_TA_STR-SAFNR sy-vline 
WA_KKAPARA_TA_STR-MATNR sy-vline 
WA_KKAPARA_TA_STR-MAKTX sy-vline 
WA_KKAPARA_TA_STR-PWERK sy-vline 
WA_KKAPARA_TA_STR-VERID sy-vline 
WA_KKAPARA_TA_STR-PROCNR sy-vline 
WA_KKAPARA_TA_STR-VERSN sy-vline 
WA_KKAPARA_TA_STR-WRT sy-vline 
WA_KKAPARA_TA_STR-WRTK sy-vline 
WA_KKAPARA_TA_STR-WRT_UPD sy-vline 
WA_KKAPARA_TA_STR-WAEHR sy-vline 
WA_KKAPARA_TA_STR-AMPEL sy-vline 
WA_KKAPARA_TA_STR-MAXNT sy-vline 
WA_KKAPARA_TA_STR-WERKS sy-vline 
WA_KKAPARA_TA_STR-NO_AUTH_PLANT sy-vline 
WA_KKAPARA_TA_STR-AUART sy-vline 
WA_KKAPARA_TA_STR-KTEXT sy-vline 
WA_KKAPARA_TA_STR-WEMNG sy-vline 
WA_KKAPARA_TA_STR-PSMNG sy-vline 
WA_KKAPARA_TA_STR-AMEIN sy-vline 
WA_KKAPARA_TA_STR-ABART sy-vline 
WA_KKAPARA_TA_STR-BEWER sy-vline 
WA_KKAPARA_TA_STR-BWVAR sy-vline 
WA_KKAPARA_TA_STR-PAR_AUFLO sy-vline 
WA_KKAPARA_TA_STR-VALUTYP sy-vline 
WA_KKAPARA_TA_STR-NO_AUTH_VALUTYP sy-vline 
WA_KKAPARA_TA_STR-VALUTEXT sy-vline 
WA_KKAPARA_TA_STR-FLG_MLTPS sy-vline 
WA_KKAPARA_TA_STR-BUKRS sy-vline 
WA_KKAPARA_TA_STR-ABGSL sy-vline 
WA_KKAPARA_TA_STR-STATTEXT sy-vline 
WA_KKAPARA_TA_STR-WIPTYP sy-vline 
WA_KKAPARA_TA_STR-ZSCHL sy-vline 
WA_KKAPARA_TA_STR-LOEKZ sy-vline 
WA_KKAPARA_TA_STR-PKOSA sy-vline 
WA_KKAPARA_TA_STR-PRCTR sy-vline 
WA_KKAPARA_TA_STR-PROCNR_TXT sy-vline 
WA_KKAPARA_TA_STR-EB_POST sy-vline      INTO ld_text SEPARATED BY SPACE.

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