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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_ACTA_M
*  INTO TABLE @DATA(IT_/SCWM/S_ACTA_M2).
*--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_ACTA_M INDEX 1 INTO DATA(WA_/SCWM/S_ACTA_M2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_ACTA_M>-MANDT = 1.
</SCWM/S_ACTA_M>-LGNUM = 1.
</SCWM/S_ACTA_M>-AAREA = 1.
</SCWM/S_ACTA_M>-RANK = 1.
</SCWM/S_ACTA_M>-LGTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_ACTA_M-AISLE_SRT, sy-vline,
  WA_/SCWM/S_ACTA_M-AISLE_END, sy-vline,
  WA_/SCWM/S_ACTA_M-STACK_SRT, sy-vline,
  WA_/SCWM/S_ACTA_M-STACK_END, sy-vline,
  WA_/SCWM/S_ACTA_M-LEVEL_SRT, sy-vline,
  WA_/SCWM/S_ACTA_M-LEVEL_END, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_ACTA_M 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_ACTA_M 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_ACTA_M INTO WA_/SCWM/S_ACTA_M.


*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.
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_ACTA_M_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
AAREA TYPE STRING,
RANK TYPE STRING,
LGTYP TYPE STRING,
AISLE_SRT TYPE STRING,
AISLE_END TYPE STRING,
STACK_SRT TYPE STRING,
STACK_END TYPE STRING,
LEVEL_SRT TYPE STRING,
LEVEL_END TYPE STRING,
BINSC_SRT TYPE STRING,
BINSC_END TYPE STRING,
DEPTH_SRT TYPE STRING,
DEPTH_END TYPE STRING,
DSTGRP TYPE STRING,
ILTYP TYPE STRING,
ILBER TYPE STRING,
ILPLA TYPE STRING,
MSGLI TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_ACTA_M_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_ACTA_M_STR-MANDT sy-vline 
WA_/SCWM/S_ACTA_M_STR-LGNUM sy-vline 
WA_/SCWM/S_ACTA_M_STR-AAREA sy-vline 
WA_/SCWM/S_ACTA_M_STR-RANK sy-vline 
WA_/SCWM/S_ACTA_M_STR-LGTYP sy-vline 
WA_/SCWM/S_ACTA_M_STR-AISLE_SRT sy-vline 
WA_/SCWM/S_ACTA_M_STR-AISLE_END sy-vline 
WA_/SCWM/S_ACTA_M_STR-STACK_SRT sy-vline 
WA_/SCWM/S_ACTA_M_STR-STACK_END sy-vline 
WA_/SCWM/S_ACTA_M_STR-LEVEL_SRT sy-vline 
WA_/SCWM/S_ACTA_M_STR-LEVEL_END sy-vline 
WA_/SCWM/S_ACTA_M_STR-BINSC_SRT sy-vline 
WA_/SCWM/S_ACTA_M_STR-BINSC_END sy-vline 
WA_/SCWM/S_ACTA_M_STR-DEPTH_SRT sy-vline 
WA_/SCWM/S_ACTA_M_STR-DEPTH_END sy-vline 
WA_/SCWM/S_ACTA_M_STR-DSTGRP sy-vline 
WA_/SCWM/S_ACTA_M_STR-ILTYP sy-vline 
WA_/SCWM/S_ACTA_M_STR-ILBER sy-vline 
WA_/SCWM/S_ACTA_M_STR-ILPLA sy-vline 
WA_/SCWM/S_ACTA_M_STR-MSGLI sy-vline 
WA_/SCWM/S_ACTA_M_STR-MSGTY sy-vline 
WA_/SCWM/S_ACTA_M_STR-MSGNO sy-vline 
WA_/SCWM/S_ACTA_M_STR-MSGV1 sy-vline 
WA_/SCWM/S_ACTA_M_STR-MSGV2 sy-vline 
WA_/SCWM/S_ACTA_M_STR-MSGV3 sy-vline 
WA_/SCWM/S_ACTA_M_STR-MSGV4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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