ABAP Select data from SAP table HRDEAOSF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDEAOSF
*  INTO TABLE @DATA(IT_HRDEAOSF2).
*--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_HRDEAOSF INDEX 1 INTO DATA(WA_HRDEAOSF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDEAOSF>-TABNA = 1.
<HRDEAOSF>-FIELD = 1.
<HRDEAOSF>-PROGT = 1.
<HRDEAOSF>-PROGL = 1.
<HRDEAOSF>-PROGD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDEAOSF-CONVE, sy-vline,
  WA_HRDEAOSF-CONVT, sy-vline,
  WA_HRDEAOSF-CONVM, sy-vline,
  WA_HRDEAOSF-TBTXT, sy-vline,
  WA_HRDEAOSF-FDTXT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_HRDEAOSF 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_HRDEAOSF 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_HRDEAOSF INTO WA_HRDEAOSF.


*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_HRDEAOSF_STR, 
TABNA TYPE STRING,
FIELD TYPE STRING,
PROGT TYPE STRING,
PROGL TYPE STRING,
PROGD TYPE STRING,
CONVE TYPE STRING,
CONVT TYPE STRING,
CONVM TYPE STRING,
TBTXT TYPE STRING,
FDTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDEAOSF_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_HRDEAOSF_STR-TABNA sy-vline 
WA_HRDEAOSF_STR-FIELD sy-vline 
WA_HRDEAOSF_STR-PROGT sy-vline 
WA_HRDEAOSF_STR-PROGL sy-vline 
WA_HRDEAOSF_STR-PROGD sy-vline 
WA_HRDEAOSF_STR-CONVE sy-vline 
WA_HRDEAOSF_STR-CONVT sy-vline 
WA_HRDEAOSF_STR-CONVM sy-vline 
WA_HRDEAOSF_STR-TBTXT sy-vline 
WA_HRDEAOSF_STR-FDTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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