ABAP Select data from SAP table SMCSD 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 SMCSD 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 SMCSD. 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 SMCSD 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_SMCSD TYPE STANDARD TABLE OF SMCSD,
      WA_SMCSD TYPE SMCSD,
      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: <SMCSD> TYPE SMCSD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SMCSD
*  INTO TABLE @DATA(IT_SMCSD2).
*--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_SMCSD INDEX 1 INTO DATA(WA_SMCSD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SMCSD>-MATNR = 1.
<SMCSD>-WERKS = 1.
<SMCSD>-LGORT = 1.
<SMCSD>-CHARG = 1.
<SMCSD>-SOBKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SMCSD-KUNNR, sy-vline,
  WA_SMCSD-RMCSD, sy-vline,
  WA_SMCSD-XDBUP, sy-vline,
  WA_SMCSD-LFGJA, sy-vline,
  WA_SMCSD-LFMON, sy-vline,
  WA_SMCSD-SDLAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SMCSD 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_SMCSD 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_SMCSD INTO WA_SMCSD.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_SMCSD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMCSD-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_SMCSD-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMCSD-LFGJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field SDGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_SMCSD-SDGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMCSD-SDGJA.
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_SMCSD_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
KUNNR TYPE STRING,
RMCSD TYPE STRING,
XDBUP TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
SDLAB TYPE STRING,
SDINS TYPE STRING,
SDSPE TYPE STRING,
SDEIN TYPE STRING,
SDVLA TYPE STRING,
SDVIN TYPE STRING,
SDVSP TYPE STRING,
SDVEI TYPE STRING,
SDLAB_OLD TYPE STRING,
SDINS_OLD TYPE STRING,
SDSPE_OLD TYPE STRING,
SDEIN_OLD TYPE STRING,
SDVLA_OLD TYPE STRING,
SDVIN_OLD TYPE STRING,
SDVSP_OLD TYPE STRING,
SDVEI_OLD TYPE STRING,
RMCSDH TYPE STRING,
SDLFM TYPE STRING,
SDGJA TYPE STRING,
SDRUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SMCSD_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_SMCSD_STR-MATNR sy-vline 
WA_SMCSD_STR-WERKS sy-vline 
WA_SMCSD_STR-LGORT sy-vline 
WA_SMCSD_STR-CHARG sy-vline 
WA_SMCSD_STR-SOBKZ sy-vline 
WA_SMCSD_STR-KUNNR sy-vline 
WA_SMCSD_STR-RMCSD sy-vline 
WA_SMCSD_STR-XDBUP sy-vline 
WA_SMCSD_STR-LFGJA sy-vline 
WA_SMCSD_STR-LFMON sy-vline 
WA_SMCSD_STR-SDLAB sy-vline 
WA_SMCSD_STR-SDINS sy-vline 
WA_SMCSD_STR-SDSPE sy-vline 
WA_SMCSD_STR-SDEIN sy-vline 
WA_SMCSD_STR-SDVLA sy-vline 
WA_SMCSD_STR-SDVIN sy-vline 
WA_SMCSD_STR-SDVSP sy-vline 
WA_SMCSD_STR-SDVEI sy-vline 
WA_SMCSD_STR-SDLAB_OLD sy-vline 
WA_SMCSD_STR-SDINS_OLD sy-vline 
WA_SMCSD_STR-SDSPE_OLD sy-vline 
WA_SMCSD_STR-SDEIN_OLD sy-vline 
WA_SMCSD_STR-SDVLA_OLD sy-vline 
WA_SMCSD_STR-SDVIN_OLD sy-vline 
WA_SMCSD_STR-SDVSP_OLD sy-vline 
WA_SMCSD_STR-SDVEI_OLD sy-vline 
WA_SMCSD_STR-RMCSDH sy-vline 
WA_SMCSD_STR-SDLFM sy-vline 
WA_SMCSD_STR-SDGJA sy-vline 
WA_SMCSD_STR-SDRUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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