ABAP Select data from SAP table /SDF/ALTDEFRC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SDF/ALTDEFRC 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 /SDF/ALTDEFRC. 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 /SDF/ALTDEFRC 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_/SDF/ALTDEFRC TYPE STANDARD TABLE OF /SDF/ALTDEFRC,
      WA_/SDF/ALTDEFRC TYPE /SDF/ALTDEFRC,
      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: </SDF/ALTDEFRC> TYPE /SDF/ALTDEFRC.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SDF/ALTDEFRC
  INTO TABLE IT_/SDF/ALTDEFRC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/ALTDEFRC
*  INTO TABLE @DATA(IT_/SDF/ALTDEFRC2).
*--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_/SDF/ALTDEFRC INDEX 1 INTO DATA(WA_/SDF/ALTDEFRC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SDF/ALTDEFRC ASSIGNING </SDF/ALTDEFRC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/ALTDEFRC>-RC = 1.
</SDF/ALTDEFRC>-MTSYSID = 1.
</SDF/ALTDEFRC>-MTMCNAME = 1.
</SDF/ALTDEFRC>-MTNUMRANGE = 1.
</SDF/ALTDEFRC>-MTUID = 1.

ENDLOOP.

LOOP AT IT_/SDF/ALTDEFRC INTO WA_/SDF/ALTDEFRC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/ALTDEFRC-MTCLASS, sy-vline,
  WA_/SDF/ALTDEFRC-MTINDEX, sy-vline,
  WA_/SDF/ALTDEFRC-EXTINDEX, sy-vline,
  WA_/SDF/ALTDEFRC-CUSTSTATUS, sy-vline,
  WA_/SDF/ALTDEFRC-USECLASS, sy-vline,
  WA_/SDF/ALTDEFRC-SEVERITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/ALTDEFRC 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_/SDF/ALTDEFRC 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_/SDF/ALTDEFRC INTO WA_/SDF/ALTDEFRC.


*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_/SDF/ALTDEFRC_STR, 
RC TYPE STRING,
MTSYSID TYPE STRING,
MTMCNAME TYPE STRING,
MTNUMRANGE TYPE STRING,
MTUID TYPE STRING,
MTCLASS TYPE STRING,
MTINDEX TYPE STRING,
EXTINDEX TYPE STRING,
CUSTSTATUS TYPE STRING,
USECLASS TYPE STRING,
SEVERITY TYPE STRING,
STATISTREC TYPE STRING,
VISUSERLEV TYPE STRING,
KEEPALTYPE TYPE STRING,
KEEPALMAX TYPE STRING,
SECTRGTOOL TYPE STRING,
SECINACTIV TYPE STRING,
WARMUPTIME TYPE STRING,
DTEXTCLASS TYPE STRING,
DTEXTID TYPE STRING,
CUSGRPNAME TYPE STRING,
DELIVERSTA TYPE STRING,
HIGHALVAL TYPE STRING,
HIGHALSEV TYPE STRING,
ALSYSID TYPE STRING,
MSEGNAME TYPE STRING,
ALUNIQNUM TYPE STRING,
ALINDEX TYPE STRING,
ALERTDATE TYPE STRING,
ALERTTIME TYPE STRING,
DUMMYALIGN TYPE STRING,
LASTVALDAT TYPE STRING,
LASTVALTIM TYPE STRING,
LASTVALDUM TYPE STRING,
ACTUALVAL TYPE STRING,
ACTUALSEV TYPE STRING,
VALSYSID TYPE STRING,
VMSEGNAME TYPE STRING,
VALUNIQNUM TYPE STRING,
VALINDEX TYPE STRING,
VALERTDATE TYPE STRING,
VALERTTIME TYPE STRING,
VALERTDUM TYPE STRING,
COUNTOFACT TYPE STRING,
COUNTSUM TYPE STRING,
TDSTATUS TYPE STRING,
TRGTDEFNAM TYPE STRING,
TRGTDEFDSP TYPE STRING,
TRGTDEFSTA TYPE STRING,
TRGTDEFCOS TYPE STRING,
ANATDEFNAM TYPE STRING,
ANATDEFDSP TYPE STRING,
ANATDEFSTA TYPE STRING,
ANATDEFCOS TYPE STRING,
ONATDEFNAM TYPE STRING,
ONATDEFDSP TYPE STRING,
ONATDEFSTA TYPE STRING,
ONATDEFCOS TYPE STRING,
TRGTRUNNAM TYPE STRING,
TRGTRUNSTA TYPE STRING,
TRGTRUNDAT TYPE STRING,
TRGTRUNTIM TYPE STRING,
TRGTRUNDUM TYPE STRING,
TRGTRUNDSP TYPE STRING,
ONATRUNNAM TYPE STRING,
ONATRUNSTA TYPE STRING,
ONATRUNDAT TYPE STRING,
ONATRUNTIM TYPE STRING,
ONATRUNDUM TYPE STRING,
ONATRUNDSP TYPE STRING,
OBJECTNAME TYPE STRING,
MTNAMESHRT TYPE STRING,
MTESUBTYPE TYPE STRING,
CNTALINLST TYPE STRING,
CNTMTCHILD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/ALTDEFRC_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_/SDF/ALTDEFRC_STR-RC sy-vline 
WA_/SDF/ALTDEFRC_STR-MTSYSID sy-vline 
WA_/SDF/ALTDEFRC_STR-MTMCNAME sy-vline 
WA_/SDF/ALTDEFRC_STR-MTNUMRANGE sy-vline 
WA_/SDF/ALTDEFRC_STR-MTUID sy-vline 
WA_/SDF/ALTDEFRC_STR-MTCLASS sy-vline 
WA_/SDF/ALTDEFRC_STR-MTINDEX sy-vline 
WA_/SDF/ALTDEFRC_STR-EXTINDEX sy-vline 
WA_/SDF/ALTDEFRC_STR-CUSTSTATUS sy-vline 
WA_/SDF/ALTDEFRC_STR-USECLASS sy-vline 
WA_/SDF/ALTDEFRC_STR-SEVERITY sy-vline 
WA_/SDF/ALTDEFRC_STR-STATISTREC sy-vline 
WA_/SDF/ALTDEFRC_STR-VISUSERLEV sy-vline 
WA_/SDF/ALTDEFRC_STR-KEEPALTYPE sy-vline 
WA_/SDF/ALTDEFRC_STR-KEEPALMAX sy-vline 
WA_/SDF/ALTDEFRC_STR-SECTRGTOOL sy-vline 
WA_/SDF/ALTDEFRC_STR-SECINACTIV sy-vline 
WA_/SDF/ALTDEFRC_STR-WARMUPTIME sy-vline 
WA_/SDF/ALTDEFRC_STR-DTEXTCLASS sy-vline 
WA_/SDF/ALTDEFRC_STR-DTEXTID sy-vline 
WA_/SDF/ALTDEFRC_STR-CUSGRPNAME sy-vline 
WA_/SDF/ALTDEFRC_STR-DELIVERSTA sy-vline 
WA_/SDF/ALTDEFRC_STR-HIGHALVAL sy-vline 
WA_/SDF/ALTDEFRC_STR-HIGHALSEV sy-vline 
WA_/SDF/ALTDEFRC_STR-ALSYSID sy-vline 
WA_/SDF/ALTDEFRC_STR-MSEGNAME sy-vline 
WA_/SDF/ALTDEFRC_STR-ALUNIQNUM sy-vline 
WA_/SDF/ALTDEFRC_STR-ALINDEX sy-vline 
WA_/SDF/ALTDEFRC_STR-ALERTDATE sy-vline 
WA_/SDF/ALTDEFRC_STR-ALERTTIME sy-vline 
WA_/SDF/ALTDEFRC_STR-DUMMYALIGN sy-vline 
WA_/SDF/ALTDEFRC_STR-LASTVALDAT sy-vline 
WA_/SDF/ALTDEFRC_STR-LASTVALTIM sy-vline 
WA_/SDF/ALTDEFRC_STR-LASTVALDUM sy-vline 
WA_/SDF/ALTDEFRC_STR-ACTUALVAL sy-vline 
WA_/SDF/ALTDEFRC_STR-ACTUALSEV sy-vline 
WA_/SDF/ALTDEFRC_STR-VALSYSID sy-vline 
WA_/SDF/ALTDEFRC_STR-VMSEGNAME sy-vline 
WA_/SDF/ALTDEFRC_STR-VALUNIQNUM sy-vline 
WA_/SDF/ALTDEFRC_STR-VALINDEX sy-vline 
WA_/SDF/ALTDEFRC_STR-VALERTDATE sy-vline 
WA_/SDF/ALTDEFRC_STR-VALERTTIME sy-vline 
WA_/SDF/ALTDEFRC_STR-VALERTDUM sy-vline 
WA_/SDF/ALTDEFRC_STR-COUNTOFACT sy-vline 
WA_/SDF/ALTDEFRC_STR-COUNTSUM sy-vline 
WA_/SDF/ALTDEFRC_STR-TDSTATUS sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTDEFNAM sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTDEFDSP sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTDEFSTA sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTDEFCOS sy-vline 
WA_/SDF/ALTDEFRC_STR-ANATDEFNAM sy-vline 
WA_/SDF/ALTDEFRC_STR-ANATDEFDSP sy-vline 
WA_/SDF/ALTDEFRC_STR-ANATDEFSTA sy-vline 
WA_/SDF/ALTDEFRC_STR-ANATDEFCOS sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATDEFNAM sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATDEFDSP sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATDEFSTA sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATDEFCOS sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTRUNNAM sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTRUNSTA sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTRUNDAT sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTRUNTIM sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTRUNDUM sy-vline 
WA_/SDF/ALTDEFRC_STR-TRGTRUNDSP sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATRUNNAM sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATRUNSTA sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATRUNDAT sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATRUNTIM sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATRUNDUM sy-vline 
WA_/SDF/ALTDEFRC_STR-ONATRUNDSP sy-vline 
WA_/SDF/ALTDEFRC_STR-OBJECTNAME sy-vline 
WA_/SDF/ALTDEFRC_STR-MTNAMESHRT sy-vline 
WA_/SDF/ALTDEFRC_STR-MTESUBTYPE sy-vline 
WA_/SDF/ALTDEFRC_STR-CNTALINLST sy-vline 
WA_/SDF/ALTDEFRC_STR-CNTMTCHILD sy-vline      INTO ld_text SEPARATED BY SPACE.

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