ABAP Select data from SAP table /AIF/TRFC_SIDX_DATA_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /AIF/TRFC_SIDX_DATA_ST
*  INTO TABLE @DATA(IT_/AIF/TRFC_SIDX_DATA_ST2).
*--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_/AIF/TRFC_SIDX_DATA_ST INDEX 1 INTO DATA(WA_/AIF/TRFC_SIDX_DATA_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</AIF/TRFC_SIDX_DATA_ST>-ARFCIPID = 1.
</AIF/TRFC_SIDX_DATA_ST>-ARFCPID = 1.
</AIF/TRFC_SIDX_DATA_ST>-ARFCTIME = 1.
</AIF/TRFC_SIDX_DATA_ST>-ARFCTIDCNT = 1.
</AIF/TRFC_SIDX_DATA_ST>-ARFCDEST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/AIF/TRFC_SIDX_DATA_ST-ARFCLUWCNT, sy-vline,
  WA_/AIF/TRFC_SIDX_DATA_ST-ARFCSTATE, sy-vline,
  WA_/AIF/TRFC_SIDX_DATA_ST-ARFCFNAM, sy-vline,
  WA_/AIF/TRFC_SIDX_DATA_ST-ARFCRETURN, sy-vline,
  WA_/AIF/TRFC_SIDX_DATA_ST-ARFCUZEIT, sy-vline,
  WA_/AIF/TRFC_SIDX_DATA_ST-ARFCDATUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/AIF/TRFC_SIDX_DATA_ST 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_/AIF/TRFC_SIDX_DATA_ST 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_/AIF/TRFC_SIDX_DATA_ST INTO WA_/AIF/TRFC_SIDX_DATA_ST.


*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 ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/AIF/TRFC_SIDX_DATA_ST-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIF/TRFC_SIDX_DATA_ST-LOGSYS.
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_/AIF/TRFC_SIDX_DATA_ST_STR, 
ARFCIPID TYPE STRING,
ARFCPID TYPE STRING,
ARFCTIME TYPE STRING,
ARFCTIDCNT TYPE STRING,
ARFCDEST TYPE STRING,
ARFCLUWCNT TYPE STRING,
ARFCSTATE TYPE STRING,
ARFCFNAM TYPE STRING,
ARFCRETURN TYPE STRING,
ARFCUZEIT TYPE STRING,
ARFCDATUM TYPE STRING,
ARFCUSER TYPE STRING,
ARFCRETRYS TYPE STRING,
ARFCTCODE TYPE STRING,
ARFCRHOST TYPE STRING,
ARFCMSG TYPE STRING,
ARFCRESERV TYPE STRING,
HASH TYPE STRING,
LOGSYS TYPE STRING,
AIF_PERSIST_TYPE TYPE STRING,
ORG_FUNCNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/AIF/TRFC_SIDX_DATA_ST_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_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCIPID sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCPID sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCTIME sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCTIDCNT sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCDEST sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCLUWCNT sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCSTATE sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCFNAM sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCRETURN sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCUZEIT sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCDATUM sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCUSER sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCRETRYS sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCTCODE sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCRHOST sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCMSG sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ARFCRESERV sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-HASH sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-LOGSYS sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-AIF_PERSIST_TYPE sy-vline 
WA_/AIF/TRFC_SIDX_DATA_ST_STR-ORG_FUNCNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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