ABAP Select data from SAP table U_15708 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_15708 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_15708. 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_15708 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_15708 TYPE STANDARD TABLE OF U_15708,
      WA_U_15708 TYPE U_15708,
      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_15708> TYPE U_15708.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_15708.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_15708
  INTO TABLE IT_U_15708.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_15708
*  INTO TABLE @DATA(IT_U_157082).
*--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_15708 INDEX 1 INTO DATA(WA_U_157082).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_15708 ASSIGNING <U_15708>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_15708>-MANDT = 1.
<U_15708>-QMNUM = 1.
<U_15708>-MANUM = 1.
<U_15708>-FENUM = 1.
<U_15708>-MNKAT = 1.

ENDLOOP.

LOOP AT IT_U_15708 INTO WA_U_15708.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_15708-MNGRP, sy-vline,
  WA_U_15708-MNCOD, sy-vline,
  WA_U_15708-MATXT, sy-vline,
  WA_U_15708-ERNAM, sy-vline,
  WA_U_15708-ERDAT, sy-vline,
  WA_U_15708-AENAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_15708 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_15708 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_15708 INTO WA_U_15708.


*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 QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15708-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15708-QMNUM.
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_15708_STR, 
MANDT TYPE STRING,
QMNUM TYPE STRING,
MANUM TYPE STRING,
FENUM TYPE STRING,
MNKAT TYPE STRING,
MNGRP TYPE STRING,
MNCOD TYPE STRING,
MATXT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
MAKLS TYPE STRING,
KLAKZ TYPE STRING,
PSTER TYPE STRING,
PETER TYPE STRING,
INDTX TYPE STRING,
KZMLA TYPE STRING,
MNGFA TYPE STRING,
PSTUR TYPE STRING,
PETUR TYPE STRING,
ERZEIT TYPE STRING,
AEZEIT TYPE STRING,
KZLOESCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_15708_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_15708_STR-MANDT sy-vline 
WA_U_15708_STR-QMNUM sy-vline 
WA_U_15708_STR-MANUM sy-vline 
WA_U_15708_STR-FENUM sy-vline 
WA_U_15708_STR-MNKAT sy-vline 
WA_U_15708_STR-MNGRP sy-vline 
WA_U_15708_STR-MNCOD sy-vline 
WA_U_15708_STR-MATXT sy-vline 
WA_U_15708_STR-ERNAM sy-vline 
WA_U_15708_STR-ERDAT sy-vline 
WA_U_15708_STR-AENAM sy-vline 
WA_U_15708_STR-AEDAT sy-vline 
WA_U_15708_STR-MAKLS sy-vline 
WA_U_15708_STR-KLAKZ sy-vline 
WA_U_15708_STR-PSTER sy-vline 
WA_U_15708_STR-PETER sy-vline 
WA_U_15708_STR-INDTX sy-vline 
WA_U_15708_STR-KZMLA sy-vline 
WA_U_15708_STR-MNGFA sy-vline 
WA_U_15708_STR-PSTUR sy-vline 
WA_U_15708_STR-PETUR sy-vline 
WA_U_15708_STR-ERZEIT sy-vline 
WA_U_15708_STR-AEZEIT sy-vline 
WA_U_15708_STR-KZLOESCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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