ABAP Select data from SAP table U_25658 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_25658 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_25658. 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_25658 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_25658 TYPE STANDARD TABLE OF U_25658,
      WA_U_25658 TYPE U_25658,
      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_25658> TYPE U_25658.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_25658.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_25658
  INTO TABLE IT_U_25658.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_25658
*  INTO TABLE @DATA(IT_U_256582).
*--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_25658 INDEX 1 INTO DATA(WA_U_256582).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_25658 ASSIGNING <U_25658>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_25658>-MANDT = 1.
<U_25658>-AUFPL = 1.
<U_25658>-APLZL = 1.
<U_25658>-LIFNR = 1.
<U_25658>-PREIS = 1.

ENDLOOP.

LOOP AT IT_U_25658 INTO WA_U_25658.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_25658-PEINH, sy-vline,
  WA_U_25658-SAKTO, sy-vline,
  WA_U_25658-WAERS, sy-vline,
  WA_U_25658-INFNR, sy-vline,
  WA_U_25658-ESOKZ, sy-vline,
  WA_U_25658-EKORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_25658 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_25658 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_25658 INTO WA_U_25658.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_25658-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_25658-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_25658-SAKTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_25658-SAKTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_25658-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_25658-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_25658-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_25658-BANFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_25658-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_25658-EBELN.
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_25658_STR, 
MANDT TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
LIFNR TYPE STRING,
PREIS TYPE STRING,
PEINH TYPE STRING,
SAKTO TYPE STRING,
WAERS TYPE STRING,
INFNR TYPE STRING,
ESOKZ TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
KZLGF TYPE STRING,
KZWRTF TYPE STRING,
MATKL TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
FRUNV TYPE STRING,
PLIFZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_25658_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_25658_STR-MANDT sy-vline 
WA_U_25658_STR-AUFPL sy-vline 
WA_U_25658_STR-APLZL sy-vline 
WA_U_25658_STR-LIFNR sy-vline 
WA_U_25658_STR-PREIS sy-vline 
WA_U_25658_STR-PEINH sy-vline 
WA_U_25658_STR-SAKTO sy-vline 
WA_U_25658_STR-WAERS sy-vline 
WA_U_25658_STR-INFNR sy-vline 
WA_U_25658_STR-ESOKZ sy-vline 
WA_U_25658_STR-EKORG sy-vline 
WA_U_25658_STR-EKGRP sy-vline 
WA_U_25658_STR-KZLGF sy-vline 
WA_U_25658_STR-KZWRTF sy-vline 
WA_U_25658_STR-MATKL sy-vline 
WA_U_25658_STR-BANFN sy-vline 
WA_U_25658_STR-BNFPO sy-vline 
WA_U_25658_STR-EBELN sy-vline 
WA_U_25658_STR-EBELP sy-vline 
WA_U_25658_STR-WEMPF sy-vline 
WA_U_25658_STR-ABLAD sy-vline 
WA_U_25658_STR-FRUNV sy-vline 
WA_U_25658_STR-PLIFZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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