ABAP Select data from SAP table P2RN_HBMR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RN_HBMR 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 P2RN_HBMR. 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 P2RN_HBMR 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_P2RN_HBMR TYPE STANDARD TABLE OF P2RN_HBMR,
      WA_P2RN_HBMR TYPE P2RN_HBMR,
      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: <P2RN_HBMR> TYPE P2RN_HBMR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RN_HBMR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RN_HBMR
  INTO TABLE IT_P2RN_HBMR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RN_HBMR
*  INTO TABLE @DATA(IT_P2RN_HBMR2).
*--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_P2RN_HBMR INDEX 1 INTO DATA(WA_P2RN_HBMR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RN_HBMR ASSIGNING <P2RN_HBMR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RN_HBMR>-MANDT = 1.
<P2RN_HBMR>-DCT_PERNR = 1.
<P2RN_HBMR>-DCT_SEQNR = 1.
<P2RN_HBMR>-DCT_ROWID = 1.
<P2RN_HBMR>-HBMPR = 1.

ENDLOOP.

LOOP AT IT_P2RN_HBMR INTO WA_P2RN_HBMR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RN_HBMR-CALCR, sy-vline,
  WA_P2RN_HBMR-A142, sy-vline,
  WA_P2RN_HBMR-A143, sy-vline,
  WA_P2RN_HBMR-A144, sy-vline,
  WA_P2RN_HBMR-A145, sy-vline,
  WA_P2RN_HBMR-A402, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RN_HBMR 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_P2RN_HBMR 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_P2RN_HBMR INTO WA_P2RN_HBMR.


*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_P2RN_HBMR_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
HBMPR TYPE STRING,
CALCR TYPE STRING,
A142 TYPE STRING,
A143 TYPE STRING,
A144 TYPE STRING,
A145 TYPE STRING,
A402 TYPE STRING,
A406 TYPE STRING,
A412 TYPE STRING,
A416 TYPE STRING,
A41A TYPE STRING,
A422 TYPE STRING,
A426 TYPE STRING,
A404 TYPE STRING,
A40C TYPE STRING,
A40D TYPE STRING,
A40E TYPE STRING,
A40F TYPE STRING,
A40G TYPE STRING,
A40H TYPE STRING,
A40I TYPE STRING,
A41B TYPE STRING,
A41C TYPE STRING,
A41D TYPE STRING,
A41L TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RN_HBMR_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_P2RN_HBMR_STR-MANDT sy-vline 
WA_P2RN_HBMR_STR-DCT_PERNR sy-vline 
WA_P2RN_HBMR_STR-DCT_SEQNR sy-vline 
WA_P2RN_HBMR_STR-DCT_ROWID sy-vline 
WA_P2RN_HBMR_STR-HBMPR sy-vline 
WA_P2RN_HBMR_STR-CALCR sy-vline 
WA_P2RN_HBMR_STR-A142 sy-vline 
WA_P2RN_HBMR_STR-A143 sy-vline 
WA_P2RN_HBMR_STR-A144 sy-vline 
WA_P2RN_HBMR_STR-A145 sy-vline 
WA_P2RN_HBMR_STR-A402 sy-vline 
WA_P2RN_HBMR_STR-A406 sy-vline 
WA_P2RN_HBMR_STR-A412 sy-vline 
WA_P2RN_HBMR_STR-A416 sy-vline 
WA_P2RN_HBMR_STR-A41A sy-vline 
WA_P2RN_HBMR_STR-A422 sy-vline 
WA_P2RN_HBMR_STR-A426 sy-vline 
WA_P2RN_HBMR_STR-A404 sy-vline 
WA_P2RN_HBMR_STR-A40C sy-vline 
WA_P2RN_HBMR_STR-A40D sy-vline 
WA_P2RN_HBMR_STR-A40E sy-vline 
WA_P2RN_HBMR_STR-A40F sy-vline 
WA_P2RN_HBMR_STR-A40G sy-vline 
WA_P2RN_HBMR_STR-A40H sy-vline 
WA_P2RN_HBMR_STR-A40I sy-vline 
WA_P2RN_HBMR_STR-A41B sy-vline 
WA_P2RN_HBMR_STR-A41C sy-vline 
WA_P2RN_HBMR_STR-A41D sy-vline 
WA_P2RN_HBMR_STR-A41L sy-vline      INTO ld_text SEPARATED BY SPACE.

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