ABAP Select data from SAP table HRD3PARA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRD3PARA 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 HRD3PARA. 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 HRD3PARA 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_HRD3PARA TYPE STANDARD TABLE OF HRD3PARA,
      WA_HRD3PARA TYPE HRD3PARA,
      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: <HRD3PARA> TYPE HRD3PARA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRD3PARA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRD3PARA
  INTO TABLE IT_HRD3PARA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRD3PARA
*  INTO TABLE @DATA(IT_HRD3PARA2).
*--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_HRD3PARA INDEX 1 INTO DATA(WA_HRD3PARA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRD3PARA ASSIGNING <HRD3PARA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRD3PARA>-MANUDAT = 1.
<HRD3PARA>-AUTODAT = 1.
<HRD3PARA>-PROTO = 1.
<HRD3PARA>-NOREAD = 1.
<HRD3PARA>-NOWRITE = 1.

ENDLOOP.

LOOP AT IT_HRD3PARA INTO WA_HRD3PARA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRD3PARA-JAN, sy-vline,
  WA_HRD3PARA-FEB, sy-vline,
  WA_HRD3PARA-MAR, sy-vline,
  WA_HRD3PARA-APR, sy-vline,
  WA_HRD3PARA-HEUTE, sy-vline,
  WA_HRD3PARA-FPMONAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRD3PARA 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_HRD3PARA 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_HRD3PARA INTO WA_HRD3PARA.


*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_HRD3PARA_STR, 
MANUDAT TYPE STRING,
AUTODAT TYPE STRING,
PROTO TYPE STRING,
NOREAD TYPE STRING,
NOWRITE TYPE STRING,
JAN TYPE STRING,
FEB TYPE STRING,
MAR TYPE STRING,
APR TYPE STRING,
HEUTE TYPE STRING,
FPMONAT TYPE STRING,
FPJAHR TYPE STRING,
MART0 TYPE STRING,
MART1 TYPE STRING,
MART2 TYPE STRING,
MART3 TYPE STRING,
MART4 TYPE STRING,
MART5 TYPE STRING,
MART6 TYPE STRING,
MART7 TYPE STRING,
MART8 TYPE STRING,
SELPER TYPE STRING,
SELJAH TYPE STRING,
SELJHR TYPE STRING,
SELALL TYPE STRING,
SELMLD TYPE STRING,
NEWPAG TYPE STRING,
NEWSAC TYPE STRING,
DZUBT TYPE STRING,
TADAT TYPE STRING,
NOUPD TYPE STRING,
TREE TYPE STRING,
STLI TYPE STRING,
MDATUM TYPE STRING,
MZEIT TYPE STRING,
KVSCH TYPE STRING,
KVGES TYPE STRING,
B2ABNR TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
SETFLAG TYPE STRING,
CFLID TYPE STRING,
DELNOT TYPE STRING,
PDATNR TYPE STRING,
PWDHNR TYPE STRING,
ANTIZ TYPE STRING,
PRDIAL TYPE STRING,
JAHRM TYPE STRING,
OAKEY TYPE STRING,
TSELALL TYPE STRING,
TSELSEL TYPE STRING,
NEWNUM TYPE STRING,
FELDNAME TYPE STRING,
FELDDATA TYPE STRING,
ABGLKK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRD3PARA_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_HRD3PARA_STR-MANUDAT sy-vline 
WA_HRD3PARA_STR-AUTODAT sy-vline 
WA_HRD3PARA_STR-PROTO sy-vline 
WA_HRD3PARA_STR-NOREAD sy-vline 
WA_HRD3PARA_STR-NOWRITE sy-vline 
WA_HRD3PARA_STR-JAN sy-vline 
WA_HRD3PARA_STR-FEB sy-vline 
WA_HRD3PARA_STR-MAR sy-vline 
WA_HRD3PARA_STR-APR sy-vline 
WA_HRD3PARA_STR-HEUTE sy-vline 
WA_HRD3PARA_STR-FPMONAT sy-vline 
WA_HRD3PARA_STR-FPJAHR sy-vline 
WA_HRD3PARA_STR-MART0 sy-vline 
WA_HRD3PARA_STR-MART1 sy-vline 
WA_HRD3PARA_STR-MART2 sy-vline 
WA_HRD3PARA_STR-MART3 sy-vline 
WA_HRD3PARA_STR-MART4 sy-vline 
WA_HRD3PARA_STR-MART5 sy-vline 
WA_HRD3PARA_STR-MART6 sy-vline 
WA_HRD3PARA_STR-MART7 sy-vline 
WA_HRD3PARA_STR-MART8 sy-vline 
WA_HRD3PARA_STR-SELPER sy-vline 
WA_HRD3PARA_STR-SELJAH sy-vline 
WA_HRD3PARA_STR-SELJHR sy-vline 
WA_HRD3PARA_STR-SELALL sy-vline 
WA_HRD3PARA_STR-SELMLD sy-vline 
WA_HRD3PARA_STR-NEWPAG sy-vline 
WA_HRD3PARA_STR-NEWSAC sy-vline 
WA_HRD3PARA_STR-DZUBT sy-vline 
WA_HRD3PARA_STR-TADAT sy-vline 
WA_HRD3PARA_STR-NOUPD sy-vline 
WA_HRD3PARA_STR-TREE sy-vline 
WA_HRD3PARA_STR-STLI sy-vline 
WA_HRD3PARA_STR-MDATUM sy-vline 
WA_HRD3PARA_STR-MZEIT sy-vline 
WA_HRD3PARA_STR-KVSCH sy-vline 
WA_HRD3PARA_STR-KVGES sy-vline 
WA_HRD3PARA_STR-B2ABNR sy-vline 
WA_HRD3PARA_STR-WERKS sy-vline 
WA_HRD3PARA_STR-BTRTL sy-vline 
WA_HRD3PARA_STR-SETFLAG sy-vline 
WA_HRD3PARA_STR-CFLID sy-vline 
WA_HRD3PARA_STR-DELNOT sy-vline 
WA_HRD3PARA_STR-PDATNR sy-vline 
WA_HRD3PARA_STR-PWDHNR sy-vline 
WA_HRD3PARA_STR-ANTIZ sy-vline 
WA_HRD3PARA_STR-PRDIAL sy-vline 
WA_HRD3PARA_STR-JAHRM sy-vline 
WA_HRD3PARA_STR-OAKEY sy-vline 
WA_HRD3PARA_STR-TSELALL sy-vline 
WA_HRD3PARA_STR-TSELSEL sy-vline 
WA_HRD3PARA_STR-NEWNUM sy-vline 
WA_HRD3PARA_STR-FELDNAME sy-vline 
WA_HRD3PARA_STR-FELDDATA sy-vline 
WA_HRD3PARA_STR-ABGLKK sy-vline      INTO ld_text SEPARATED BY SPACE.

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