ABAP Select data from SAP table PPEPDV_PVB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPEPDV_PVB
*  INTO TABLE @DATA(IT_PPEPDV_PVB2).
*--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_PPEPDV_PVB INDEX 1 INTO DATA(WA_PPEPDV_PVB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPEPDV_PVB>-MANDT = 1.
<PPEPDV_PVB>-PNGUID = 1.
<PPEPDV_PVB>-PSACNT = 1.
<PPEPDV_PVB>-PVBCNT = 1.
<PPEPDV_PVB>-LOCID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPEPDV_PVB-MODE_GUID, sy-vline,
  WA_PPEPDV_PVB-CMP_GUID, sy-vline,
  WA_PPEPDV_PVB-CMP_OTYPE, sy-vline,
  WA_PPEPDV_PVB-PRVBE, sy-vline,
  WA_PPEPDV_PVB-LOCEXT, sy-vline,
  WA_PPEPDV_PVB-PRVBEEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPEPDV_PVB 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_PPEPDV_PVB 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_PPEPDV_PVB INTO WA_PPEPDV_PVB.


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

*Conversion exit ALPHA, internal->external for field CMP_PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPEPDV_PVB-CMP_PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPEPDV_PVB-CMP_PVNAME.
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_PPEPDV_PVB_STR, 
MANDT TYPE STRING,
PNGUID TYPE STRING,
PSACNT TYPE STRING,
PVBCNT TYPE STRING,
LOCID TYPE STRING,
MODE_GUID TYPE STRING,
CMP_GUID TYPE STRING,
CMP_OTYPE TYPE STRING,
PRVBE TYPE STRING,
LOCEXT TYPE STRING,
PRVBEEXT TYPE STRING,
ACT_PNAME TYPE STRING,
ACT_ALTNUM TYPE STRING,
CMP_PNAME TYPE STRING,
CMP_CLASS TYPE STRING,
CMP_CLASSTYPE TYPE STRING,
CMP_PVNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPEPDV_PVB_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_PPEPDV_PVB_STR-MANDT sy-vline 
WA_PPEPDV_PVB_STR-PNGUID sy-vline 
WA_PPEPDV_PVB_STR-PSACNT sy-vline 
WA_PPEPDV_PVB_STR-PVBCNT sy-vline 
WA_PPEPDV_PVB_STR-LOCID sy-vline 
WA_PPEPDV_PVB_STR-MODE_GUID sy-vline 
WA_PPEPDV_PVB_STR-CMP_GUID sy-vline 
WA_PPEPDV_PVB_STR-CMP_OTYPE sy-vline 
WA_PPEPDV_PVB_STR-PRVBE sy-vline 
WA_PPEPDV_PVB_STR-LOCEXT sy-vline 
WA_PPEPDV_PVB_STR-PRVBEEXT sy-vline 
WA_PPEPDV_PVB_STR-ACT_PNAME sy-vline 
WA_PPEPDV_PVB_STR-ACT_ALTNUM sy-vline 
WA_PPEPDV_PVB_STR-CMP_PNAME sy-vline 
WA_PPEPDV_PVB_STR-CMP_CLASS sy-vline 
WA_PPEPDV_PVB_STR-CMP_CLASSTYPE sy-vline 
WA_PPEPDV_PVB_STR-CMP_PVNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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