ABAP Select data from SAP table IDGT_S_UI_HEADER2_REP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDGT_S_UI_HEADER2_REP 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 IDGT_S_UI_HEADER2_REP. 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 IDGT_S_UI_HEADER2_REP 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_IDGT_S_UI_HEADER2_REP TYPE STANDARD TABLE OF IDGT_S_UI_HEADER2_REP,
      WA_IDGT_S_UI_HEADER2_REP TYPE IDGT_S_UI_HEADER2_REP,
      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: <IDGT_S_UI_HEADER2_REP> TYPE IDGT_S_UI_HEADER2_REP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IDGT_S_UI_HEADER2_REP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IDGT_S_UI_HEADER2_REP
  INTO TABLE IT_IDGT_S_UI_HEADER2_REP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDGT_S_UI_HEADER2_REP
*  INTO TABLE @DATA(IT_IDGT_S_UI_HEADER2_REP2).
*--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_IDGT_S_UI_HEADER2_REP INDEX 1 INTO DATA(WA_IDGT_S_UI_HEADER2_REP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IDGT_S_UI_HEADER2_REP ASSIGNING <IDGT_S_UI_HEADER2_REP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDGT_S_UI_HEADER2_REP>-REFVBELN = 1.
<IDGT_S_UI_HEADER2_REP>-COMBINEID = 1.
<IDGT_S_UI_HEADER2_REP>-GTSTATUS = 1.
<IDGT_S_UI_HEADER2_REP>-TLINES = 1.
<IDGT_S_UI_HEADER2_REP>-SENTDATE = 1.

ENDLOOP.

LOOP AT IT_IDGT_S_UI_HEADER2_REP INTO WA_IDGT_S_UI_HEADER2_REP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDGT_S_UI_HEADER2_REP-PRINTDAT, sy-vline,
  WA_IDGT_S_UI_HEADER2_REP-FILETYPE, sy-vline,
  WA_IDGT_S_UI_HEADER2_REP-NOTE, sy-vline,
  WA_IDGT_S_UI_HEADER2_REP-KUNNR, sy-vline,
  WA_IDGT_S_UI_HEADER2_REP-KNAME1, sy-vline,
  WA_IDGT_S_UI_HEADER2_REP-KSTCD5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDGT_S_UI_HEADER2_REP 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_IDGT_S_UI_HEADER2_REP 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_IDGT_S_UI_HEADER2_REP INTO WA_IDGT_S_UI_HEADER2_REP.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_S_UI_HEADER2_REP-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_S_UI_HEADER2_REP-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GTVBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_S_UI_HEADER2_REP-GTVBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_S_UI_HEADER2_REP-GTVBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INVTYP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_S_UI_HEADER2_REP-INVTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_S_UI_HEADER2_REP-INVTYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PGTVBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDGT_S_UI_HEADER2_REP-PGTVBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDGT_S_UI_HEADER2_REP-PGTVBELN.
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_IDGT_S_UI_HEADER2_REP_STR, 
REFVBELN TYPE STRING,
COMBINEID TYPE STRING,
GTSTATUS TYPE STRING,
TLINES TYPE STRING,
SENTDATE TYPE STRING,
PRINTDAT TYPE STRING,
FILETYPE TYPE STRING,
NOTE TYPE STRING,
KUNNR TYPE STRING,
KNAME1 TYPE STRING,
KSTCD5 TYPE STRING,
KSTRAS TYPE STRING,
KBANKA TYPE STRING,
VUSNAM TYPE STRING,
CUSNAM TYPE STRING,
VBANKA TYPE STRING,
VSTRAS TYPE STRING,
GTVBELN TYPE STRING,
INVTYP TYPE STRING,
TYPCODE TYPE STRING,
CANCELIND TYPE STRING,
GOODSLIST TYPE STRING,
GLISTIND TYPE STRING,
KSTCD1 TYPE STRING,
PGTVBELN TYPE STRING,
PTYPCODE TYPE STRING,
GTSTATUS_T TYPE STRING,
INVTYP_T TYPE STRING,
CANCELIND_T TYPE STRING,
GLISTIND_T TYPE STRING,
FILETYPE_T TYPE STRING,
STATUS_TOOL TYPE STRING,
INVTYP_TOOL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDGT_S_UI_HEADER2_REP_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_IDGT_S_UI_HEADER2_REP_STR-REFVBELN sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-COMBINEID sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-GTSTATUS sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-TLINES sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-SENTDATE sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-PRINTDAT sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-FILETYPE sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-NOTE sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-KUNNR sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-KNAME1 sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-KSTCD5 sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-KSTRAS sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-KBANKA sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-VUSNAM sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-CUSNAM sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-VBANKA sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-VSTRAS sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-GTVBELN sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-INVTYP sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-TYPCODE sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-CANCELIND sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-GOODSLIST sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-GLISTIND sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-KSTCD1 sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-PGTVBELN sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-PTYPCODE sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-GTSTATUS_T sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-INVTYP_T sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-CANCELIND_T sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-GLISTIND_T sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-FILETYPE_T sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-STATUS_TOOL sy-vline 
WA_IDGT_S_UI_HEADER2_REP_STR-INVTYP_TOOL sy-vline      INTO ld_text SEPARATED BY SPACE.

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