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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_VAS_ODM_ACT
*  INTO TABLE @DATA(IT_/SCWM/S_VAS_ODM_ACT2).
*--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_ODM_ACT INDEX 1 INTO DATA(WA_/SCWM/S_VAS_ODM_ACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_VAS_ODM_ACT>-VRSIOID = 1.
</SCWM/S_VAS_ODM_ACT>-ORDID = 1.
</SCWM/S_VAS_ODM_ACT>-ITMID = 1.
</SCWM/S_VAS_ODM_ACT>-ORTYPE = 1.
</SCWM/S_VAS_ODM_ACT>-ACT_SEQ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_VAS_ODM_ACT-PS_LEVEL, sy-vline,
  WA_/SCWM/S_VAS_ODM_ACT-COMPLQTY, sy-vline,
  WA_/SCWM/S_VAS_ODM_ACT-BASE_UNIT, sy-vline,
  WA_/SCWM/S_VAS_ODM_ACT-STATUS, sy-vline,
  WA_/SCWM/S_VAS_ODM_ACT-STARTED_AT, sy-vline,
  WA_/SCWM/S_VAS_ODM_ACT-ENDED_AT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_VAS_ODM_ACT 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_ODM_ACT 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_ODM_ACT INTO WA_/SCWM/S_VAS_ODM_ACT.


*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 CUNIT, internal->external for field BASE_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_VAS_ODM_ACT-BASE_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_VAS_ODM_ACT-BASE_UNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field UNIT_T
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_VAS_ODM_ACT-UNIT_T
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_VAS_ODM_ACT-UNIT_T.
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_ODM_ACT_STR, 
VRSIOID TYPE STRING,
ORDID TYPE STRING,
ITMID TYPE STRING,
ORTYPE TYPE STRING,
ACT_SEQ TYPE STRING,
PS_LEVEL TYPE STRING,
COMPLQTY TYPE STRING,
BASE_UNIT TYPE STRING,
STATUS TYPE STRING,
STARTED_AT TYPE STRING,
ENDED_AT TYPE STRING,
CHGUSR TYPE STRING,
CHGTST TYPE STRING,
WORKCENTER TYPE STRING,
PROCS TYPE STRING,
MATID TYPE STRING,
HUTYPGRP TYPE STRING,
PROCTY TYPE STRING,
KIT_ACT TYPE STRING,
PL_START_TIME TYPE STRING,
PL_END_TIME TYPE STRING,
EFFORT_CODE TYPE STRING,
FIXED_QUAN TYPE STRING,
PLDURA TYPE STRING,
UNIT_T TYPE STRING,
DUMMY_VASA_DB TYPE STRING,
OBJCHG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_VAS_ODM_ACT_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_ODM_ACT_STR-VRSIOID sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-ORDID sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-ITMID sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-ORTYPE sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-ACT_SEQ sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-PS_LEVEL sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-COMPLQTY sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-BASE_UNIT sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-STATUS sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-STARTED_AT sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-ENDED_AT sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-CHGUSR sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-CHGTST sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-WORKCENTER sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-PROCS sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-MATID sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-HUTYPGRP sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-PROCTY sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-KIT_ACT sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-PL_START_TIME sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-PL_END_TIME sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-EFFORT_CODE sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-FIXED_QUAN sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-PLDURA sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-UNIT_T sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-DUMMY_VASA_DB sy-vline 
WA_/SCWM/S_VAS_ODM_ACT_STR-OBJCHG sy-vline      INTO ld_text SEPARATED BY SPACE.

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