ABAP Select data from SAP table U_15651 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_15651 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_15651. 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_15651 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_15651 TYPE STANDARD TABLE OF U_15651,
      WA_U_15651 TYPE U_15651,
      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_15651> TYPE U_15651.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_15651.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_15651
  INTO TABLE IT_U_15651.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_15651
*  INTO TABLE @DATA(IT_U_156512).
*--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_15651 INDEX 1 INTO DATA(WA_U_156512).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_15651 ASSIGNING <U_15651>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_15651>-MANDT = 1.
<U_15651>-QMNUM = 1.
<U_15651>-QMART = 1.
<U_15651>-QMTXT = 1.
<U_15651>-ERNAM = 1.

ENDLOOP.

LOOP AT IT_U_15651 INTO WA_U_15651.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_15651-ERDAT, sy-vline,
  WA_U_15651-AENAM, sy-vline,
  WA_U_15651-AEDAT, sy-vline,
  WA_U_15651-MZEIT, sy-vline,
  WA_U_15651-QMDAT, sy-vline,
  WA_U_15651-QMNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_15651 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_15651 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_15651 INTO WA_U_15651.


*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_15651-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-QMNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-SERIALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BAUTL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-BAUTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-BAUTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field BTPLN
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-BTPLN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-BTPLN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEQUI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-BEQUI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-BEQUI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WARPL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-WARPL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-WARPL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WAPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-WAPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-WAPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MAUEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_15651-MAUEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15651-MAUEH.
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_15651_STR, 
MANDT TYPE STRING,
QMNUM TYPE STRING,
QMART TYPE STRING,
QMTXT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
MZEIT TYPE STRING,
QMDAT TYPE STRING,
QMNAM TYPE STRING,
FEKNZ TYPE STRING,
MAKNZ TYPE STRING,
OBJNR TYPE STRING,
QMDAB TYPE STRING,
QMZAB TYPE STRING,
RBNR TYPE STRING,
RBNRI TYPE STRING,
INDTX TYPE STRING,
KZMLA TYPE STRING,
HERKZ TYPE STRING,
BEZDT TYPE STRING,
BEZUR TYPE STRING,
BUNAME TYPE STRING,
AEZEIT TYPE STRING,
ERZEIT TYPE STRING,
SERIALNR TYPE STRING,
KZLOESCH TYPE STRING,
IWERK TYPE STRING,
ILOAN TYPE STRING,
ILOAI TYPE STRING,
EQUNR TYPE STRING,
BAUTL TYPE STRING,
EBORT TYPE STRING,
BTPLN TYPE STRING,
BEQUI TYPE STRING,
AUSWK TYPE STRING,
INGRP TYPE STRING,
WARPL TYPE STRING,
ABNUM TYPE STRING,
WAPOS TYPE STRING,
ARTPR TYPE STRING,
PRIOK TYPE STRING,
MSAUS TYPE STRING,
AUSVN TYPE STRING,
AUSBS TYPE STRING,
AUZTV TYPE STRING,
AUZTB TYPE STRING,
AUSZT TYPE STRING,
MAUEH TYPE STRING,
VERFV TYPE STRING,
VERFN TYPE STRING,
VERFM TYPE STRING,
ANLZV TYPE STRING,
ANLZN TYPE STRING,
ANLZE TYPE STRING,
INSPK TYPE STRING,
DATAN TYPE STRING,
STRMN TYPE STRING,
STRUR TYPE STRING,
LTRMN TYPE STRING,
LTRUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_15651_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_15651_STR-MANDT sy-vline 
WA_U_15651_STR-QMNUM sy-vline 
WA_U_15651_STR-QMART sy-vline 
WA_U_15651_STR-QMTXT sy-vline 
WA_U_15651_STR-ERNAM sy-vline 
WA_U_15651_STR-ERDAT sy-vline 
WA_U_15651_STR-AENAM sy-vline 
WA_U_15651_STR-AEDAT sy-vline 
WA_U_15651_STR-MZEIT sy-vline 
WA_U_15651_STR-QMDAT sy-vline 
WA_U_15651_STR-QMNAM sy-vline 
WA_U_15651_STR-FEKNZ sy-vline 
WA_U_15651_STR-MAKNZ sy-vline 
WA_U_15651_STR-OBJNR sy-vline 
WA_U_15651_STR-QMDAB sy-vline 
WA_U_15651_STR-QMZAB sy-vline 
WA_U_15651_STR-RBNR sy-vline 
WA_U_15651_STR-RBNRI sy-vline 
WA_U_15651_STR-INDTX sy-vline 
WA_U_15651_STR-KZMLA sy-vline 
WA_U_15651_STR-HERKZ sy-vline 
WA_U_15651_STR-BEZDT sy-vline 
WA_U_15651_STR-BEZUR sy-vline 
WA_U_15651_STR-BUNAME sy-vline 
WA_U_15651_STR-AEZEIT sy-vline 
WA_U_15651_STR-ERZEIT sy-vline 
WA_U_15651_STR-SERIALNR sy-vline 
WA_U_15651_STR-KZLOESCH sy-vline 
WA_U_15651_STR-IWERK sy-vline 
WA_U_15651_STR-ILOAN sy-vline 
WA_U_15651_STR-ILOAI sy-vline 
WA_U_15651_STR-EQUNR sy-vline 
WA_U_15651_STR-BAUTL sy-vline 
WA_U_15651_STR-EBORT sy-vline 
WA_U_15651_STR-BTPLN sy-vline 
WA_U_15651_STR-BEQUI sy-vline 
WA_U_15651_STR-AUSWK sy-vline 
WA_U_15651_STR-INGRP sy-vline 
WA_U_15651_STR-WARPL sy-vline 
WA_U_15651_STR-ABNUM sy-vline 
WA_U_15651_STR-WAPOS sy-vline 
WA_U_15651_STR-ARTPR sy-vline 
WA_U_15651_STR-PRIOK sy-vline 
WA_U_15651_STR-MSAUS sy-vline 
WA_U_15651_STR-AUSVN sy-vline 
WA_U_15651_STR-AUSBS sy-vline 
WA_U_15651_STR-AUZTV sy-vline 
WA_U_15651_STR-AUZTB sy-vline 
WA_U_15651_STR-AUSZT sy-vline 
WA_U_15651_STR-MAUEH sy-vline 
WA_U_15651_STR-VERFV sy-vline 
WA_U_15651_STR-VERFN sy-vline 
WA_U_15651_STR-VERFM sy-vline 
WA_U_15651_STR-ANLZV sy-vline 
WA_U_15651_STR-ANLZN sy-vline 
WA_U_15651_STR-ANLZE sy-vline 
WA_U_15651_STR-INSPK sy-vline 
WA_U_15651_STR-DATAN sy-vline 
WA_U_15651_STR-STRMN sy-vline 
WA_U_15651_STR-STRUR sy-vline 
WA_U_15651_STR-LTRMN sy-vline 
WA_U_15651_STR-LTRUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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