ABAP Select data from SAP table U_16828 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_16828 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_16828. 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_16828 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_16828 TYPE STANDARD TABLE OF U_16828,
      WA_U_16828 TYPE U_16828,
      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_16828> TYPE U_16828.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_16828.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_16828
  INTO TABLE IT_U_16828.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_16828
*  INTO TABLE @DATA(IT_U_168282).
*--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_16828 INDEX 1 INTO DATA(WA_U_168282).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_16828 ASSIGNING <U_16828>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_16828>-MANDT = 1.
<U_16828>-MATNR = 1.
<U_16828>-SPRAS = 1.
<U_16828>-MTART = 1.
<U_16828>-MBRSH = 1.

ENDLOOP.

LOOP AT IT_U_16828 INTO WA_U_16828.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_16828-MATKL, sy-vline,
  WA_U_16828-MEINS, sy-vline,
  WA_U_16828-LVORM, sy-vline,
  WA_U_16828-LAEDA, sy-vline,
  WA_U_16828-AENAM, sy-vline,
  WA_U_16828-ERSDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_16828 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_16828 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_16828 INTO WA_U_16828.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEABM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-MEABM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-MEABM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WVRKM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-WVRKM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-WVRKM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WAUSM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-WAUSM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-WAUSM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WEXPM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_16828-WEXPM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16828-WEXPM.
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_16828_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
SPRAS TYPE STRING,
MTART TYPE STRING,
MBRSH TYPE STRING,
MATKL TYPE STRING,
MEINS TYPE STRING,
LVORM TYPE STRING,
LAEDA TYPE STRING,
AENAM TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
VPSTA TYPE STRING,
PSTAT TYPE STRING,
MAKTX TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
LAENG TYPE STRING,
MEABM TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
NTGEW TYPE STRING,
BISMT TYPE STRING,
GROES TYPE STRING,
LABOR TYPE STRING,
SPART TYPE STRING,
EAN11 TYPE STRING,
NUMTP TYPE STRING,
PRDHA TYPE STRING,
BEGRU TYPE STRING,
EXTWG TYPE STRING,
MSTAE TYPE STRING,
MSTDE TYPE STRING,
KOSCH TYPE STRING,
MAKTG TYPE STRING,
BBTYP TYPE STRING,
SERVV TYPE STRING,
WMAAB TYPE STRING,
WEKGR TYPE STRING,
WVRKM TYPE STRING,
WAUSM TYPE STRING,
WHERL TYPE STRING,
WHERR TYPE STRING,
WLADG TYPE STRING,
SSTUF TYPE STRING,
PFLKS TYPE STRING,
LSTFL TYPE STRING,
LSTVZ TYPE STRING,
LSTAK TYPE STRING,
LDVFL TYPE STRING,
LDBFL TYPE STRING,
LDVZL TYPE STRING,
LDBZL TYPE STRING,
VDVFL TYPE STRING,
VDBFL TYPE STRING,
VDVZL TYPE STRING,
VDBZL TYPE STRING,
WBKLA TYPE STRING,
WSTAW TYPE STRING,
WPSTA TYPE STRING,
WBWSP TYPE STRING,
WEXPM TYPE STRING,
KWDHT TYPE STRING,
PRERF TYPE STRING,
RBZUL TYPE STRING,
SCAGR TYPE STRING,
BWVOR TYPE STRING,
BWSCL TYPE STRING,
PLGTP TYPE STRING,
SPROF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_16828_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_16828_STR-MANDT sy-vline 
WA_U_16828_STR-MATNR sy-vline 
WA_U_16828_STR-SPRAS sy-vline 
WA_U_16828_STR-MTART sy-vline 
WA_U_16828_STR-MBRSH sy-vline 
WA_U_16828_STR-MATKL sy-vline 
WA_U_16828_STR-MEINS sy-vline 
WA_U_16828_STR-LVORM sy-vline 
WA_U_16828_STR-LAEDA sy-vline 
WA_U_16828_STR-AENAM sy-vline 
WA_U_16828_STR-ERSDA sy-vline 
WA_U_16828_STR-ERNAM sy-vline 
WA_U_16828_STR-VPSTA sy-vline 
WA_U_16828_STR-PSTAT sy-vline 
WA_U_16828_STR-MAKTX sy-vline 
WA_U_16828_STR-BREIT sy-vline 
WA_U_16828_STR-HOEHE sy-vline 
WA_U_16828_STR-LAENG sy-vline 
WA_U_16828_STR-MEABM sy-vline 
WA_U_16828_STR-BRGEW sy-vline 
WA_U_16828_STR-GEWEI sy-vline 
WA_U_16828_STR-VOLUM sy-vline 
WA_U_16828_STR-VOLEH sy-vline 
WA_U_16828_STR-NTGEW sy-vline 
WA_U_16828_STR-BISMT sy-vline 
WA_U_16828_STR-GROES sy-vline 
WA_U_16828_STR-LABOR sy-vline 
WA_U_16828_STR-SPART sy-vline 
WA_U_16828_STR-EAN11 sy-vline 
WA_U_16828_STR-NUMTP sy-vline 
WA_U_16828_STR-PRDHA sy-vline 
WA_U_16828_STR-BEGRU sy-vline 
WA_U_16828_STR-EXTWG sy-vline 
WA_U_16828_STR-MSTAE sy-vline 
WA_U_16828_STR-MSTDE sy-vline 
WA_U_16828_STR-KOSCH sy-vline 
WA_U_16828_STR-MAKTG sy-vline 
WA_U_16828_STR-BBTYP sy-vline 
WA_U_16828_STR-SERVV sy-vline 
WA_U_16828_STR-WMAAB sy-vline 
WA_U_16828_STR-WEKGR sy-vline 
WA_U_16828_STR-WVRKM sy-vline 
WA_U_16828_STR-WAUSM sy-vline 
WA_U_16828_STR-WHERL sy-vline 
WA_U_16828_STR-WHERR sy-vline 
WA_U_16828_STR-WLADG sy-vline 
WA_U_16828_STR-SSTUF sy-vline 
WA_U_16828_STR-PFLKS sy-vline 
WA_U_16828_STR-LSTFL sy-vline 
WA_U_16828_STR-LSTVZ sy-vline 
WA_U_16828_STR-LSTAK sy-vline 
WA_U_16828_STR-LDVFL sy-vline 
WA_U_16828_STR-LDBFL sy-vline 
WA_U_16828_STR-LDVZL sy-vline 
WA_U_16828_STR-LDBZL sy-vline 
WA_U_16828_STR-VDVFL sy-vline 
WA_U_16828_STR-VDBFL sy-vline 
WA_U_16828_STR-VDVZL sy-vline 
WA_U_16828_STR-VDBZL sy-vline 
WA_U_16828_STR-WBKLA sy-vline 
WA_U_16828_STR-WSTAW sy-vline 
WA_U_16828_STR-WPSTA sy-vline 
WA_U_16828_STR-WBWSP sy-vline 
WA_U_16828_STR-WEXPM sy-vline 
WA_U_16828_STR-KWDHT sy-vline 
WA_U_16828_STR-PRERF sy-vline 
WA_U_16828_STR-RBZUL sy-vline 
WA_U_16828_STR-SCAGR sy-vline 
WA_U_16828_STR-BWVOR sy-vline 
WA_U_16828_STR-BWSCL sy-vline 
WA_U_16828_STR-PLGTP sy-vline 
WA_U_16828_STR-SPROF sy-vline      INTO ld_text SEPARATED BY SPACE.

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