ABAP Select data from SAP table U_26274 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_26274 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 U_26274. 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 U_26274 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_U_26274 TYPE STANDARD TABLE OF U_26274,
      WA_U_26274 TYPE U_26274,
      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: <U_26274> TYPE U_26274.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_26274.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_26274
  INTO TABLE IT_U_26274.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_26274
*  INTO TABLE @DATA(IT_U_262742).
*--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_U_26274 INDEX 1 INTO DATA(WA_U_262742).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_26274 ASSIGNING <U_26274>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_26274>-MANDT = 1.
<U_26274>-WBELN = 1.
<U_26274>-LFART = 1.
<U_26274>-LFTYP = 1.
<U_26274>-KALSM = 1.

ENDLOOP.

LOOP AT IT_U_26274 INTO WA_U_26274.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_26274-WFDAT, sy-vline,
  WA_U_26274-RFBSK, sy-vline,
  WA_U_26274-LIFRE, sy-vline,
  WA_U_26274-LNRZB, sy-vline,
  WA_U_26274-EKORG, sy-vline,
  WA_U_26274-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_26274 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_U_26274 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_U_26274 INTO WA_U_26274.


*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 WBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-WBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-WBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-LIFRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-LIFRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRZB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-LNRZB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-LNRZB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field WKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-WKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-WKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field STCUR
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-STCUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-STCUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STAFO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-STAFO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-STAFO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LFAKS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_26274-LFAKS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26274-LFAKS.
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_U_26274_STR, 
MANDT TYPE STRING,
WBELN TYPE STRING,
LFART TYPE STRING,
LFTYP TYPE STRING,
KALSM TYPE STRING,
WFDAT TYPE STRING,
RFBSK TYPE STRING,
LIFRE TYPE STRING,
LNRZB TYPE STRING,
EKORG TYPE STRING,
BUKRS TYPE STRING,
ERZET TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
BLDAT TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
WSTWAE TYPE STRING,
WKURS TYPE STRING,
STCUR TYPE STRING,
KUFIX TYPE STRING,
WKURS_DAT TYPE STRING,
BRTWR TYPE STRING,
ZTERM TYPE STRING,
ZBD1T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2T TYPE STRING,
ZBD2P TYPE STRING,
ZBD3T TYPE STRING,
ZLSCH TYPE STRING,
NETWR TYPE STRING,
FKSTO TYPE STRING,
KAPPL TYPE STRING,
KNUMV TYPE STRING,
STAFO TYPE STRING,
EKGRP TYPE STRING,
VALTG TYPE STRING,
VALDT TYPE STRING,
MWSBK TYPE STRING,
NAVNK TYPE STRING,
LOGSYS TYPE STRING,
DIEKZ TYPE STRING,
LANDL TYPE STRING,
LZBKZ TYPE STRING,
KKBER TYPE STRING,
LFGRU TYPE STRING,
VALTGD TYPE STRING,
VALDTD TYPE STRING,
LFAKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_26274_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_U_26274_STR-MANDT sy-vline 
WA_U_26274_STR-WBELN sy-vline 
WA_U_26274_STR-LFART sy-vline 
WA_U_26274_STR-LFTYP sy-vline 
WA_U_26274_STR-KALSM sy-vline 
WA_U_26274_STR-WFDAT sy-vline 
WA_U_26274_STR-RFBSK sy-vline 
WA_U_26274_STR-LIFRE sy-vline 
WA_U_26274_STR-LNRZB sy-vline 
WA_U_26274_STR-EKORG sy-vline 
WA_U_26274_STR-BUKRS sy-vline 
WA_U_26274_STR-ERZET sy-vline 
WA_U_26274_STR-ERDAT sy-vline 
WA_U_26274_STR-ERNAM sy-vline 
WA_U_26274_STR-AEDAT sy-vline 
WA_U_26274_STR-BLDAT sy-vline 
WA_U_26274_STR-XBLNR sy-vline 
WA_U_26274_STR-ZUONR sy-vline 
WA_U_26274_STR-WSTWAE sy-vline 
WA_U_26274_STR-WKURS sy-vline 
WA_U_26274_STR-STCUR sy-vline 
WA_U_26274_STR-KUFIX sy-vline 
WA_U_26274_STR-WKURS_DAT sy-vline 
WA_U_26274_STR-BRTWR sy-vline 
WA_U_26274_STR-ZTERM sy-vline 
WA_U_26274_STR-ZBD1T sy-vline 
WA_U_26274_STR-ZBD1P sy-vline 
WA_U_26274_STR-ZBD2T sy-vline 
WA_U_26274_STR-ZBD2P sy-vline 
WA_U_26274_STR-ZBD3T sy-vline 
WA_U_26274_STR-ZLSCH sy-vline 
WA_U_26274_STR-NETWR sy-vline 
WA_U_26274_STR-FKSTO sy-vline 
WA_U_26274_STR-KAPPL sy-vline 
WA_U_26274_STR-KNUMV sy-vline 
WA_U_26274_STR-STAFO sy-vline 
WA_U_26274_STR-EKGRP sy-vline 
WA_U_26274_STR-VALTG sy-vline 
WA_U_26274_STR-VALDT sy-vline 
WA_U_26274_STR-MWSBK sy-vline 
WA_U_26274_STR-NAVNK sy-vline 
WA_U_26274_STR-LOGSYS sy-vline 
WA_U_26274_STR-DIEKZ sy-vline 
WA_U_26274_STR-LANDL sy-vline 
WA_U_26274_STR-LZBKZ sy-vline 
WA_U_26274_STR-KKBER sy-vline 
WA_U_26274_STR-LFGRU sy-vline 
WA_U_26274_STR-VALTGD sy-vline 
WA_U_26274_STR-VALDTD sy-vline 
WA_U_26274_STR-LFAKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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