ABAP Select data from SAP table SXMSTSUI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SXMSTSUI
*  INTO TABLE @DATA(IT_SXMSTSUI2).
*--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_SXMSTSUI INDEX 1 INTO DATA(WA_SXMSTSUI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SXMSTSUI>-SEQNBR = 1.
<SXMSTSUI>-ENABLEDICO = 1.
<SXMSTSUI>-OPERATOR = 1.
<SXMSTSUI>-TRIGNAME = 1.
<SXMSTSUI>-TRIGVAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SXMSTSUI-ENABLED, sy-vline,
  WA_SXMSTSUI-ACTIONNAME, sy-vline,
  WA_SXMSTSUI-ACTIONVAL, sy-vline,
  WA_SXMSTSUI-ACTSTRUC, sy-vline,
  WA_SXMSTSUI-CONDID, sy-vline,
  WA_SXMSTSUI-ACTIONID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SXMSTSUI 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_SXMSTSUI 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_SXMSTSUI INTO WA_SXMSTSUI.


*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_SXMSTSUI_STR, 
SEQNBR TYPE STRING,
ENABLEDICO TYPE STRING,
OPERATOR TYPE STRING,
TRIGNAME TYPE STRING,
TRIGVAL TYPE STRING,
ENABLED TYPE STRING,
ACTIONNAME TYPE STRING,
ACTIONVAL TYPE STRING,
ACTSTRUC TYPE STRING,
CONDID TYPE STRING,
ACTIONID TYPE STRING,
ACTIONNAME TYPE STRING,
ACTIONVAL TYPE STRING,
MODUSER TYPE STRING,
MODDATE TYPE STRING,
CONDSTRUC TYPE STRING,
CONDID TYPE STRING,
TRIGNAME TYPE STRING,
TRIGVAL TYPE STRING,
ENABLED TYPE STRING,
MODUSER TYPE STRING,
MODDATE TYPE STRING,
EXPIREDATE TYPE STRING,
ROWCOLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SXMSTSUI_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_SXMSTSUI_STR-SEQNBR sy-vline 
WA_SXMSTSUI_STR-ENABLEDICO sy-vline 
WA_SXMSTSUI_STR-OPERATOR sy-vline 
WA_SXMSTSUI_STR-TRIGNAME sy-vline 
WA_SXMSTSUI_STR-TRIGVAL sy-vline 
WA_SXMSTSUI_STR-ENABLED sy-vline 
WA_SXMSTSUI_STR-ACTIONNAME sy-vline 
WA_SXMSTSUI_STR-ACTIONVAL sy-vline 
WA_SXMSTSUI_STR-ACTSTRUC sy-vline 
WA_SXMSTSUI_STR-CONDID sy-vline 
WA_SXMSTSUI_STR-ACTIONID sy-vline 
WA_SXMSTSUI_STR-ACTIONNAME sy-vline 
WA_SXMSTSUI_STR-ACTIONVAL sy-vline 
WA_SXMSTSUI_STR-MODUSER sy-vline 
WA_SXMSTSUI_STR-MODDATE sy-vline 
WA_SXMSTSUI_STR-CONDSTRUC sy-vline 
WA_SXMSTSUI_STR-CONDID sy-vline 
WA_SXMSTSUI_STR-TRIGNAME sy-vline 
WA_SXMSTSUI_STR-TRIGVAL sy-vline 
WA_SXMSTSUI_STR-ENABLED sy-vline 
WA_SXMSTSUI_STR-MODUSER sy-vline 
WA_SXMSTSUI_STR-MODDATE sy-vline 
WA_SXMSTSUI_STR-EXPIREDATE sy-vline 
WA_SXMSTSUI_STR-ROWCOLOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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