ABAP Select data from SAP table PPPOS_REV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPPOS_REV
*  INTO TABLE @DATA(IT_PPPOS_REV2).
*--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_PPPOS_REV INDEX 1 INTO DATA(WA_PPPOS_REV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPPOS_REV>-CLIENT = 1.
<PPPOS_REV>-GPART = 1.
<PPPOS_REV>-VTREF = 1.
<PPPOS_REV>-POSNR = 1.
<PPPOS_REV>-VONDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPPOS_REV-BISDATE, sy-vline,
  WA_PPPOS_REV-STORNOTO, sy-vline,
  WA_PPPOS_REV-BEENDEN, sy-vline,
  WA_PPPOS_REV-ARCHI, sy-vline,
  WA_PPPOS_REV-STORNODATE, sy-vline,
  WA_PPPOS_REV-STMET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPPOS_REV 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_PPPOS_REV 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_PPPOS_REV INTO WA_PPPOS_REV.


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

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

*Conversion exit ALPHA, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPPOS_REV-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPPOS_REV-POSNR.
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_PPPOS_REV_STR, 
CLIENT TYPE STRING,
GPART TYPE STRING,
VTREF TYPE STRING,
POSNR TYPE STRING,
VONDATE TYPE STRING,
BISDATE TYPE STRING,
STORNOTO TYPE STRING,
BEENDEN TYPE STRING,
ARCHI TYPE STRING,
STORNODATE TYPE STRING,
STMET TYPE STRING,
ORIGIN TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPPOS_REV_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_PPPOS_REV_STR-CLIENT sy-vline 
WA_PPPOS_REV_STR-GPART sy-vline 
WA_PPPOS_REV_STR-VTREF sy-vline 
WA_PPPOS_REV_STR-POSNR sy-vline 
WA_PPPOS_REV_STR-VONDATE sy-vline 
WA_PPPOS_REV_STR-BISDATE sy-vline 
WA_PPPOS_REV_STR-STORNOTO sy-vline 
WA_PPPOS_REV_STR-BEENDEN sy-vline 
WA_PPPOS_REV_STR-ARCHI sy-vline 
WA_PPPOS_REV_STR-STORNODATE sy-vline 
WA_PPPOS_REV_STR-STMET sy-vline 
WA_PPPOS_REV_STR-ORIGIN sy-vline 
WA_PPPOS_REV_STR-LAUFD sy-vline 
WA_PPPOS_REV_STR-LAUFI sy-vline      INTO ld_text SEPARATED BY SPACE.

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