ABAP Select data from SAP table FKKDIHDTMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKDIHDTMP
*  INTO TABLE @DATA(IT_FKKDIHDTMP2).
*--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_FKKDIHDTMP INDEX 1 INTO DATA(WA_FKKDIHDTMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKDIHDTMP>-MANDT = 1.
<FKKDIHDTMP>-PROGN = 1.
<FKKDIHDTMP>-PROGID = 1.
<FKKDIHDTMP>-OBJECT = 1.
<FKKDIHDTMP>-VARIANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKDIHDTMP-CPUDT, sy-vline,
  WA_FKKDIHDTMP-CPUTM, sy-vline,
  WA_FKKDIHDTMP-ERNAM, sy-vline,
  WA_FKKDIHDTMP-ISIZE, sy-vline,
  WA_FKKDIHDTMP-LASTFETCH, sy-vline,
  WA_FKKDIHDTMP-XRUNFIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKDIHDTMP 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_FKKDIHDTMP 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_FKKDIHDTMP INTO WA_FKKDIHDTMP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FKKDIHDTMP_STR, 
MANDT TYPE STRING,
PROGN TYPE STRING,
PROGID TYPE STRING,
OBJECT TYPE STRING,
VARIANT TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
ERNAM TYPE STRING,
ISIZE TYPE STRING,
LASTFETCH TYPE STRING,
XRUNFIN TYPE STRING,
MONITORNAME TYPE STRING,
MONITORCOUNT TYPE STRING,
JOBTYP TYPE STRING,
STOPNAME TYPE STRING,
STOPCOUNT TYPE STRING,
STOPJOB_ON TYPE STRING,
MONJOB_CNT TYPE STRING,
STOPJOB_CNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKDIHDTMP_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_FKKDIHDTMP_STR-MANDT sy-vline 
WA_FKKDIHDTMP_STR-PROGN sy-vline 
WA_FKKDIHDTMP_STR-PROGID sy-vline 
WA_FKKDIHDTMP_STR-OBJECT sy-vline 
WA_FKKDIHDTMP_STR-VARIANT sy-vline 
WA_FKKDIHDTMP_STR-CPUDT sy-vline 
WA_FKKDIHDTMP_STR-CPUTM sy-vline 
WA_FKKDIHDTMP_STR-ERNAM sy-vline 
WA_FKKDIHDTMP_STR-ISIZE sy-vline 
WA_FKKDIHDTMP_STR-LASTFETCH sy-vline 
WA_FKKDIHDTMP_STR-XRUNFIN sy-vline 
WA_FKKDIHDTMP_STR-MONITORNAME sy-vline 
WA_FKKDIHDTMP_STR-MONITORCOUNT sy-vline 
WA_FKKDIHDTMP_STR-JOBTYP sy-vline 
WA_FKKDIHDTMP_STR-STOPNAME sy-vline 
WA_FKKDIHDTMP_STR-STOPCOUNT sy-vline 
WA_FKKDIHDTMP_STR-STOPJOB_ON sy-vline 
WA_FKKDIHDTMP_STR-MONJOB_CNT sy-vline 
WA_FKKDIHDTMP_STR-STOPJOB_CNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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