ABAP Select data from SAP table KABR_CONTROL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KABR_CONTROL
*  INTO TABLE @DATA(IT_KABR_CONTROL2).
*--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_KABR_CONTROL INDEX 1 INTO DATA(WA_KABR_CONTROL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KABR_CONTROL>-WRTTP = 1.
<KABR_CONTROL>-REVERS = 1.
<KABR_CONTROL>-TESTRUN = 1.
<KABR_CONTROL>-BATCH = 1.
<KABR_CONTROL>-PARALLEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KABR_CONTROL-WORKLIST, sy-vline,
  WA_KABR_CONTROL-DETAILLIST, sy-vline,
  WA_KABR_CONTROL-VRGNG, sy-vline,
  WA_KABR_CONTROL-TDCHECK, sy-vline,
  WA_KABR_CONTROL-SELART, sy-vline,
  WA_KABR_CONTROL-OK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KABR_CONTROL 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_KABR_CONTROL 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_KABR_CONTROL INTO WA_KABR_CONTROL.


*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 WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KABR_CONTROL-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KABR_CONTROL-WRTTP.
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_KABR_CONTROL_STR, 
WRTTP TYPE STRING,
REVERS TYPE STRING,
TESTRUN TYPE STRING,
BATCH TYPE STRING,
PARALLEL TYPE STRING,
WORKLIST TYPE STRING,
DETAILLIST TYPE STRING,
VRGNG TYPE STRING,
TDCHECK TYPE STRING,
SELART TYPE STRING,
OK TYPE STRING,
AFPO_PRE_READ TYPE STRING,
COSLV_READ TYPE STRING,
GROUP_OF_SENDERS TYPE STRING,
SINGLE_PROCESSING TYPE STRING,
COUNT_COM TYPE STRING,
LATE_PROCESS TYPE STRING,
MESS_IDENTIF TYPE STRING,
ZEILE TYPE STRING,
HANA_TRANSACTION TYPE STRING,
STATDET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KABR_CONTROL_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_KABR_CONTROL_STR-WRTTP sy-vline 
WA_KABR_CONTROL_STR-REVERS sy-vline 
WA_KABR_CONTROL_STR-TESTRUN sy-vline 
WA_KABR_CONTROL_STR-BATCH sy-vline 
WA_KABR_CONTROL_STR-PARALLEL sy-vline 
WA_KABR_CONTROL_STR-WORKLIST sy-vline 
WA_KABR_CONTROL_STR-DETAILLIST sy-vline 
WA_KABR_CONTROL_STR-VRGNG sy-vline 
WA_KABR_CONTROL_STR-TDCHECK sy-vline 
WA_KABR_CONTROL_STR-SELART sy-vline 
WA_KABR_CONTROL_STR-OK sy-vline 
WA_KABR_CONTROL_STR-AFPO_PRE_READ sy-vline 
WA_KABR_CONTROL_STR-COSLV_READ sy-vline 
WA_KABR_CONTROL_STR-GROUP_OF_SENDERS sy-vline 
WA_KABR_CONTROL_STR-SINGLE_PROCESSING sy-vline 
WA_KABR_CONTROL_STR-COUNT_COM sy-vline 
WA_KABR_CONTROL_STR-LATE_PROCESS sy-vline 
WA_KABR_CONTROL_STR-MESS_IDENTIF sy-vline 
WA_KABR_CONTROL_STR-ZEILE sy-vline 
WA_KABR_CONTROL_STR-HANA_TRANSACTION sy-vline 
WA_KABR_CONTROL_STR-STATDET sy-vline      INTO ld_text SEPARATED BY SPACE.

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