ABAP Select data from SAP table ISDSLSITMCATDETN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISDSLSITMCATDETN
*  INTO TABLE @DATA(IT_ISDSLSITMCATDETN2).
*--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_ISDSLSITMCATDETN INDEX 1 INTO DATA(WA_ISDSLSITMCATDETN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISDSLSITMCATDETN>-MANDT = 1.
<ISDSLSITMCATDETN>-SALESDOCUMENTTYPE = 1.
<ISDSLSITMCATDETN>-ITEMCATEGORYGROUP = 1.
<ISDSLSITMCATDETN>-SDDOCUMENTITEMUSAGE = 1.
<ISDSLSITMCATDETN>-HIGHERLEVELITEMCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISDSLSITMCATDETN-SALESDOCUMENTITEMCATEGORY, sy-vline,
  WA_ISDSLSITMCATDETN-ADDITIONALSLSDOCITEMCATEGORY1, sy-vline,
  WA_ISDSLSITMCATDETN-ADDITIONALSLSDOCITEMCATEGORY2, sy-vline,
  WA_ISDSLSITMCATDETN-ADDITIONALSLSDOCITEMCATEGORY3, sy-vline,
  WA_ISDSLSITMCATDETN-ADDITIONALSLSDOCITEMCATEGORY4, sy-vline,
  WA_ISDSLSITMCATDETN-ADDITIONALSLSDOCITEMCATEGORY5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISDSLSITMCATDETN 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_ISDSLSITMCATDETN 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_ISDSLSITMCATDETN INTO WA_ISDSLSITMCATDETN.


*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 AUART, internal->external for field SALESDOCUMENTTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ISDSLSITMCATDETN-SALESDOCUMENTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDSLSITMCATDETN-SALESDOCUMENTTYPE.
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_ISDSLSITMCATDETN_STR, 
MANDT TYPE STRING,
SALESDOCUMENTTYPE TYPE STRING,
ITEMCATEGORYGROUP TYPE STRING,
SDDOCUMENTITEMUSAGE TYPE STRING,
HIGHERLEVELITEMCATEGORY TYPE STRING,
SALESDOCUMENTITEMCATEGORY TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY1 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY2 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY3 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY4 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY5 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY6 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY7 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY8 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY9 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY10 TYPE STRING,
ADDITIONALSLSDOCITEMCATEGORY11 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISDSLSITMCATDETN_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_ISDSLSITMCATDETN_STR-MANDT sy-vline 
WA_ISDSLSITMCATDETN_STR-SALESDOCUMENTTYPE sy-vline 
WA_ISDSLSITMCATDETN_STR-ITEMCATEGORYGROUP sy-vline 
WA_ISDSLSITMCATDETN_STR-SDDOCUMENTITEMUSAGE sy-vline 
WA_ISDSLSITMCATDETN_STR-HIGHERLEVELITEMCATEGORY sy-vline 
WA_ISDSLSITMCATDETN_STR-SALESDOCUMENTITEMCATEGORY sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY1 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY2 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY3 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY4 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY5 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY6 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY7 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY8 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY9 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY10 sy-vline 
WA_ISDSLSITMCATDETN_STR-ADDITIONALSLSDOCITEMCATEGORY11 sy-vline      INTO ld_text SEPARATED BY SPACE.

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