ABAP Select data from SAP table SHKONTEXT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHKONTEXT
*  INTO TABLE @DATA(IT_SHKONTEXT2).
*--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_SHKONTEXT INDEX 1 INTO DATA(WA_SHKONTEXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHKONTEXT>-AUFRUF = 1.
<SHKONTEXT>-OBJEKT_KZ = 1.
<SHKONTEXT>-PROGRAMM = 1.
<SHKONTEXT>-DYNPRO = 1.
<SHKONTEXT>-TABNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SHKONTEXT-FLDNAME, sy-vline,
  WA_SHKONTEXT-FLDTYP, sy-vline,
  WA_SHKONTEXT-KEYWORD, sy-vline,
  WA_SHKONTEXT-FLDLNG, sy-vline,
  WA_SHKONTEXT-FLDINH, sy-vline,
  WA_SHKONTEXT-MCOBJ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SHKONTEXT 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_SHKONTEXT 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_SHKONTEXT INTO WA_SHKONTEXT.


*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 DTYPE, internal->external for field FLDTYP
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_SHKONTEXT-FLDTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHKONTEXT-FLDTYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SHKONTEXT-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHKONTEXT-LANGU.
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_SHKONTEXT_STR, 
AUFRUF TYPE STRING,
OBJEKT_KZ TYPE STRING,
PROGRAMM TYPE STRING,
DYNPRO TYPE STRING,
TABNAME TYPE STRING,
FLDNAME TYPE STRING,
FLDTYP TYPE STRING,
KEYWORD TYPE STRING,
FLDLNG TYPE STRING,
FLDINH TYPE STRING,
MCOBJ TYPE STRING,
LANGU TYPE STRING,
MENU_FKT TYPE STRING,
MELD_ID TYPE STRING,
MELD_NR TYPE STRING,
MELDUNG TYPE STRING,
TITEL TYPE STRING,
DYNPRO_FLD TYPE STRING,
KZ_SYDYN TYPE STRING,
CHCK_TABLE TYPE STRING,
CHCK_FIELD TYPE STRING,
VALEXIST TYPE STRING,
TCODE TYPE STRING,
PFKEY TYPE STRING,
DOKUKEY TYPE STRING,
REPORT TYPE STRING,
DOKU_ID TYPE STRING,
DOKU_OBJ TYPE STRING,
HEADERTEXT TYPE STRING,
DE_NAME TYPE STRING,
DE_ZUSATZ TYPE STRING,
RETVAL TYPE STRING,
DYNPCHOICE TYPE STRING,
WORKITEMID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SHKONTEXT_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_SHKONTEXT_STR-AUFRUF sy-vline 
WA_SHKONTEXT_STR-OBJEKT_KZ sy-vline 
WA_SHKONTEXT_STR-PROGRAMM sy-vline 
WA_SHKONTEXT_STR-DYNPRO sy-vline 
WA_SHKONTEXT_STR-TABNAME sy-vline 
WA_SHKONTEXT_STR-FLDNAME sy-vline 
WA_SHKONTEXT_STR-FLDTYP sy-vline 
WA_SHKONTEXT_STR-KEYWORD sy-vline 
WA_SHKONTEXT_STR-FLDLNG sy-vline 
WA_SHKONTEXT_STR-FLDINH sy-vline 
WA_SHKONTEXT_STR-MCOBJ sy-vline 
WA_SHKONTEXT_STR-LANGU sy-vline 
WA_SHKONTEXT_STR-MENU_FKT sy-vline 
WA_SHKONTEXT_STR-MELD_ID sy-vline 
WA_SHKONTEXT_STR-MELD_NR sy-vline 
WA_SHKONTEXT_STR-MELDUNG sy-vline 
WA_SHKONTEXT_STR-TITEL sy-vline 
WA_SHKONTEXT_STR-DYNPRO_FLD sy-vline 
WA_SHKONTEXT_STR-KZ_SYDYN sy-vline 
WA_SHKONTEXT_STR-CHCK_TABLE sy-vline 
WA_SHKONTEXT_STR-CHCK_FIELD sy-vline 
WA_SHKONTEXT_STR-VALEXIST sy-vline 
WA_SHKONTEXT_STR-TCODE sy-vline 
WA_SHKONTEXT_STR-PFKEY sy-vline 
WA_SHKONTEXT_STR-DOKUKEY sy-vline 
WA_SHKONTEXT_STR-REPORT sy-vline 
WA_SHKONTEXT_STR-DOKU_ID sy-vline 
WA_SHKONTEXT_STR-DOKU_OBJ sy-vline 
WA_SHKONTEXT_STR-HEADERTEXT sy-vline 
WA_SHKONTEXT_STR-DE_NAME sy-vline 
WA_SHKONTEXT_STR-DE_ZUSATZ sy-vline 
WA_SHKONTEXT_STR-RETVAL sy-vline 
WA_SHKONTEXT_STR-DYNPCHOICE sy-vline 
WA_SHKONTEXT_STR-WORKITEMID sy-vline      INTO ld_text SEPARATED BY SPACE.

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