ABAP Select data from SAP table ASSGMTLDPLFRM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ASSGMTLDPLFRM
*  INTO TABLE @DATA(IT_ASSGMTLDPLFRM2).
*--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_ASSGMTLDPLFRM INDEX 1 INTO DATA(WA_ASSGMTLDPLFRM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ASSGMTLDPLFRM>-MANDT = 1.
<ASSGMTLDPLFRM>-DFSASSGMTUUID = 1.
<ASSGMTLDPLFRM>-DFSMAINTPLATFORMLONGNAME = 1.
<ASSGMTLDPLFRM>-DFSMAINTPLATFORMID = 1.
<ASSGMTLDPLFRM>-DFSMAINTPLATFORMUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ASSGMTLDPLFRM-MATERIALNAME, sy-vline,
  WA_ASSGMTLDPLFRM-PRODUCT, sy-vline,
  WA_ASSGMTLDPLFRM-DFSMAINTBUSINESSOBJECTIDFOED, sy-vline,
  WA_ASSGMTLDPLFRM-DFSMAINTBUSINESSOBJECTTYPEFOED, sy-vline,
  WA_ASSGMTLDPLFRM-DFSMAINTPLTFRMISLEADPLTFRMFOED, sy-vline,
  WA_ASSGMTLDPLFRM-DFSISSTRUCAUTHZNENABLED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ASSGMTLDPLFRM 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_ASSGMTLDPLFRM 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_ASSGMTLDPLFRM INTO WA_ASSGMTLDPLFRM.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ASSGMTLDPLFRM-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASSGMTLDPLFRM-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field DFSMAINTBUSINESSOBJECTIDFOED
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ASSGMTLDPLFRM-DFSMAINTBUSINESSOBJECTIDFOED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASSGMTLDPLFRM-DFSMAINTBUSINESSOBJECTIDFOED.
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_ASSGMTLDPLFRM_STR, 
MANDT TYPE STRING,
DFSASSGMTUUID TYPE STRING,
DFSMAINTPLATFORMLONGNAME TYPE STRING,
DFSMAINTPLATFORMID TYPE STRING,
DFSMAINTPLATFORMUUID TYPE STRING,
MATERIALNAME TYPE STRING,
PRODUCT TYPE STRING,
DFSMAINTBUSINESSOBJECTIDFOED TYPE STRING,
DFSMAINTBUSINESSOBJECTTYPEFOED TYPE STRING,
DFSMAINTPLTFRMISLEADPLTFRMFOED TYPE STRING,
DFSISSTRUCAUTHZNENABLED TYPE STRING,
DFSMAINTPLTFRMISLEADPLTFRM TYPE STRING,
DFSASSGMTSOURCETYPE TYPE STRING,
DFSASSGMTTYPE TYPE STRING,
DFSASSGMTSTATUSCODE TYPE STRING,
DFSASSGMTVALDTYSTRTDATE TYPE STRING,
DFSASSGMTVALDTYENDDATE TYPE STRING,
DFSMAINTBUSINESSOBJECTTYPE TYPE STRING,
DFSPLATFORMDETAILSTEXT TYPE STRING,
DFSMAINTPLATFORMEXTENSIONTEXT TYPE STRING,
DFSPLATFORMEXTENSION TYPE STRING,
DFSASSGMTCOMMENT TYPE STRING,
DFSASSGMTSOURCEOBJECTUUID TYPE STRING,
DFSASSGMTCREATIONDATETIME TYPE STRING,
DFSASSGMTCREATEDBYUSER TYPE STRING,
DFSASSGMTCHANGEDATETIME TYPE STRING,
DFSASSGMTLASTCHGDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ASSGMTLDPLFRM_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_ASSGMTLDPLFRM_STR-MANDT sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTUUID sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTPLATFORMLONGNAME sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTPLATFORMID sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTPLATFORMUUID sy-vline 
WA_ASSGMTLDPLFRM_STR-MATERIALNAME sy-vline 
WA_ASSGMTLDPLFRM_STR-PRODUCT sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTBUSINESSOBJECTIDFOED sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTBUSINESSOBJECTTYPEFOED sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTPLTFRMISLEADPLTFRMFOED sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSISSTRUCAUTHZNENABLED sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTPLTFRMISLEADPLTFRM sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTSOURCETYPE sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTTYPE sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTSTATUSCODE sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTVALDTYSTRTDATE sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTVALDTYENDDATE sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTBUSINESSOBJECTTYPE sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSPLATFORMDETAILSTEXT sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSMAINTPLATFORMEXTENSIONTEXT sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSPLATFORMEXTENSION sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTCOMMENT sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTSOURCEOBJECTUUID sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTCREATIONDATETIME sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTCREATEDBYUSER sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTCHANGEDATETIME sy-vline 
WA_ASSGMTLDPLFRM_STR-DFSASSGMTLASTCHGDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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