ABAP Select data from SAP table PGR_APDD2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PGR_APDD2 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 PGR_APDD2. 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 PGR_APDD2 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_PGR_APDD2 TYPE STANDARD TABLE OF PGR_APDD2,
      WA_PGR_APDD2 TYPE PGR_APDD2,
      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: <PGR_APDD2> TYPE PGR_APDD2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PGR_APDD2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PGR_APDD2
  INTO TABLE IT_PGR_APDD2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PGR_APDD2
*  INTO TABLE @DATA(IT_PGR_APDD22).
*--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_PGR_APDD2 INDEX 1 INTO DATA(WA_PGR_APDD22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PGR_APDD2 ASSIGNING <PGR_APDD2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PGR_APDD2>-PERNR = 1.
<PGR_APDD2>-PYEAR = 1.
<PGR_APDD2>-PMONT = 1.
<PGR_APDD2>-FSCHD = 1.
<PGR_APDD2>-ALLDA = 1.

ENDLOOP.

LOOP AT IT_PGR_APDD2 INTO WA_PGR_APDD2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PGR_APDD2-WSUND, sy-vline,
  WA_PGR_APDD2-SPIKA, sy-vline,
  WA_PGR_APDD2-SPINS, sy-vline,
  WA_PGR_APDD2-KPK, sy-vline,
  WA_PGR_APDD2-BEGDA, sy-vline,
  WA_PGR_APDD2-ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PGR_APDD2 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_PGR_APDD2 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_PGR_APDD2 INTO WA_PGR_APDD2.


*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_PGR_APDD2_STR, 
PERNR TYPE STRING,
PYEAR TYPE STRING,
PMONT TYPE STRING,
FSCHD TYPE STRING,
ALLDA TYPE STRING,
WSUND TYPE STRING,
SPIKA TYPE STRING,
SPINS TYPE STRING,
KPK TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
PYTYP TYPE STRING,
INSUD TYPE STRING,
SALARY TYPE STRING,
GROSS TYPE STRING,
IKAEE TYPE STRING,
IKAER TYPE STRING,
IKASM TYPE STRING,
IKAPM TYPE STRING,
WAERS TYPE STRING,
PERIO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PGR_APDD2_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_PGR_APDD2_STR-PERNR sy-vline 
WA_PGR_APDD2_STR-PYEAR sy-vline 
WA_PGR_APDD2_STR-PMONT sy-vline 
WA_PGR_APDD2_STR-FSCHD sy-vline 
WA_PGR_APDD2_STR-ALLDA sy-vline 
WA_PGR_APDD2_STR-WSUND sy-vline 
WA_PGR_APDD2_STR-SPIKA sy-vline 
WA_PGR_APDD2_STR-SPINS sy-vline 
WA_PGR_APDD2_STR-KPK sy-vline 
WA_PGR_APDD2_STR-BEGDA sy-vline 
WA_PGR_APDD2_STR-ENDDA sy-vline 
WA_PGR_APDD2_STR-PYTYP sy-vline 
WA_PGR_APDD2_STR-INSUD sy-vline 
WA_PGR_APDD2_STR-SALARY sy-vline 
WA_PGR_APDD2_STR-GROSS sy-vline 
WA_PGR_APDD2_STR-IKAEE sy-vline 
WA_PGR_APDD2_STR-IKAER sy-vline 
WA_PGR_APDD2_STR-IKASM sy-vline 
WA_PGR_APDD2_STR-IKAPM sy-vline 
WA_PGR_APDD2_STR-WAERS sy-vline 
WA_PGR_APDD2_STR-PERIO sy-vline      INTO ld_text SEPARATED BY SPACE.

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