ABAP Select data from SAP table SMODIRS38L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SMODIRS38L 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 SMODIRS38L. 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 SMODIRS38L 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_SMODIRS38L TYPE STANDARD TABLE OF SMODIRS38L,
      WA_SMODIRS38L TYPE SMODIRS38L,
      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: <SMODIRS38L> TYPE SMODIRS38L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SMODIRS38L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SMODIRS38L
  INTO TABLE IT_SMODIRS38L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SMODIRS38L
*  INTO TABLE @DATA(IT_SMODIRS38L2).
*--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_SMODIRS38L INDEX 1 INTO DATA(WA_SMODIRS38L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SMODIRS38L ASSIGNING <SMODIRS38L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SMODIRS38L>-NAME = 1.
<SMODIRS38L>-AREA = 1.
<SMODIRS38L>-GLOBAL = 1.
<SMODIRS38L>-UKIND1 = 1.
<SMODIRS38L>-UKIND3 = 1.

ENDLOOP.

LOOP AT IT_SMODIRS38L INTO WA_SMODIRS38L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SMODIRS38L-UKIND2, sy-vline,
  WA_SMODIRS38L-UKIND4, sy-vline,
  WA_SMODIRS38L-VERBUCHER, sy-vline,
  WA_SMODIRS38L-UTASK, sy-vline,
  WA_SMODIRS38L-REMOTE, sy-vline,
  WA_SMODIRS38L-INCLUDE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SMODIRS38L 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_SMODIRS38L 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_SMODIRS38L INTO WA_SMODIRS38L.


*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_SMODIRS38L_STR, 
NAME TYPE STRING,
AREA TYPE STRING,
GLOBAL TYPE STRING,
UKIND1 TYPE STRING,
UKIND3 TYPE STRING,
UKIND2 TYPE STRING,
UKIND4 TYPE STRING,
VERBUCHER TYPE STRING,
UTASK TYPE STRING,
REMOTE TYPE STRING,
INCLUDE TYPE STRING,
PROGNAME TYPE STRING,
PROGRAMM TYPE STRING,
APPL TYPE STRING,
EXCEPTION_CLASS TYPE STRING,
JAVA_REMOTE TYPE STRING,
ABAP_REMOTE TYPE STRING,
JAVA_FUNC TYPE STRING,
ABAP_FUNC TYPE STRING,
JAVA_FROM_ABAP TYPE STRING,
ABAP_FROM_JAVA TYPE STRING,
BASXML_ENABLED TYPE STRING,
UKIND5 TYPE STRING,
RFCSCOPE TYPE STRING,
RFCVERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SMODIRS38L_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_SMODIRS38L_STR-NAME sy-vline 
WA_SMODIRS38L_STR-AREA sy-vline 
WA_SMODIRS38L_STR-GLOBAL sy-vline 
WA_SMODIRS38L_STR-UKIND1 sy-vline 
WA_SMODIRS38L_STR-UKIND3 sy-vline 
WA_SMODIRS38L_STR-UKIND2 sy-vline 
WA_SMODIRS38L_STR-UKIND4 sy-vline 
WA_SMODIRS38L_STR-VERBUCHER sy-vline 
WA_SMODIRS38L_STR-UTASK sy-vline 
WA_SMODIRS38L_STR-REMOTE sy-vline 
WA_SMODIRS38L_STR-INCLUDE sy-vline 
WA_SMODIRS38L_STR-PROGNAME sy-vline 
WA_SMODIRS38L_STR-PROGRAMM sy-vline 
WA_SMODIRS38L_STR-APPL sy-vline 
WA_SMODIRS38L_STR-EXCEPTION_CLASS sy-vline 
WA_SMODIRS38L_STR-JAVA_REMOTE sy-vline 
WA_SMODIRS38L_STR-ABAP_REMOTE sy-vline 
WA_SMODIRS38L_STR-JAVA_FUNC sy-vline 
WA_SMODIRS38L_STR-ABAP_FUNC sy-vline 
WA_SMODIRS38L_STR-JAVA_FROM_ABAP sy-vline 
WA_SMODIRS38L_STR-ABAP_FROM_JAVA sy-vline 
WA_SMODIRS38L_STR-BASXML_ENABLED sy-vline 
WA_SMODIRS38L_STR-UKIND5 sy-vline 
WA_SMODIRS38L_STR-RFCSCOPE sy-vline 
WA_SMODIRS38L_STR-RFCVERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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