ABAP Select data from SAP table P2RU_GRORD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RU_GRORD 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 P2RU_GRORD. 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 P2RU_GRORD 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_P2RU_GRORD TYPE STANDARD TABLE OF P2RU_GRORD,
      WA_P2RU_GRORD TYPE P2RU_GRORD,
      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: <P2RU_GRORD> TYPE P2RU_GRORD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RU_GRORD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RU_GRORD
  INTO TABLE IT_P2RU_GRORD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RU_GRORD
*  INTO TABLE @DATA(IT_P2RU_GRORD2).
*--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_P2RU_GRORD INDEX 1 INTO DATA(WA_P2RU_GRORD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RU_GRORD ASSIGNING <P2RU_GRORD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RU_GRORD>-MANDT = 1.
<P2RU_GRORD>-DCT_PERNR = 1.
<P2RU_GRORD>-DCT_SEQNR = 1.
<P2RU_GRORD>-DCT_ROWID = 1.
<P2RU_GRORD>-GRNUM = 1.

ENDLOOP.

LOOP AT IT_P2RU_GRORD INTO WA_P2RU_GRORD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RU_GRORD-OBJPS, sy-vline,
  WA_P2RU_GRORD-SPINS, sy-vline,
  WA_P2RU_GRORD-ORDCD, sy-vline,
  WA_P2RU_GRORD-OCATE, sy-vline,
  WA_P2RU_GRORD-OPRIO, sy-vline,
  WA_P2RU_GRORD-ORDLG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RU_GRORD 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_P2RU_GRORD 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_P2RU_GRORD INTO WA_P2RU_GRORD.


*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_P2RU_GRORD_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
GRNUM TYPE STRING,
OBJPS TYPE STRING,
SPINS TYPE STRING,
ORDCD TYPE STRING,
OCATE TYPE STRING,
OPRIO TYPE STRING,
ORDLG TYPE STRING,
RULID TYPE STRING,
IBALN TYPE STRING,
RBALN TYPE STRING,
DEINF TYPE STRING,
DEVEN TYPE STRING,
LIMIT TYPE STRING,
LIMKU TYPE STRING,
LIMOF TYPE STRING,
LIMST TYPE STRING,
DISPN TYPE STRING,
DISKU TYPE STRING,
GROSS TYPE STRING,
GROKU TYPE STRING,
FEDMI TYPE STRING,
LIM12 TYPE STRING,
SPRUL TYPE STRING,
LEVY TYPE STRING,
ADDAT TYPE STRING,
TTD TYPE STRING,
MTD TYPE STRING,
PTD TYPE STRING,
YTD TYPE STRING,
HISTORIC TYPE STRING,
DEVEN2 TYPE STRING,
DINF2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RU_GRORD_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_P2RU_GRORD_STR-MANDT sy-vline 
WA_P2RU_GRORD_STR-DCT_PERNR sy-vline 
WA_P2RU_GRORD_STR-DCT_SEQNR sy-vline 
WA_P2RU_GRORD_STR-DCT_ROWID sy-vline 
WA_P2RU_GRORD_STR-GRNUM sy-vline 
WA_P2RU_GRORD_STR-OBJPS sy-vline 
WA_P2RU_GRORD_STR-SPINS sy-vline 
WA_P2RU_GRORD_STR-ORDCD sy-vline 
WA_P2RU_GRORD_STR-OCATE sy-vline 
WA_P2RU_GRORD_STR-OPRIO sy-vline 
WA_P2RU_GRORD_STR-ORDLG sy-vline 
WA_P2RU_GRORD_STR-RULID sy-vline 
WA_P2RU_GRORD_STR-IBALN sy-vline 
WA_P2RU_GRORD_STR-RBALN sy-vline 
WA_P2RU_GRORD_STR-DEINF sy-vline 
WA_P2RU_GRORD_STR-DEVEN sy-vline 
WA_P2RU_GRORD_STR-LIMIT sy-vline 
WA_P2RU_GRORD_STR-LIMKU sy-vline 
WA_P2RU_GRORD_STR-LIMOF sy-vline 
WA_P2RU_GRORD_STR-LIMST sy-vline 
WA_P2RU_GRORD_STR-DISPN sy-vline 
WA_P2RU_GRORD_STR-DISKU sy-vline 
WA_P2RU_GRORD_STR-GROSS sy-vline 
WA_P2RU_GRORD_STR-GROKU sy-vline 
WA_P2RU_GRORD_STR-FEDMI sy-vline 
WA_P2RU_GRORD_STR-LIM12 sy-vline 
WA_P2RU_GRORD_STR-SPRUL sy-vline 
WA_P2RU_GRORD_STR-LEVY sy-vline 
WA_P2RU_GRORD_STR-ADDAT sy-vline 
WA_P2RU_GRORD_STR-TTD sy-vline 
WA_P2RU_GRORD_STR-MTD sy-vline 
WA_P2RU_GRORD_STR-PTD sy-vline 
WA_P2RU_GRORD_STR-YTD sy-vline 
WA_P2RU_GRORD_STR-HISTORIC sy-vline 
WA_P2RU_GRORD_STR-DEVEN2 sy-vline 
WA_P2RU_GRORD_STR-DINF2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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