ABAP Select data from SAP table /GBT/S_IDOC_DATA_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GBT/S_IDOC_DATA_LIST
*  INTO TABLE @DATA(IT_/GBT/S_IDOC_DATA_LIST2).
*--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_/GBT/S_IDOC_DATA_LIST INDEX 1 INTO DATA(WA_/GBT/S_IDOC_DATA_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GBT/S_IDOC_DATA_LIST>-IDOC_CONTROL = 1.
</GBT/S_IDOC_DATA_LIST>-MANDT = 1.
</GBT/S_IDOC_DATA_LIST>-DOCNUM = 1.
</GBT/S_IDOC_DATA_LIST>-DOCREL = 1.
</GBT/S_IDOC_DATA_LIST>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GBT/S_IDOC_DATA_LIST-DOCTYP, sy-vline,
  WA_/GBT/S_IDOC_DATA_LIST-DIRECT, sy-vline,
  WA_/GBT/S_IDOC_DATA_LIST-RCVPOR, sy-vline,
  WA_/GBT/S_IDOC_DATA_LIST-RCVPRT, sy-vline,
  WA_/GBT/S_IDOC_DATA_LIST-RCVPRN, sy-vline,
  WA_/GBT/S_IDOC_DATA_LIST-RCVSAD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GBT/S_IDOC_DATA_LIST 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_/GBT/S_IDOC_DATA_LIST 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_/GBT/S_IDOC_DATA_LIST INTO WA_/GBT/S_IDOC_DATA_LIST.


*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 RCVPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/GBT/S_IDOC_DATA_LIST-RCVPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_IDOC_DATA_LIST-RCVPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNDPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/GBT/S_IDOC_DATA_LIST-SNDPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_IDOC_DATA_LIST-SNDPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field RCVPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_/GBT/S_IDOC_DATA_LIST-RCVPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_IDOC_DATA_LIST-RCVPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field SNDPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_/GBT/S_IDOC_DATA_LIST-SNDPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_IDOC_DATA_LIST-SNDPFC.
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_/GBT/S_IDOC_DATA_LIST_STR, 
IDOC_CONTROL TYPE STRING,
MANDT TYPE STRING,
DOCNUM TYPE STRING,
DOCREL TYPE STRING,
STATUS TYPE STRING,
DOCTYP TYPE STRING,
DIRECT TYPE STRING,
RCVPOR TYPE STRING,
RCVPRT TYPE STRING,
RCVPRN TYPE STRING,
RCVSAD TYPE STRING,
RCVSMN TYPE STRING,
RCVSNA TYPE STRING,
RCVSCA TYPE STRING,
RCVSDF TYPE STRING,
RCVSLF TYPE STRING,
RCVLAD TYPE STRING,
STD TYPE STRING,
STDVRS TYPE STRING,
STDMES TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
OUTMOD TYPE STRING,
TEST TYPE STRING,
SNDPOR TYPE STRING,
SNDPRT TYPE STRING,
SNDPRN TYPE STRING,
SNDSAD TYPE STRING,
SNDSMN TYPE STRING,
SNDSNA TYPE STRING,
SNDSCA TYPE STRING,
SNDSDF TYPE STRING,
SNDSLF TYPE STRING,
SNDLAD TYPE STRING,
REFINT TYPE STRING,
REFGRP TYPE STRING,
REFMES TYPE STRING,
ARCKEY TYPE STRING,
CREDAT TYPE STRING,
CRETIM TYPE STRING,
MESTYP TYPE STRING,
IDOCTP TYPE STRING,
CIMTYP TYPE STRING,
RCVPFC TYPE STRING,
SNDPFC TYPE STRING,
SERIAL TYPE STRING,
EXPRSS TYPE STRING,
UPDDAT TYPE STRING,
UPDTIM TYPE STRING,
MAXSEGNUM TYPE STRING,
IDOC_DATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GBT/S_IDOC_DATA_LIST_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_/GBT/S_IDOC_DATA_LIST_STR-IDOC_CONTROL sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-MANDT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-DOCNUM sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-DOCREL sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-STATUS sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-DOCTYP sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-DIRECT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVPOR sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVPRT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVPRN sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVSAD sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVSMN sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVSNA sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVSCA sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVSDF sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVSLF sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVLAD sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-STD sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-STDVRS sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-STDMES sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-MESCOD sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-MESFCT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-OUTMOD sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-TEST sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDPOR sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDPRT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDPRN sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDSAD sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDSMN sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDSNA sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDSCA sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDSDF sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDSLF sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDLAD sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-REFINT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-REFGRP sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-REFMES sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-ARCKEY sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-CREDAT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-CRETIM sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-MESTYP sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-IDOCTP sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-CIMTYP sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-RCVPFC sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SNDPFC sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-SERIAL sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-EXPRSS sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-UPDDAT sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-UPDTIM sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-MAXSEGNUM sy-vline 
WA_/GBT/S_IDOC_DATA_LIST_STR-IDOC_DATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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