ABAP Select data from SAP table USR10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP USR10 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 USR10. 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 USR10 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_USR10 TYPE STANDARD TABLE OF USR10,
      WA_USR10 TYPE USR10,
      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: <USR10> TYPE USR10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_USR10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM USR10
  INTO TABLE IT_USR10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USR10
*  INTO TABLE @DATA(IT_USR102).
*--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_USR10 INDEX 1 INTO DATA(WA_USR102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_USR10 ASSIGNING <USR10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USR10>-MANDT = 1.
<USR10>-PROFN = 1.
<USR10>-AKTPS = 1.
<USR10>-MODDA = 1.
<USR10>-MODTI = 1.

ENDLOOP.

LOOP AT IT_USR10 INTO WA_USR10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USR10-MODBE, sy-vline,
  WA_USR10-DIVIS, sy-vline,
  WA_USR10-TYP, sy-vline,
  WA_USR10-NRAUT, sy-vline,
  WA_USR10-AUTHS, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_USR10 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_USR10 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_USR10 INTO WA_USR10.


*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 AKTPA, internal->external for field AKTPS
CALL FUNCTION 'CONVERSION_EXIT_AKTPA_OUTPUT'
  EXPORTING
    input =                      WA_USR10-AKTPS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USR10-AKTPS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit XUTYP, internal->external for field TYP
CALL FUNCTION 'CONVERSION_EXIT_XUTYP_OUTPUT'
  EXPORTING
    input =                      WA_USR10-TYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USR10-TYP.
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_USR10_STR, 
MANDT TYPE STRING,
PROFN TYPE STRING,
AKTPS TYPE STRING,
MODDA TYPE STRING,
MODTI TYPE STRING,
MODBE TYPE STRING,
DIVIS TYPE STRING,
TYP TYPE STRING,
NRAUT TYPE STRING,
AUTHS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USR10_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_USR10_STR-MANDT sy-vline 
WA_USR10_STR-PROFN sy-vline 
WA_USR10_STR-AKTPS sy-vline 
WA_USR10_STR-MODDA sy-vline 
WA_USR10_STR-MODTI sy-vline 
WA_USR10_STR-MODBE sy-vline 
WA_USR10_STR-DIVIS sy-vline 
WA_USR10_STR-TYP sy-vline 
WA_USR10_STR-NRAUT sy-vline 
WA_USR10_STR-AUTHS sy-vline      INTO ld_text SEPARATED BY SPACE.

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