ABAP Select data from SAP table SCTMS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SCTMS 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 SCTMS. 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 SCTMS 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_SCTMS TYPE STANDARD TABLE OF SCTMS,
      WA_SCTMS TYPE SCTMS,
      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: <SCTMS> TYPE SCTMS.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SCTMS
  INTO TABLE IT_SCTMS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCTMS
*  INTO TABLE @DATA(IT_SCTMS2).
*--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_SCTMS INDEX 1 INTO DATA(WA_SCTMS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SCTMS ASSIGNING <SCTMS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCTMS>-KZDAR = 1.
<SCTMS>-KZUMF = 1.
<SCTMS>-MEMUS = 1.
<SCTMS>-MEOPT = 1.
<SCTMS>-MEMIT = 1.

ENDLOOP.

LOOP AT IT_SCTMS INTO WA_SCTMS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCTMS-MEOHN, sy-vline,
  WA_SCTMS-MEMMV, sy-vline,
  WA_SCTMS-DOBJD, sy-vline,
  WA_SCTMS-DMRKM, sy-vline,
  WA_SCTMS-DMWRT, sy-vline,
  WA_SCTMS-DPAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCTMS 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_SCTMS 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_SCTMS INTO WA_SCTMS.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SCTMS-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SCTMS-LANGU.
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_SCTMS_STR, 
KZDAR TYPE STRING,
KZUMF TYPE STRING,
MEMUS TYPE STRING,
MEOPT TYPE STRING,
MEMIT TYPE STRING,
MEOHN TYPE STRING,
MEMMV TYPE STRING,
DOBJD TYPE STRING,
DMRKM TYPE STRING,
DMWRT TYPE STRING,
DPAGE TYPE STRING,
DMABW TYPE STRING,
DMKEY TYPE STRING,
AINFO TYPE STRING,
KZLAN TYPE STRING,
LANGU TYPE STRING,
NEUTR TYPE STRING,
RESERVE TYPE STRING,
MEZUM TYPE STRING,
MEMAS TYPE STRING,
LCHAR TYPE STRING,
LVALU TYPE STRING,
LCHVA TYPE STRING,
CONFA TYPE STRING,
CONFI TYPE STRING,
CONFS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCTMS_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_SCTMS_STR-KZDAR sy-vline 
WA_SCTMS_STR-KZUMF sy-vline 
WA_SCTMS_STR-MEMUS sy-vline 
WA_SCTMS_STR-MEOPT sy-vline 
WA_SCTMS_STR-MEMIT sy-vline 
WA_SCTMS_STR-MEOHN sy-vline 
WA_SCTMS_STR-MEMMV sy-vline 
WA_SCTMS_STR-DOBJD sy-vline 
WA_SCTMS_STR-DMRKM sy-vline 
WA_SCTMS_STR-DMWRT sy-vline 
WA_SCTMS_STR-DPAGE sy-vline 
WA_SCTMS_STR-DMABW sy-vline 
WA_SCTMS_STR-DMKEY sy-vline 
WA_SCTMS_STR-AINFO sy-vline 
WA_SCTMS_STR-KZLAN sy-vline 
WA_SCTMS_STR-LANGU sy-vline 
WA_SCTMS_STR-NEUTR sy-vline 
WA_SCTMS_STR-RESERVE sy-vline 
WA_SCTMS_STR-MEZUM sy-vline 
WA_SCTMS_STR-MEMAS sy-vline 
WA_SCTMS_STR-LCHAR sy-vline 
WA_SCTMS_STR-LVALU sy-vline 
WA_SCTMS_STR-LCHVA sy-vline 
WA_SCTMS_STR-CONFA sy-vline 
WA_SCTMS_STR-CONFI sy-vline 
WA_SCTMS_STR-CONFS sy-vline      INTO ld_text SEPARATED BY SPACE.

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