ABAP Select data from SAP table PPEGIMAP_CORE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPEGIMAP_CORE
*  INTO TABLE @DATA(IT_PPEGIMAP_CORE2).
*--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_PPEGIMAP_CORE INDEX 1 INTO DATA(WA_PPEGIMAP_CORE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPEGIMAP_CORE>-TREE_ID = 1.
<PPEGIMAP_CORE>-NODE_KEY = 1.
<PPEGIMAP_CORE>-OBJ_ID = 1.
<PPEGIMAP_CORE>-NODE_NAME = 1.
<PPEGIMAP_CORE>-PARENT_KEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPEGIMAP_CORE-PARENT_OBJ_ID, sy-vline,
  WA_PPEGIMAP_CORE-OTYPE, sy-vline,
  WA_PPEGIMAP_CORE-PXTYPE, sy-vline,
  WA_PPEGIMAP_CORE-APPLOBJ_TYPE, sy-vline,
  WA_PPEGIMAP_CORE-PNGUID, sy-vline,
  WA_PPEGIMAP_CORE-PAGUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPEGIMAP_CORE 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_PPEGIMAP_CORE 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_PPEGIMAP_CORE INTO WA_PPEGIMAP_CORE.


*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 ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPEGIMAP_CORE-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPEGIMAP_CORE-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR_REL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPEGIMAP_CORE-AENNR_REL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPEGIMAP_CORE-AENNR_REL.
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_PPEGIMAP_CORE_STR, 
TREE_ID TYPE STRING,
NODE_KEY TYPE STRING,
OBJ_ID TYPE STRING,
NODE_NAME TYPE STRING,
PARENT_KEY TYPE STRING,
PARENT_OBJ_ID TYPE STRING,
OTYPE TYPE STRING,
PXTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
PNGUID TYPE STRING,
PAGUID TYPE STRING,
PVGUID TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
DATUV TYPE STRING,
PRTYPE TYPE STRING,
PRGUID TYPE STRING,
AENNR_REL TYPE STRING,
DELFLG_REL TYPE STRING,
EXOBJ_ID TYPE STRING,
CLINT TYPE STRING,
ICON TYPE STRING,
RELAT_NODE_KEY TYPE STRING,
SINGULAR_FIELD TYPE STRING,
SINGULAR_APPL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPEGIMAP_CORE_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_PPEGIMAP_CORE_STR-TREE_ID sy-vline 
WA_PPEGIMAP_CORE_STR-NODE_KEY sy-vline 
WA_PPEGIMAP_CORE_STR-OBJ_ID sy-vline 
WA_PPEGIMAP_CORE_STR-NODE_NAME sy-vline 
WA_PPEGIMAP_CORE_STR-PARENT_KEY sy-vline 
WA_PPEGIMAP_CORE_STR-PARENT_OBJ_ID sy-vline 
WA_PPEGIMAP_CORE_STR-OTYPE sy-vline 
WA_PPEGIMAP_CORE_STR-PXTYPE sy-vline 
WA_PPEGIMAP_CORE_STR-APPLOBJ_TYPE sy-vline 
WA_PPEGIMAP_CORE_STR-PNGUID sy-vline 
WA_PPEGIMAP_CORE_STR-PAGUID sy-vline 
WA_PPEGIMAP_CORE_STR-PVGUID sy-vline 
WA_PPEGIMAP_CORE_STR-AENNR sy-vline 
WA_PPEGIMAP_CORE_STR-DELFLG sy-vline 
WA_PPEGIMAP_CORE_STR-DATUV sy-vline 
WA_PPEGIMAP_CORE_STR-PRTYPE sy-vline 
WA_PPEGIMAP_CORE_STR-PRGUID sy-vline 
WA_PPEGIMAP_CORE_STR-AENNR_REL sy-vline 
WA_PPEGIMAP_CORE_STR-DELFLG_REL sy-vline 
WA_PPEGIMAP_CORE_STR-EXOBJ_ID sy-vline 
WA_PPEGIMAP_CORE_STR-CLINT sy-vline 
WA_PPEGIMAP_CORE_STR-ICON sy-vline 
WA_PPEGIMAP_CORE_STR-RELAT_NODE_KEY sy-vline 
WA_PPEGIMAP_CORE_STR-SINGULAR_FIELD sy-vline 
WA_PPEGIMAP_CORE_STR-SINGULAR_APPL sy-vline      INTO ld_text SEPARATED BY SPACE.

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