ABAP Select data from SAP table GRPRWDYNP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPRWDYNP
*  INTO TABLE @DATA(IT_GRPRWDYNP2).
*--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_GRPRWDYNP INDEX 1 INTO DATA(WA_GRPRWDYNP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPRWDYNP>-SETHEADER = 1.
<GRPRWDYNP>-KKEY_WORD = 1.
<GRPRWDYNP>-KSHORTNAME = 1.
<GRPRWDYNP>-KTITLE = 1.
<GRPRWDYNP>-RVALUE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPRWDYNP-SNAME, sy-vline,
  WA_GRPRWDYNP-KPRTCLASS, sy-vline,
  WA_GRPRWDYNP-AUTHGR, sy-vline,
  WA_GRPRWDYNP-SETLINE, sy-vline,
  WA_GRPRWDYNP-L_KEYWORD, sy-vline,
  WA_GRPRWDYNP-LSHORTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPRWDYNP 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_GRPRWDYNP 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_GRPRWDYNP INTO WA_GRPRWDYNP.


*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.

*Conversion exit ISOLA, internal->external for field OLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_GRPRWDYNP-OLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPRWDYNP-OLANGU.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_GRPRWDYNP_STR, 
SETHEADER TYPE STRING,
KKEY_WORD TYPE STRING,
KSHORTNAME TYPE STRING,
KTITLE TYPE STRING,
RVALUE TYPE STRING,
SNAME TYPE STRING,
KPRTCLASS TYPE STRING,
AUTHGR TYPE STRING,
SETLINE TYPE STRING,
L_KEYWORD TYPE STRING,
LSHORTNAME TYPE STRING,
VFROM TYPE STRING,
VTO TYPE STRING,
XSUPPRESS TYPE STRING,
PFEED TYPE STRING,
PFLAG TYPE STRING,
PMFLAG TYPE STRING,
LNAME TYPE STRING,
FNAME TYPE STRING,
PRTCLASS TYPE STRING,
DESCRIPT TYPE STRING,
FPDOWN TYPE STRING,
OLANGU TYPE STRING,
DEPOBJ TYPE STRING,
ACTION TYPE STRING,
MARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPRWDYNP_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_GRPRWDYNP_STR-SETHEADER sy-vline 
WA_GRPRWDYNP_STR-KKEY_WORD sy-vline 
WA_GRPRWDYNP_STR-KSHORTNAME sy-vline 
WA_GRPRWDYNP_STR-KTITLE sy-vline 
WA_GRPRWDYNP_STR-RVALUE sy-vline 
WA_GRPRWDYNP_STR-SNAME sy-vline 
WA_GRPRWDYNP_STR-KPRTCLASS sy-vline 
WA_GRPRWDYNP_STR-AUTHGR sy-vline 
WA_GRPRWDYNP_STR-SETLINE sy-vline 
WA_GRPRWDYNP_STR-L_KEYWORD sy-vline 
WA_GRPRWDYNP_STR-LSHORTNAME sy-vline 
WA_GRPRWDYNP_STR-VFROM sy-vline 
WA_GRPRWDYNP_STR-VTO sy-vline 
WA_GRPRWDYNP_STR-XSUPPRESS sy-vline 
WA_GRPRWDYNP_STR-PFEED sy-vline 
WA_GRPRWDYNP_STR-PFLAG sy-vline 
WA_GRPRWDYNP_STR-PMFLAG sy-vline 
WA_GRPRWDYNP_STR-LNAME sy-vline 
WA_GRPRWDYNP_STR-FNAME sy-vline 
WA_GRPRWDYNP_STR-PRTCLASS sy-vline 
WA_GRPRWDYNP_STR-DESCRIPT sy-vline 
WA_GRPRWDYNP_STR-FPDOWN sy-vline 
WA_GRPRWDYNP_STR-OLANGU sy-vline 
WA_GRPRWDYNP_STR-DEPOBJ sy-vline 
WA_GRPRWDYNP_STR-ACTION sy-vline 
WA_GRPRWDYNP_STR-MARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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