ABAP Select data from SAP table U_26243 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_26243 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_26243. 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_26243 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_26243 TYPE STANDARD TABLE OF U_26243,
      WA_U_26243 TYPE U_26243,
      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_26243> TYPE U_26243.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_26243.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_26243
  INTO TABLE IT_U_26243.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_26243
*  INTO TABLE @DATA(IT_U_262432).
*--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_26243 INDEX 1 INTO DATA(WA_U_262432).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_26243 ASSIGNING <U_26243>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_26243>-MANDT = 1.
<U_26243>-SAMMG = 1.
<U_26243>-SMART = 1.
<U_26243>-ERNAM = 1.
<U_26243>-ERDAT = 1.

ENDLOOP.

LOOP AT IT_U_26243 INTO WA_U_26243.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_26243-UZEIT, sy-vline,
  WA_U_26243-VBNUM, sy-vline,
  WA_U_26243-ERNUM, sy-vline,
  WA_U_26243-BRGEW, sy-vline,
  WA_U_26243-GEWEI, sy-vline,
  WA_U_26243-VOLUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_26243 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_26243 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_26243 INTO WA_U_26243.


*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 SAMMG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_26243-SAMMG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26243-SAMMG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_26243-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26243-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_26243-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_26243-VOLEH.
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_26243_STR, 
MANDT TYPE STRING,
SAMMG TYPE STRING,
SMART TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
UZEIT TYPE STRING,
VBNUM TYPE STRING,
ERNUM TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
VSTEL TYPE STRING,
VTEXT TYPE STRING,
MAXZT TYPE STRING,
PROGRAMM TYPE STRING,
SELSET TYPE STRING,
BATCH TYPE STRING,
ANZLP TYPE STRING,
ANZGP TYPE STRING,
ANZGI TYPE STRING,
KWPRO TYPE STRING,
KAPTP TYPE STRING,
LGNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_26243_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_26243_STR-MANDT sy-vline 
WA_U_26243_STR-SAMMG sy-vline 
WA_U_26243_STR-SMART sy-vline 
WA_U_26243_STR-ERNAM sy-vline 
WA_U_26243_STR-ERDAT sy-vline 
WA_U_26243_STR-UZEIT sy-vline 
WA_U_26243_STR-VBNUM sy-vline 
WA_U_26243_STR-ERNUM sy-vline 
WA_U_26243_STR-BRGEW sy-vline 
WA_U_26243_STR-GEWEI sy-vline 
WA_U_26243_STR-VOLUM sy-vline 
WA_U_26243_STR-VOLEH sy-vline 
WA_U_26243_STR-VSTEL sy-vline 
WA_U_26243_STR-VTEXT sy-vline 
WA_U_26243_STR-MAXZT sy-vline 
WA_U_26243_STR-PROGRAMM sy-vline 
WA_U_26243_STR-SELSET sy-vline 
WA_U_26243_STR-BATCH sy-vline 
WA_U_26243_STR-ANZLP sy-vline 
WA_U_26243_STR-ANZGP sy-vline 
WA_U_26243_STR-ANZGI sy-vline 
WA_U_26243_STR-KWPRO sy-vline 
WA_U_26243_STR-KAPTP sy-vline 
WA_U_26243_STR-LGNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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