ABAP Select data from SAP table /SAPF15/ELKOHKR1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPF15/ELKOHKR1 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 /SAPF15/ELKOHKR1. 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 /SAPF15/ELKOHKR1 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_/SAPF15/ELKOHKR1 TYPE STANDARD TABLE OF /SAPF15/ELKOHKR1,
      WA_/SAPF15/ELKOHKR1 TYPE /SAPF15/ELKOHKR1,
      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: </SAPF15/ELKOHKR1> TYPE /SAPF15/ELKOHKR1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPF15/ELKOHKR1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPF15/ELKOHKR1
  INTO TABLE IT_/SAPF15/ELKOHKR1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPF15/ELKOHKR1
*  INTO TABLE @DATA(IT_/SAPF15/ELKOHKR12).
*--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_/SAPF15/ELKOHKR1 INDEX 1 INTO DATA(WA_/SAPF15/ELKOHKR12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPF15/ELKOHKR1 ASSIGNING </SAPF15/ELKOHKR1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPF15/ELKOHKR1>-MANDT = 1.
</SAPF15/ELKOHKR1>-BUKRS = 1.
</SAPF15/ELKOHKR1>-GJAHR = 1.
</SAPF15/ELKOHKR1>-F03_N_BEWIRT = 1.
</SAPF15/ELKOHKR1>-F05_N_HHST = 1.

ENDLOOP.

LOOP AT IT_/SAPF15/ELKOHKR1 INTO WA_/SAPF15/ELKOHKR1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPF15/ELKOHKR1-F07_N_OBJNR, sy-vline,
  WA_/SAPF15/ELKOHKR1-F09_N, sy-vline,
  WA_/SAPF15/ELKOHKR1-F11_N, sy-vline,
  WA_/SAPF15/ELKOHKR1-F13_X, sy-vline,
  WA_/SAPF15/ELKOHKR1-F15_N_BETRAG, sy-vline,
  WA_/SAPF15/ELKOHKR1-F17_N_BETRAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPF15/ELKOHKR1 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_/SAPF15/ELKOHKR1 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_/SAPF15/ELKOHKR1 INTO WA_/SAPF15/ELKOHKR1.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPF15/ELKOHKR1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPF15/ELKOHKR1-GJAHR.
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_/SAPF15/ELKOHKR1_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
F03_N_BEWIRT TYPE STRING,
F05_N_HHST TYPE STRING,
F07_N_OBJNR TYPE STRING,
F09_N TYPE STRING,
F11_N TYPE STRING,
F13_X TYPE STRING,
F15_N_BETRAG TYPE STRING,
F17_N_BETRAG TYPE STRING,
F19_N_BETRAG TYPE STRING,
F21_N_BETRAG TYPE STRING,
F23_N_BETRAG TYPE STRING,
F25_N_BETRAG TYPE STRING,
F27_N_BETRAG TYPE STRING,
F29_N_BETRAG TYPE STRING,
F31_N_BETRAG TYPE STRING,
F32_N_BETRAG TYPE STRING,
F35_N_BETRAG TYPE STRING,
F37_X TYPE STRING,
F39_N TYPE STRING,
F41_X TYPE STRING,
F43_X_TEXTK TYPE STRING,
F45_N TYPE STRING,
F47_N TYPE STRING,
F49_X TYPE STRING,
F51_N TYPE STRING,
F53_X TYPE STRING,
F55_N_GJAHR TYPE STRING,
F57_N TYPE STRING,
F59_N TYPE STRING,
F61_X TYPE STRING,
STATUS TYPE STRING,
ERSDA TYPE STRING,
ERZET TYPE STRING,
ERNAM TYPE STRING,
USER_STATUS TYPE STRING,
USER_INFO TYPE STRING,
STATUS_UPDATE TYPE STRING,
LOESCHKENNZEICHEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPF15/ELKOHKR1_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_/SAPF15/ELKOHKR1_STR-MANDT sy-vline 
WA_/SAPF15/ELKOHKR1_STR-BUKRS sy-vline 
WA_/SAPF15/ELKOHKR1_STR-GJAHR sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F03_N_BEWIRT sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F05_N_HHST sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F07_N_OBJNR sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F09_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F11_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F13_X sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F15_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F17_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F19_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F21_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F23_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F25_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F27_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F29_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F31_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F32_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F35_N_BETRAG sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F37_X sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F39_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F41_X sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F43_X_TEXTK sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F45_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F47_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F49_X sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F51_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F53_X sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F55_N_GJAHR sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F57_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F59_N sy-vline 
WA_/SAPF15/ELKOHKR1_STR-F61_X sy-vline 
WA_/SAPF15/ELKOHKR1_STR-STATUS sy-vline 
WA_/SAPF15/ELKOHKR1_STR-ERSDA sy-vline 
WA_/SAPF15/ELKOHKR1_STR-ERZET sy-vline 
WA_/SAPF15/ELKOHKR1_STR-ERNAM sy-vline 
WA_/SAPF15/ELKOHKR1_STR-USER_STATUS sy-vline 
WA_/SAPF15/ELKOHKR1_STR-USER_INFO sy-vline 
WA_/SAPF15/ELKOHKR1_STR-STATUS_UPDATE sy-vline 
WA_/SAPF15/ELKOHKR1_STR-LOESCHKENNZEICHEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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