ABAP Select data from SAP table SXMS_CUST_HDR_SM30 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SXMS_CUST_HDR_SM30 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 SXMS_CUST_HDR_SM30. 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 SXMS_CUST_HDR_SM30 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_SXMS_CUST_HDR_SM30 TYPE STANDARD TABLE OF SXMS_CUST_HDR_SM30,
      WA_SXMS_CUST_HDR_SM30 TYPE SXMS_CUST_HDR_SM30,
      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: <SXMS_CUST_HDR_SM30> TYPE SXMS_CUST_HDR_SM30.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SXMS_CUST_HDR_SM30.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SXMS_CUST_HDR_SM30
  INTO TABLE IT_SXMS_CUST_HDR_SM30.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SXMS_CUST_HDR_SM30
*  INTO TABLE @DATA(IT_SXMS_CUST_HDR_SM302).
*--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_SXMS_CUST_HDR_SM30 INDEX 1 INTO DATA(WA_SXMS_CUST_HDR_SM302).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SXMS_CUST_HDR_SM30 ASSIGNING <SXMS_CUST_HDR_SM30>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SXMS_CUST_HDR_SM30>-CLIENT = 1.
<SXMS_CUST_HDR_SM30>-GUIDKEY = 1.
<SXMS_CUST_HDR_SM30>-NAME = 1.
<SXMS_CUST_HDR_SM30>-NAMESPACE = 1.
<SXMS_CUST_HDR_SM30>-CREATEDBY = 1.

ENDLOOP.

LOOP AT IT_SXMS_CUST_HDR_SM30 INTO WA_SXMS_CUST_HDR_SM30.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SXMS_CUST_HDR_SM30-CREATEDDATE, sy-vline,
  WA_SXMS_CUST_HDR_SM30-CREATEDTIME, sy-vline,
  WA_SXMS_CUST_HDR_SM30-MODIFIEDBY, sy-vline,
  WA_SXMS_CUST_HDR_SM30-MODIFYDATE, sy-vline,
  WA_SXMS_CUST_HDR_SM30-MODIFYTIME, sy-vline,
  WA_SXMS_CUST_HDR_SM30-VIM_ACTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SXMS_CUST_HDR_SM30 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_SXMS_CUST_HDR_SM30 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_SXMS_CUST_HDR_SM30 INTO WA_SXMS_CUST_HDR_SM30.


*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_SXMS_CUST_HDR_SM30_STR, 
CLIENT TYPE STRING,
GUIDKEY TYPE STRING,
NAME TYPE STRING,
NAMESPACE TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDDATE TYPE STRING,
CREATEDTIME TYPE STRING,
MODIFIEDBY TYPE STRING,
MODIFYDATE TYPE STRING,
MODIFYTIME TYPE STRING,
VIM_ACTION TYPE STRING,
VIM_MARK TYPE STRING,
VIM_TXTACT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SXMS_CUST_HDR_SM30_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_SXMS_CUST_HDR_SM30_STR-CLIENT sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-GUIDKEY sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-NAME sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-NAMESPACE sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-CREATEDBY sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-CREATEDDATE sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-CREATEDTIME sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-MODIFIEDBY sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-MODIFYDATE sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-MODIFYTIME sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-VIM_ACTION sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-VIM_MARK sy-vline 
WA_SXMS_CUST_HDR_SM30_STR-VIM_TXTACT sy-vline      INTO ld_text SEPARATED BY SPACE.

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