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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/VTPSASTAGE
*  INTO TABLE @DATA(IT_/SCWM/VTPSASTAGE2).
*--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/VTPSASTAGE INDEX 1 INTO DATA(WA_/SCWM/VTPSASTAGE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/VTPSASTAGE>-MANDT = 1.
</SCWM/VTPSASTAGE>-LGNUM = 1.
</SCWM/VTPSASTAGE>-ENTITLED = 1.
</SCWM/VTPSASTAGE>-PSA = 1.
</SCWM/VTPSASTAGE>-MATGRP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/VTPSASTAGE-MATID, sy-vline,
  WA_/SCWM/VTPSASTAGE-LGPLA, sy-vline,
  WA_/SCWM/VTPSASTAGE-FLG_STADOUT, sy-vline,
  WA_/SCWM/VTPSASTAGE-QUANCLA, sy-vline,
  WA_/SCWM/VTPSASTAGE-NOCONT, sy-vline,
  WA_/SCWM/VTPSASTAGE-MINNOCONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/VTPSASTAGE 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/VTPSASTAGE 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/VTPSASTAGE INTO WA_/SCWM/VTPSASTAGE.


*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 ENTITLED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/VTPSASTAGE-ENTITLED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/VTPSASTAGE-ENTITLED.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MDLPD, internal->external for field MATID
CALL FUNCTION 'CONVERSION_EXIT_MDLPD_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/VTPSASTAGE-MATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/VTPSASTAGE-MATID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/VTPSASTAGE-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/VTPSASTAGE-UNIT.
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/VTPSASTAGE_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
ENTITLED TYPE STRING,
PSA TYPE STRING,
MATGRP TYPE STRING,
MATID TYPE STRING,
LGPLA TYPE STRING,
FLG_STADOUT TYPE STRING,
QUANCLA TYPE STRING,
NOCONT TYPE STRING,
MINNOCONT TYPE STRING,
STAGQTY TYPE STRING,
MINQTYPSA TYPE STRING,
UNIT TYPE STRING,
QTYCALMODE TYPE STRING,
QTYCALMODE_STAGE TYPE STRING,
STAGING_METHOD TYPE STRING,
MES_IND TYPE STRING,
STAGE_WPT TYPE STRING,
RETURN_WPT TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/VTPSASTAGE_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/VTPSASTAGE_STR-MANDT sy-vline 
WA_/SCWM/VTPSASTAGE_STR-LGNUM sy-vline 
WA_/SCWM/VTPSASTAGE_STR-ENTITLED sy-vline 
WA_/SCWM/VTPSASTAGE_STR-PSA sy-vline 
WA_/SCWM/VTPSASTAGE_STR-MATGRP sy-vline 
WA_/SCWM/VTPSASTAGE_STR-MATID sy-vline 
WA_/SCWM/VTPSASTAGE_STR-LGPLA sy-vline 
WA_/SCWM/VTPSASTAGE_STR-FLG_STADOUT sy-vline 
WA_/SCWM/VTPSASTAGE_STR-QUANCLA sy-vline 
WA_/SCWM/VTPSASTAGE_STR-NOCONT sy-vline 
WA_/SCWM/VTPSASTAGE_STR-MINNOCONT sy-vline 
WA_/SCWM/VTPSASTAGE_STR-STAGQTY sy-vline 
WA_/SCWM/VTPSASTAGE_STR-MINQTYPSA sy-vline 
WA_/SCWM/VTPSASTAGE_STR-UNIT sy-vline 
WA_/SCWM/VTPSASTAGE_STR-QTYCALMODE sy-vline 
WA_/SCWM/VTPSASTAGE_STR-QTYCALMODE_STAGE sy-vline 
WA_/SCWM/VTPSASTAGE_STR-STAGING_METHOD sy-vline 
WA_/SCWM/VTPSASTAGE_STR-MES_IND sy-vline 
WA_/SCWM/VTPSASTAGE_STR-STAGE_WPT sy-vline 
WA_/SCWM/VTPSASTAGE_STR-RETURN_WPT sy-vline 
WA_/SCWM/VTPSASTAGE_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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