ABAP Select data from SAP table SLIM_USER_TYPES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SLIM_USER_TYPES
*  INTO TABLE @DATA(IT_SLIM_USER_TYPES2).
*--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_SLIM_USER_TYPES INDEX 1 INTO DATA(WA_SLIM_USER_TYPES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SLIM_USER_TYPES>-MANDT = 1.
<SLIM_USER_TYPES>-BNAME = 1.
<SLIM_USER_TYPES>-ERDAT = 1.
<SLIM_USER_TYPES>-TRDAT = 1.
<SLIM_USER_TYPES>-LIC_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SLIM_USER_TYPES-SURCHARGE, sy-vline,
  WA_SLIM_USER_TYPES-SPRAS, sy-vline,
  WA_SLIM_USER_TYPES-GLTGV, sy-vline,
  WA_SLIM_USER_TYPES-GLTGB, sy-vline,
  WA_SLIM_USER_TYPES-CLASS, sy-vline,
  WA_SLIM_USER_TYPES-ANAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SLIM_USER_TYPES 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_SLIM_USER_TYPES 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_SLIM_USER_TYPES INTO WA_SLIM_USER_TYPES.


*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 USTYP, internal->external for field USTYP
CALL FUNCTION 'CONVERSION_EXIT_USTYP_OUTPUT'
  EXPORTING
    input =                      WA_SLIM_USER_TYPES-USTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SLIM_USER_TYPES-USTYP.
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_SLIM_USER_TYPES_STR, 
MANDT TYPE STRING,
BNAME TYPE STRING,
ERDAT TYPE STRING,
TRDAT TYPE STRING,
LIC_TYPE TYPE STRING,
SURCHARGE TYPE STRING,
SPRAS TYPE STRING,
GLTGV TYPE STRING,
GLTGB TYPE STRING,
CLASS TYPE STRING,
ANAME TYPE STRING,
MANDT2 TYPE STRING,
SYSID TYPE STRING,
VONDAT TYPE STRING,
BISDAT TYPE STRING,
USTYP TYPE STRING,
ACCNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SLIM_USER_TYPES_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_SLIM_USER_TYPES_STR-MANDT sy-vline 
WA_SLIM_USER_TYPES_STR-BNAME sy-vline 
WA_SLIM_USER_TYPES_STR-ERDAT sy-vline 
WA_SLIM_USER_TYPES_STR-TRDAT sy-vline 
WA_SLIM_USER_TYPES_STR-LIC_TYPE sy-vline 
WA_SLIM_USER_TYPES_STR-SURCHARGE sy-vline 
WA_SLIM_USER_TYPES_STR-SPRAS sy-vline 
WA_SLIM_USER_TYPES_STR-GLTGV sy-vline 
WA_SLIM_USER_TYPES_STR-GLTGB sy-vline 
WA_SLIM_USER_TYPES_STR-CLASS sy-vline 
WA_SLIM_USER_TYPES_STR-ANAME sy-vline 
WA_SLIM_USER_TYPES_STR-MANDT2 sy-vline 
WA_SLIM_USER_TYPES_STR-SYSID sy-vline 
WA_SLIM_USER_TYPES_STR-VONDAT sy-vline 
WA_SLIM_USER_TYPES_STR-BISDAT sy-vline 
WA_SLIM_USER_TYPES_STR-USTYP sy-vline 
WA_SLIM_USER_TYPES_STR-ACCNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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