ABAP Select data from SAP table PPE_POSVID_EXPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPE_POSVID_EXPL
*  INTO TABLE @DATA(IT_PPE_POSVID_EXPL2).
*--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_PPE_POSVID_EXPL INDEX 1 INTO DATA(WA_PPE_POSVID_EXPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPE_POSVID_EXPL>-MANDT = 1.
<PPE_POSVID_EXPL>-PVGUID = 1.
<PPE_POSVID_EXPL>-PVNAME = 1.
<PPE_POSVID_EXPL>-NAMEID = 1.
<PPE_POSVID_EXPL>-PNGUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPE_POSVID_EXPL-PVTYPE, sy-vline,
  WA_PPE_POSVID_EXPL-APPLOBJ_TYPE, sy-vline,
  WA_PPE_POSVID_EXPL-TIMSTMP, sy-vline,
  WA_PPE_POSVID_EXPL-HISTFLG, sy-vline,
  WA_PPE_POSVID_EXPL-CREADAT, sy-vline,
  WA_PPE_POSVID_EXPL-CREABY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPE_POSVID_EXPL 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_PPE_POSVID_EXPL 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_PPE_POSVID_EXPL INTO WA_PPE_POSVID_EXPL.


*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 PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPE_POSVID_EXPL-PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPE_POSVID_EXPL-PVNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPE_POSVID_EXPL-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPE_POSVID_EXPL-LOGSYS.
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_PPE_POSVID_EXPL_STR, 
MANDT TYPE STRING,
PVGUID TYPE STRING,
PVNAME TYPE STRING,
NAMEID TYPE STRING,
PNGUID TYPE STRING,
PVTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
TIMSTMP TYPE STRING,
HISTFLG TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
PHANTOM TYPE STRING,
VALID TYPE STRING,
HEADER_PV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPE_POSVID_EXPL_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_PPE_POSVID_EXPL_STR-MANDT sy-vline 
WA_PPE_POSVID_EXPL_STR-PVGUID sy-vline 
WA_PPE_POSVID_EXPL_STR-PVNAME sy-vline 
WA_PPE_POSVID_EXPL_STR-NAMEID sy-vline 
WA_PPE_POSVID_EXPL_STR-PNGUID sy-vline 
WA_PPE_POSVID_EXPL_STR-PVTYPE sy-vline 
WA_PPE_POSVID_EXPL_STR-APPLOBJ_TYPE sy-vline 
WA_PPE_POSVID_EXPL_STR-TIMSTMP sy-vline 
WA_PPE_POSVID_EXPL_STR-HISTFLG sy-vline 
WA_PPE_POSVID_EXPL_STR-CREADAT sy-vline 
WA_PPE_POSVID_EXPL_STR-CREABY sy-vline 
WA_PPE_POSVID_EXPL_STR-CHNGDAT sy-vline 
WA_PPE_POSVID_EXPL_STR-CHNGBY sy-vline 
WA_PPE_POSVID_EXPL_STR-LOGSYS sy-vline 
WA_PPE_POSVID_EXPL_STR-PHANTOM sy-vline 
WA_PPE_POSVID_EXPL_STR-VALID sy-vline 
WA_PPE_POSVID_EXPL_STR-HEADER_PV sy-vline      INTO ld_text SEPARATED BY SPACE.

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