ABAP Select data from SAP table U_25709 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_25709 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_25709. 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_25709 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_25709 TYPE STANDARD TABLE OF U_25709,
      WA_U_25709 TYPE U_25709,
      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_25709> TYPE U_25709.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_25709.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_25709
  INTO TABLE IT_U_25709.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_25709
*  INTO TABLE @DATA(IT_U_257092).
*--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_25709 INDEX 1 INTO DATA(WA_U_257092).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_25709 ASSIGNING <U_25709>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_25709>-MANDT = 1.
<U_25709>-BDZEI = 1.
<U_25709>-PDATU = 1.
<U_25709>-WDATU = 1.
<U_25709>-AENAM = 1.

ENDLOOP.

LOOP AT IT_U_25709 INTO WA_U_25709.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_25709-LAEDA, sy-vline,
  WA_U_25709-MEINS, sy-vline,
  WA_U_25709-PLNMG, sy-vline,
  WA_U_25709-ENTMG, sy-vline,
  WA_U_25709-UPLMG, sy-vline,
  WA_U_25709-ENTLI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_25709 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_25709 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_25709 INTO WA_U_25709.


*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 CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_25709-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_25709-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_25709-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_25709-ERFME.
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_25709_STR, 
MANDT TYPE STRING,
BDZEI TYPE STRING,
PDATU TYPE STRING,
WDATU TYPE STRING,
AENAM TYPE STRING,
LAEDA TYPE STRING,
MEINS TYPE STRING,
PLNMG TYPE STRING,
ENTMG TYPE STRING,
UPLMG TYPE STRING,
ENTLI TYPE STRING,
ENTLU TYPE STRING,
PERXX TYPE STRING,
SERNR TYPE STRING,
VERID TYPE STRING,
ERFME TYPE STRING,
ERFMG TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
FIXMG TYPE STRING,
TXTET TYPE STRING,
LOEVR TYPE STRING,
CUOBJ TYPE STRING,
STPKT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_25709_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_25709_STR-MANDT sy-vline 
WA_U_25709_STR-BDZEI sy-vline 
WA_U_25709_STR-PDATU sy-vline 
WA_U_25709_STR-WDATU sy-vline 
WA_U_25709_STR-AENAM sy-vline 
WA_U_25709_STR-LAEDA sy-vline 
WA_U_25709_STR-MEINS sy-vline 
WA_U_25709_STR-PLNMG sy-vline 
WA_U_25709_STR-ENTMG sy-vline 
WA_U_25709_STR-UPLMG sy-vline 
WA_U_25709_STR-ENTLI sy-vline 
WA_U_25709_STR-ENTLU sy-vline 
WA_U_25709_STR-PERXX sy-vline 
WA_U_25709_STR-SERNR sy-vline 
WA_U_25709_STR-VERID sy-vline 
WA_U_25709_STR-ERFME sy-vline 
WA_U_25709_STR-ERFMG sy-vline 
WA_U_25709_STR-UMREZ sy-vline 
WA_U_25709_STR-UMREN sy-vline 
WA_U_25709_STR-FIXMG sy-vline 
WA_U_25709_STR-TXTET sy-vline 
WA_U_25709_STR-LOEVR sy-vline 
WA_U_25709_STR-CUOBJ sy-vline 
WA_U_25709_STR-STPKT sy-vline      INTO ld_text SEPARATED BY SPACE.

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