ABAP Select data from SAP table HAP_S_INFTY_CHANGED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HAP_S_INFTY_CHANGED
*  INTO TABLE @DATA(IT_HAP_S_INFTY_CHANGED2).
*--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_HAP_S_INFTY_CHANGED INDEX 1 INTO DATA(WA_HAP_S_INFTY_CHANGED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HAP_S_INFTY_CHANGED>-IT1000 = 1.
<HAP_S_INFTY_CHANGED>-IT1002 = 1.
<HAP_S_INFTY_CHANGED>-IT1048 = 1.
<HAP_S_INFTY_CHANGED>-IT5020 = 1.
<HAP_S_INFTY_CHANGED>-IT5021 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HAP_S_INFTY_CHANGED-IT5022, sy-vline,
  WA_HAP_S_INFTY_CHANGED-IT5023, sy-vline,
  WA_HAP_S_INFTY_CHANGED-IT5024, sy-vline,
  WA_HAP_S_INFTY_CHANGED-IT5025, sy-vline,
  WA_HAP_S_INFTY_CHANGED-IT5026, sy-vline,
  WA_HAP_S_INFTY_CHANGED-IT5027, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HAP_S_INFTY_CHANGED 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_HAP_S_INFTY_CHANGED 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_HAP_S_INFTY_CHANGED INTO WA_HAP_S_INFTY_CHANGED.


*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_HAP_S_INFTY_CHANGED_STR, 
IT1000 TYPE STRING,
IT1002 TYPE STRING,
IT1048 TYPE STRING,
IT5020 TYPE STRING,
IT5021 TYPE STRING,
IT5022 TYPE STRING,
IT5023 TYPE STRING,
IT5024 TYPE STRING,
IT5025 TYPE STRING,
IT5026 TYPE STRING,
IT5027 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HAP_S_INFTY_CHANGED_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_HAP_S_INFTY_CHANGED_STR-IT1000 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT1002 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT1048 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5020 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5021 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5022 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5023 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5024 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5025 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5026 sy-vline 
WA_HAP_S_INFTY_CHANGED_STR-IT5027 sy-vline      INTO ld_text SEPARATED BY SPACE.

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