ABAP Select data from SAP table PINPEG2 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PINPEG2 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 PINPEG2. 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 PINPEG2 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_PINPEG2 TYPE STANDARD TABLE OF PINPEG2,
      WA_PINPEG2 TYPE PINPEG2,
      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: <PINPEG2> TYPE PINPEG2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PINPEG2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PINPEG2
  INTO TABLE IT_PINPEG2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PINPEG2
*  INTO TABLE @DATA(IT_PINPEG22).
*--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_PINPEG2 INDEX 1 INTO DATA(WA_PINPEG22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PINPEG2 ASSIGNING <PINPEG2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PINPEG2>-PARENT_KEY = 1.
<PINPEG2>-ROW_KEY = 1.
<PINPEG2>-EXPANDED = 1.
<PINPEG2>-IS_LEAF = 1.
<PINPEG2>-TEXT = 1.

ENDLOOP.

LOOP AT IT_PINPEG2 INTO WA_PINPEG2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PINPEG2-CHILDREN_LOADED, sy-vline,
  WA_PINPEG2-IMAGE_SRC, sy-vline,
  WA_PINPEG2-GRPID, sy-vline,
  WA_PINPEG2-POTYP, sy-vline,
  WA_PINPEG2-REGUI, sy-vline,
  WA_PINPEG2-POGUI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PINPEG2 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_PINPEG2 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_PINPEG2 INTO WA_PINPEG2.


*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_PINPEG2_STR, 
PARENT_KEY TYPE STRING,
ROW_KEY TYPE STRING,
EXPANDED TYPE STRING,
IS_LEAF TYPE STRING,
TEXT TYPE STRING,
CHILDREN_LOADED TYPE STRING,
IMAGE_SRC TYPE STRING,
GRPID TYPE STRING,
POTYP TYPE STRING,
REGUI TYPE STRING,
POGUI TYPE STRING,
VERSN TYPE STRING,
AREKY TYPE STRING,
TMPID TYPE STRING,
RESTS TYPE STRING,
PERNR TYPE STRING,
CREON TYPE STRING,
CHAON TYPE STRING,
DESCR TYPE STRING,
RESE1 TYPE STRING,
NEW_ENABLED_REF TYPE STRING,
DETAIL_ENABLED_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PINPEG2_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_PINPEG2_STR-PARENT_KEY sy-vline 
WA_PINPEG2_STR-ROW_KEY sy-vline 
WA_PINPEG2_STR-EXPANDED sy-vline 
WA_PINPEG2_STR-IS_LEAF sy-vline 
WA_PINPEG2_STR-TEXT sy-vline 
WA_PINPEG2_STR-CHILDREN_LOADED sy-vline 
WA_PINPEG2_STR-IMAGE_SRC sy-vline 
WA_PINPEG2_STR-GRPID sy-vline 
WA_PINPEG2_STR-POTYP sy-vline 
WA_PINPEG2_STR-REGUI sy-vline 
WA_PINPEG2_STR-POGUI sy-vline 
WA_PINPEG2_STR-VERSN sy-vline 
WA_PINPEG2_STR-AREKY sy-vline 
WA_PINPEG2_STR-TMPID sy-vline 
WA_PINPEG2_STR-RESTS sy-vline 
WA_PINPEG2_STR-PERNR sy-vline 
WA_PINPEG2_STR-CREON sy-vline 
WA_PINPEG2_STR-CHAON sy-vline 
WA_PINPEG2_STR-DESCR sy-vline 
WA_PINPEG2_STR-RESE1 sy-vline 
WA_PINPEG2_STR-NEW_ENABLED_REF sy-vline 
WA_PINPEG2_STR-DETAIL_ENABLED_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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