ABAP Select data from SAP table /SCWM/S_LM_PWL_CONTEXT_H_ELEM 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_LM_PWL_CONTEXT_H_ELEM 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_LM_PWL_CONTEXT_H_ELEM. 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_LM_PWL_CONTEXT_H_ELEM 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_LM_PWL_CONTEXT_H_ELEM TYPE STANDARD TABLE OF /SCWM/S_LM_PWL_CONTEXT_H_ELEM,
      WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM TYPE /SCWM/S_LM_PWL_CONTEXT_H_ELEM,
      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_LM_PWL_CONTEXT_H_ELEM> TYPE /SCWM/S_LM_PWL_CONTEXT_H_ELEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_LM_PWL_CONTEXT_H_ELEM
*  INTO TABLE @DATA(IT_/SCWM/S_LM_PWL_CONTEXT_H_ELEM2).
*--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_LM_PWL_CONTEXT_H_ELEM INDEX 1 INTO DATA(WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_LM_PWL_CONTEXT_H_ELEM>-S_ID = 1.
</SCWM/S_LM_PWL_CONTEXT_H_ELEM>-GUID = 1.
</SCWM/S_LM_PWL_CONTEXT_H_ELEM>-EXTERNAL_ID = 1.
</SCWM/S_LM_PWL_CONTEXT_H_ELEM>-S_BASE = 1.
</SCWM/S_LM_PWL_CONTEXT_H_ELEM>-EXTERNAL_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-CATEGORY, sy-vline,
  WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-SUB_CATEGORY, sy-vline,
  WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-TYPE_ID, sy-vline,
  WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-QUANTITY, sy-vline,
  WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-UNIT, sy-vline,
  WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-DESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM 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_LM_PWL_CONTEXT_H_ELEM 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_LM_PWL_CONTEXT_H_ELEM INTO WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM.


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

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

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

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

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

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

*Conversion exit HUID, internal->external for field DEST_HU
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-DEST_HU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM-DEST_HU.
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_LM_PWL_CONTEXT_H_ELEM_STR, 
S_ID TYPE STRING,
GUID TYPE STRING,
EXTERNAL_ID TYPE STRING,
S_BASE TYPE STRING,
EXTERNAL_ID TYPE STRING,
CATEGORY TYPE STRING,
SUB_CATEGORY TYPE STRING,
TYPE_ID TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
DESCRIPTION TYPE STRING,
CONTAINER_ID TYPE STRING,
TARGET TYPE STRING,
S_SAMPLE TYPE STRING,
DRAWN_ON TYPE STRING,
DRAWN_BY TYPE STRING,
PROCESSOR TYPE STRING,
SAMP_DRWP_GUID TYPE STRING,
SAMP_DRWU_GUID TYPE STRING,
GUID_DRWI TYPE STRING,
SAMP_DRWP_TYPE TYPE STRING,
DUMMY TYPE STRING,
PROCS TYPE STRING,
MOVEDQTY TYPE STRING,
MOVEDUNIT TYPE STRING,
POST TYPE STRING,
HUFROM TYPE STRING,
MATID TYPE STRING,
BATCHID TYPE STRING,
VFDAT TYPE STRING,
FUEXE TYPE STRING,
GUID_HU TYPE STRING,
GUID_STOCK TYPE STRING,
CNTQTY TYPE STRING,
CWQUAN TYPE STRING,
CWUNIT TYPE STRING,
CWEXACT TYPE STRING,
PROC_START TYPE STRING,
PROC_FINISH TYPE STRING,
TZONE TYPE STRING,
EXCCODE TYPE STRING,
DEST_HU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_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_LM_PWL_CONTEXT_H_ELEM_STR-S_ID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-GUID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-EXTERNAL_ID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-S_BASE sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-EXTERNAL_ID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-CATEGORY sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-SUB_CATEGORY sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-TYPE_ID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-QUANTITY sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-UNIT sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-DESCRIPTION sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-CONTAINER_ID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-TARGET sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-S_SAMPLE sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-DRAWN_ON sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-DRAWN_BY sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-PROCESSOR sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-SAMP_DRWP_GUID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-SAMP_DRWU_GUID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-GUID_DRWI sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-SAMP_DRWP_TYPE sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-DUMMY sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-PROCS sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-MOVEDQTY sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-MOVEDUNIT sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-POST sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-HUFROM sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-MATID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-BATCHID sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-VFDAT sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-FUEXE sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-GUID_HU sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-GUID_STOCK sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-CNTQTY sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-CWQUAN sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-CWUNIT sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-CWEXACT sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-PROC_START sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-PROC_FINISH sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-TZONE sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-EXCCODE sy-vline 
WA_/SCWM/S_LM_PWL_CONTEXT_H_ELEM_STR-DEST_HU sy-vline      INTO ld_text SEPARATED BY SPACE.

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