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

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_VAS_HEADER
*  INTO TABLE @DATA(IT_/SCWM/S_VAS_HEADER2).
*--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/S_VAS_HEADER INDEX 1 INTO DATA(WA_/SCWM/S_VAS_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_VAS_HEADER>-GUID_PS = 1.
</SCWM/S_VAS_HEADER>-STATUS = 1.
</SCWM/S_VAS_HEADER>-EFFORT_CODE = 1.
</SCWM/S_VAS_HEADER>-PL_COMPL_DATE = 1.
</SCWM/S_VAS_HEADER>-VAS_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_VAS_HEADER-CREUSR, sy-vline,
  WA_/SCWM/S_VAS_HEADER-CRETST, sy-vline,
  WA_/SCWM/S_VAS_HEADER-CHGUSR, sy-vline,
  WA_/SCWM/S_VAS_HEADER-CHGTST, sy-vline,
  WA_/SCWM/S_VAS_HEADER-CHGMODE, sy-vline,
  WA_/SCWM/S_VAS_HEADER-PERFORMER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_VAS_HEADER 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/S_VAS_HEADER 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/S_VAS_HEADER INTO WA_/SCWM/S_VAS_HEADER.


*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 PSID, internal->external for field GUID_PS
CALL FUNCTION 'CONVERSION_EXIT_PSID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_VAS_HEADER-GUID_PS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_VAS_HEADER-GUID_PS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field PL_COMPL_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_VAS_HEADER-PL_COMPL_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_VAS_HEADER-PL_COMPL_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CRETST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_VAS_HEADER-CRETST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_VAS_HEADER-CRETST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHGTST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_VAS_HEADER-CHGTST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_VAS_HEADER-CHGTST.
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/S_VAS_HEADER_STR, 
GUID_PS TYPE STRING,
STATUS TYPE STRING,
EFFORT_CODE TYPE STRING,
PL_COMPL_DATE TYPE STRING,
VAS_TYPE TYPE STRING,
CREUSR TYPE STRING,
CRETST TYPE STRING,
CHGUSR TYPE STRING,
CHGTST TYPE STRING,
CHGMODE TYPE STRING,
PERFORMER TYPE STRING,
VAS_ART TYPE STRING,
ACC_CAT TYPE STRING,
ACC_OBJ TYPE STRING,
ACC_OBJ_SUB TYPE STRING,
DUMMY_VASH_DB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_VAS_HEADER_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/S_VAS_HEADER_STR-GUID_PS sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-STATUS sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-EFFORT_CODE sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-PL_COMPL_DATE sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-VAS_TYPE sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-CREUSR sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-CRETST sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-CHGUSR sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-CHGTST sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-CHGMODE sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-PERFORMER sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-VAS_ART sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-ACC_CAT sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-ACC_OBJ sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-ACC_OBJ_SUB sy-vline 
WA_/SCWM/S_VAS_HEADER_STR-DUMMY_VASH_DB sy-vline      INTO ld_text SEPARATED BY SPACE.

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