ABAP Select data from SAP table /SCWM/HU_PPF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCWM/HU_PPF 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 /SCWM/HU_PPF. 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 /SCWM/HU_PPF 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_/SCWM/HU_PPF TYPE STANDARD TABLE OF /SCWM/HU_PPF,
      WA_/SCWM/HU_PPF TYPE /SCWM/HU_PPF,
      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: </SCWM/HU_PPF> TYPE /SCWM/HU_PPF.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCWM/HU_PPF
  INTO TABLE IT_/SCWM/HU_PPF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/HU_PPF
*  INTO TABLE @DATA(IT_/SCWM/HU_PPF2).
*--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_/SCWM/HU_PPF INDEX 1 INTO DATA(WA_/SCWM/HU_PPF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCWM/HU_PPF ASSIGNING </SCWM/HU_PPF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/HU_PPF>-MANDT = 1.
</SCWM/HU_PPF>-LGNUM = 1.
</SCWM/HU_PPF>-HUIDENT = 1.
</SCWM/HU_PPF>-VARNUMH = 1.
</SCWM/HU_PPF>-GUID = 1.

ENDLOOP.

LOOP AT IT_/SCWM/HU_PPF INTO WA_/SCWM/HU_PPF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/HU_PPF-RES_VALID, sy-vline,
  WA_/SCWM/HU_PPF-LDEST, sy-vline,
  WA_/SCWM/HU_PPF-SPOOL, sy-vline,
  WA_/SCWM/HU_PPF-NOLBL, sy-vline,
  WA_/SCWM/HU_PPF-TTYPE, sy-vline,
  WA_/SCWM/HU_PPF-NOEXE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/HU_PPF 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_/SCWM/HU_PPF 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_/SCWM/HU_PPF INTO WA_/SCWM/HU_PPF.


*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 HUID, internal->external for field HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/HU_PPF-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/HU_PPF-HUIDENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field LDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/HU_PPF-LDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/HU_PPF-LDEST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field PH_LDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/HU_PPF-PH_LDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/HU_PPF-PH_LDEST.
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_/SCWM/HU_PPF_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
HUIDENT TYPE STRING,
VARNUMH TYPE STRING,
GUID TYPE STRING,
RES_VALID TYPE STRING,
LDEST TYPE STRING,
SPOOL TYPE STRING,
NOLBL TYPE STRING,
TTYPE TYPE STRING,
NOEXE TYPE STRING,
FORM_GROUP TYPE STRING,
PH_FORMU TYPE STRING,
PH_LDEST TYPE STRING,
PH_KZPOOL TYPE STRING,
PH_SPOOL TYPE STRING,
PH_PPFACTDEF TYPE STRING,
PH_NOPRI TYPE STRING,
PH_NOLBL TYPE STRING,
PH_COND TYPE STRING,
PH_SEQ TYPE STRING,
PH_RFID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/HU_PPF_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_/SCWM/HU_PPF_STR-MANDT sy-vline 
WA_/SCWM/HU_PPF_STR-LGNUM sy-vline 
WA_/SCWM/HU_PPF_STR-HUIDENT sy-vline 
WA_/SCWM/HU_PPF_STR-VARNUMH sy-vline 
WA_/SCWM/HU_PPF_STR-GUID sy-vline 
WA_/SCWM/HU_PPF_STR-RES_VALID sy-vline 
WA_/SCWM/HU_PPF_STR-LDEST sy-vline 
WA_/SCWM/HU_PPF_STR-SPOOL sy-vline 
WA_/SCWM/HU_PPF_STR-NOLBL sy-vline 
WA_/SCWM/HU_PPF_STR-TTYPE sy-vline 
WA_/SCWM/HU_PPF_STR-NOEXE sy-vline 
WA_/SCWM/HU_PPF_STR-FORM_GROUP sy-vline 
WA_/SCWM/HU_PPF_STR-PH_FORMU sy-vline 
WA_/SCWM/HU_PPF_STR-PH_LDEST sy-vline 
WA_/SCWM/HU_PPF_STR-PH_KZPOOL sy-vline 
WA_/SCWM/HU_PPF_STR-PH_SPOOL sy-vline 
WA_/SCWM/HU_PPF_STR-PH_PPFACTDEF sy-vline 
WA_/SCWM/HU_PPF_STR-PH_NOPRI sy-vline 
WA_/SCWM/HU_PPF_STR-PH_NOLBL sy-vline 
WA_/SCWM/HU_PPF_STR-PH_COND sy-vline 
WA_/SCWM/HU_PPF_STR-PH_SEQ sy-vline 
WA_/SCWM/HU_PPF_STR-PH_RFID sy-vline      INTO ld_text SEPARATED BY SPACE.

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