ABAP Select data from SAP table HRPFD00_DOCLINE_DETAIL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRPFD00_DOCLINE_DETAIL 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 HRPFD00_DOCLINE_DETAIL. 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 HRPFD00_DOCLINE_DETAIL 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_HRPFD00_DOCLINE_DETAIL TYPE STANDARD TABLE OF HRPFD00_DOCLINE_DETAIL,
      WA_HRPFD00_DOCLINE_DETAIL TYPE HRPFD00_DOCLINE_DETAIL,
      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: <HRPFD00_DOCLINE_DETAIL> TYPE HRPFD00_DOCLINE_DETAIL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRPFD00_DOCLINE_DETAIL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRPFD00_DOCLINE_DETAIL
  INTO TABLE IT_HRPFD00_DOCLINE_DETAIL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPFD00_DOCLINE_DETAIL
*  INTO TABLE @DATA(IT_HRPFD00_DOCLINE_DETAIL2).
*--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_HRPFD00_DOCLINE_DETAIL INDEX 1 INTO DATA(WA_HRPFD00_DOCLINE_DETAIL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRPFD00_DOCLINE_DETAIL ASSIGNING <HRPFD00_DOCLINE_DETAIL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPFD00_DOCLINE_DETAIL>-PERNR = 1.
<HRPFD00_DOCLINE_DETAIL>-ENAME = 1.
<HRPFD00_DOCLINE_DETAIL>-KONNR = 1.
<HRPFD00_DOCLINE_DETAIL>-VTEXT = 1.
<HRPFD00_DOCLINE_DETAIL>-VALUS = 1.

ENDLOOP.

LOOP AT IT_HRPFD00_DOCLINE_DETAIL INTO WA_HRPFD00_DOCLINE_DETAIL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPFD00_DOCLINE_DETAIL-VALUH, sy-vline,
  WA_HRPFD00_DOCLINE_DETAIL-WAERS, sy-vline,
  WA_HRPFD00_DOCLINE_DETAIL-BUDAT, sy-vline,
  WA_HRPFD00_DOCLINE_DETAIL-SEQNR, sy-vline,
  WA_HRPFD00_DOCLINE_DETAIL-MOLGA, sy-vline,
  WA_HRPFD00_DOCLINE_DETAIL-EVTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPFD00_DOCLINE_DETAIL 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_HRPFD00_DOCLINE_DETAIL 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_HRPFD00_DOCLINE_DETAIL INTO WA_HRPFD00_DOCLINE_DETAIL.


*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_HRPFD00_DOCLINE_DETAIL_STR, 
PERNR TYPE STRING,
ENAME TYPE STRING,
KONNR TYPE STRING,
VTEXT TYPE STRING,
VALUS TYPE STRING,
VALUH TYPE STRING,
WAERS TYPE STRING,
BUDAT TYPE STRING,
SEQNR TYPE STRING,
MOLGA TYPE STRING,
EVTYP TYPE STRING,
RUNID TYPE STRING,
VADAT TYPE STRING,
MCINF TYPE STRING,
MCODE TYPE STRING,
SYMKO TYPE STRING,
BUKRS TYPE STRING,
KSMOD TYPE STRING,
ACMOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPFD00_DOCLINE_DETAIL_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_HRPFD00_DOCLINE_DETAIL_STR-PERNR sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-ENAME sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-KONNR sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-VTEXT sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-VALUS sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-VALUH sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-WAERS sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-BUDAT sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-SEQNR sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-MOLGA sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-EVTYP sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-RUNID sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-VADAT sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-MCINF sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-MCODE sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-SYMKO sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-BUKRS sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-KSMOD sy-vline 
WA_HRPFD00_DOCLINE_DETAIL_STR-ACMOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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