ABAP Select data from SAP table KKAGACDOCATKKAZ2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KKAGACDOCATKKAZ2 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 KKAGACDOCATKKAZ2. 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 KKAGACDOCATKKAZ2 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_KKAGACDOCATKKAZ2 TYPE STANDARD TABLE OF KKAGACDOCATKKAZ2,
      WA_KKAGACDOCATKKAZ2 TYPE KKAGACDOCATKKAZ2,
      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: <KKAGACDOCATKKAZ2> TYPE KKAGACDOCATKKAZ2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KKAGACDOCATKKAZ2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KKAGACDOCATKKAZ2
  INTO TABLE IT_KKAGACDOCATKKAZ2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKAGACDOCATKKAZ2
*  INTO TABLE @DATA(IT_KKAGACDOCATKKAZ22).
*--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_KKAGACDOCATKKAZ2 INDEX 1 INTO DATA(WA_KKAGACDOCATKKAZ22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KKAGACDOCATKKAZ2 ASSIGNING <KKAGACDOCATKKAZ2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKAGACDOCATKKAZ2>-MANDT = 1.
<KKAGACDOCATKKAZ2>-RLDNR = 1.
<KKAGACDOCATKKAZ2>-RBUKRS = 1.
<KKAGACDOCATKKAZ2>-OBJNR = 1.
<KKAGACDOCATKKAZ2>-GJAHR = 1.

ENDLOOP.

LOOP AT IT_KKAGACDOCATKKAZ2 INTO WA_KKAGACDOCATKKAZ2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKAGACDOCATKKAZ2-RACCT, sy-vline,
  WA_KKAGACDOCATKKAZ2-KSTAR_CHECK, sy-vline,
  WA_KKAGACDOCATKKAZ2-HRKFT, sy-vline,
  WA_KKAGACDOCATKKAZ2-HKGRP, sy-vline,
  WA_KKAGACDOCATKKAZ2-CO_BEKNZ, sy-vline,
  WA_KKAGACDOCATKKAZ2-RWCUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKAGACDOCATKKAZ2 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_KKAGACDOCATKKAZ2 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_KKAGACDOCATKKAZ2 INTO WA_KKAGACDOCATKKAZ2.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-RACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-RACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR_CHECK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-KSTAR_CHECK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-KSTAR_CHECK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BEKNZ, internal->external for field CO_BEKNZ
CALL FUNCTION 'CONVERSION_EXIT_BEKNZ_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-CO_BEKNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-CO_BEKNZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-RUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UKOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-UKOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-UKOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UPRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-UPRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-UPRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field FISCYEARPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-FISCYEARPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-FISCYEARPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKAGACDOCATKKAZ2-VERSA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKAGACDOCATKKAZ2-VERSA.
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_KKAGACDOCATKKAZ2_STR, 
MANDT TYPE STRING,
RLDNR TYPE STRING,
RBUKRS TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
RACCT TYPE STRING,
KSTAR_CHECK TYPE STRING,
HRKFT TYPE STRING,
HKGRP TYPE STRING,
CO_BEKNZ TYPE STRING,
RWCUR TYPE STRING,
RUNIT TYPE STRING,
BELTP TYPE STRING,
UKOSTL TYPE STRING,
ULSTAR TYPE STRING,
UPRZNR TYPE STRING,
POPER TYPE STRING,
FISCYEARPER TYPE STRING,
RANK TYPE STRING,
VERSA TYPE STRING,
ABGSL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKAGACDOCATKKAZ2_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_KKAGACDOCATKKAZ2_STR-MANDT sy-vline 
WA_KKAGACDOCATKKAZ2_STR-RLDNR sy-vline 
WA_KKAGACDOCATKKAZ2_STR-RBUKRS sy-vline 
WA_KKAGACDOCATKKAZ2_STR-OBJNR sy-vline 
WA_KKAGACDOCATKKAZ2_STR-GJAHR sy-vline 
WA_KKAGACDOCATKKAZ2_STR-RACCT sy-vline 
WA_KKAGACDOCATKKAZ2_STR-KSTAR_CHECK sy-vline 
WA_KKAGACDOCATKKAZ2_STR-HRKFT sy-vline 
WA_KKAGACDOCATKKAZ2_STR-HKGRP sy-vline 
WA_KKAGACDOCATKKAZ2_STR-CO_BEKNZ sy-vline 
WA_KKAGACDOCATKKAZ2_STR-RWCUR sy-vline 
WA_KKAGACDOCATKKAZ2_STR-RUNIT sy-vline 
WA_KKAGACDOCATKKAZ2_STR-BELTP sy-vline 
WA_KKAGACDOCATKKAZ2_STR-UKOSTL sy-vline 
WA_KKAGACDOCATKKAZ2_STR-ULSTAR sy-vline 
WA_KKAGACDOCATKKAZ2_STR-UPRZNR sy-vline 
WA_KKAGACDOCATKKAZ2_STR-POPER sy-vline 
WA_KKAGACDOCATKKAZ2_STR-FISCYEARPER sy-vline 
WA_KKAGACDOCATKKAZ2_STR-RANK sy-vline 
WA_KKAGACDOCATKKAZ2_STR-VERSA sy-vline 
WA_KKAGACDOCATKKAZ2_STR-ABGSL sy-vline      INTO ld_text SEPARATED BY SPACE.

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