ABAP Select data from SAP table DWN04 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DWN04 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 DWN04. 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 DWN04 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_DWN04 TYPE STANDARD TABLE OF DWN04,
      WA_DWN04 TYPE DWN04,
      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: <DWN04> TYPE DWN04.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DWN04.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DWN04
  INTO TABLE IT_DWN04.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DWN04
*  INTO TABLE @DATA(IT_DWN042).
*--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_DWN04 INDEX 1 INTO DATA(WA_DWN042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DWN04 ASSIGNING <DWN04>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DWN04>-RUECK = 1.
<DWN04>-AUFNR = 1.
<DWN04>-APLFL = 1.
<DWN04>-VORNR = 1.
<DWN04>-UVORN = 1.

ENDLOOP.

LOOP AT IT_DWN04 INTO WA_DWN04.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DWN04-SPLIT, sy-vline,
  WA_DWN04-KAPAR, sy-vline,
  WA_DWN04-BDEGR, sy-vline,
  WA_DWN04-MGVRG, sy-vline,
  WA_DWN04-ASVRG, sy-vline,
  WA_DWN04-MEINH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DWN04 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_DWN04 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_DWN04 INTO WA_DWN04.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field APLFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-APLFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-APLFL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UVORN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field USE04
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-USE04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-USE04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UNIT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UNIT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UNIT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UNIT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UNIT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UNIT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UNIT4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UNIT4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UNIT5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UNIT5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UNIT6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UNIT6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ISMNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-ISMNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-ISMNE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ARBEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-ARBEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-ARBEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OFMNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-OFMNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-OFMNE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RSTZE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-RSTZE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-RSTZE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BEAZE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-BEAZE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-BEAZE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ARUZE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-ARUZE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-ARUZE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-MAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-MAUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAPLFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-MAPLFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-MAPLFL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field MVORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-MVORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-MVORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-LAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-LAUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEZFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-BEZFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-BEZFL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR1
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-VORNR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-VORNR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR2
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-VORNR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-VORNR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIP1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DWN04-UNIP1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DWN04-UNIP1.
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_DWN04_STR, 
RUECK TYPE STRING,
AUFNR TYPE STRING,
APLFL TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
SPLIT TYPE STRING,
KAPAR TYPE STRING,
BDEGR TYPE STRING,
MGVRG TYPE STRING,
ASVRG TYPE STRING,
MEINH TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,
KMEIN TYPE STRING,
UNTMG TYPE STRING,
UNTLI TYPE STRING,
UEBMG TYPE STRING,
UEBLI TYPE STRING,
MRFLG TYPE STRING,
USR00 TYPE STRING,
USR01 TYPE STRING,
USR04 TYPE STRING,
USE04 TYPE STRING,
ACTI1 TYPE STRING,
UNIT1 TYPE STRING,
ACTI2 TYPE STRING,
UNIT2 TYPE STRING,
ACTI3 TYPE STRING,
UNIT3 TYPE STRING,
ACTI4 TYPE STRING,
UNIT4 TYPE STRING,
ACTI5 TYPE STRING,
UNIT5 TYPE STRING,
ACTI6 TYPE STRING,
UNIT6 TYPE STRING,
LMNGA TYPE STRING,
XMNGA TYPE STRING,
RMNGA TYPE STRING,
STATV TYPE STRING,
STATA TYPE STRING,
STATE TYPE STRING,
ISM01 TYPE STRING,
ISM02 TYPE STRING,
ISM03 TYPE STRING,
ISM04 TYPE STRING,
ISM05 TYPE STRING,
ISM06 TYPE STRING,
LEK01 TYPE STRING,
LEK02 TYPE STRING,
LEK03 TYPE STRING,
LEK04 TYPE STRING,
LEK05 TYPE STRING,
LEK06 TYPE STRING,
ARBPL TYPE STRING,
WERKS TYPE STRING,
ARBPI TYPE STRING,
WERKI TYPE STRING,
ISMNW TYPE STRING,
ISMNE TYPE STRING,
ARBEI TYPE STRING,
ARBEH TYPE STRING,
OFMNW TYPE STRING,
OFMNE TYPE STRING,
LEKNW TYPE STRING,
RUEST TYPE STRING,
RSTZE TYPE STRING,
BEARZ TYPE STRING,
BEAZE TYPE STRING,
ABRUE TYPE STRING,
ARUZE TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
MAUFNR TYPE STRING,
MAPLFL TYPE STRING,
MVORNR TYPE STRING,
LAUFNR TYPE STRING,
BEZFL TYPE STRING,
VORNR1 TYPE STRING,
VORNR2 TYPE STRING,
FSAVD TYPE STRING,
FSAVZ TYPE STRING,
SSEDD TYPE STRING,
SSEDZ TYPE STRING,
PROZ1 TYPE STRING,
UNIP1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DWN04_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_DWN04_STR-RUECK sy-vline 
WA_DWN04_STR-AUFNR sy-vline 
WA_DWN04_STR-APLFL sy-vline 
WA_DWN04_STR-VORNR sy-vline 
WA_DWN04_STR-UVORN sy-vline 
WA_DWN04_STR-SPLIT sy-vline 
WA_DWN04_STR-KAPAR sy-vline 
WA_DWN04_STR-BDEGR sy-vline 
WA_DWN04_STR-MGVRG sy-vline 
WA_DWN04_STR-ASVRG sy-vline 
WA_DWN04_STR-MEINH sy-vline 
WA_DWN04_STR-UMREN sy-vline 
WA_DWN04_STR-UMREZ sy-vline 
WA_DWN04_STR-KMEIN sy-vline 
WA_DWN04_STR-UNTMG sy-vline 
WA_DWN04_STR-UNTLI sy-vline 
WA_DWN04_STR-UEBMG sy-vline 
WA_DWN04_STR-UEBLI sy-vline 
WA_DWN04_STR-MRFLG sy-vline 
WA_DWN04_STR-USR00 sy-vline 
WA_DWN04_STR-USR01 sy-vline 
WA_DWN04_STR-USR04 sy-vline 
WA_DWN04_STR-USE04 sy-vline 
WA_DWN04_STR-ACTI1 sy-vline 
WA_DWN04_STR-UNIT1 sy-vline 
WA_DWN04_STR-ACTI2 sy-vline 
WA_DWN04_STR-UNIT2 sy-vline 
WA_DWN04_STR-ACTI3 sy-vline 
WA_DWN04_STR-UNIT3 sy-vline 
WA_DWN04_STR-ACTI4 sy-vline 
WA_DWN04_STR-UNIT4 sy-vline 
WA_DWN04_STR-ACTI5 sy-vline 
WA_DWN04_STR-UNIT5 sy-vline 
WA_DWN04_STR-ACTI6 sy-vline 
WA_DWN04_STR-UNIT6 sy-vline 
WA_DWN04_STR-LMNGA sy-vline 
WA_DWN04_STR-XMNGA sy-vline 
WA_DWN04_STR-RMNGA sy-vline 
WA_DWN04_STR-STATV sy-vline 
WA_DWN04_STR-STATA sy-vline 
WA_DWN04_STR-STATE sy-vline 
WA_DWN04_STR-ISM01 sy-vline 
WA_DWN04_STR-ISM02 sy-vline 
WA_DWN04_STR-ISM03 sy-vline 
WA_DWN04_STR-ISM04 sy-vline 
WA_DWN04_STR-ISM05 sy-vline 
WA_DWN04_STR-ISM06 sy-vline 
WA_DWN04_STR-LEK01 sy-vline 
WA_DWN04_STR-LEK02 sy-vline 
WA_DWN04_STR-LEK03 sy-vline 
WA_DWN04_STR-LEK04 sy-vline 
WA_DWN04_STR-LEK05 sy-vline 
WA_DWN04_STR-LEK06 sy-vline 
WA_DWN04_STR-ARBPL sy-vline 
WA_DWN04_STR-WERKS sy-vline 
WA_DWN04_STR-ARBPI sy-vline 
WA_DWN04_STR-WERKI sy-vline 
WA_DWN04_STR-ISMNW sy-vline 
WA_DWN04_STR-ISMNE sy-vline 
WA_DWN04_STR-ARBEI sy-vline 
WA_DWN04_STR-ARBEH sy-vline 
WA_DWN04_STR-OFMNW sy-vline 
WA_DWN04_STR-OFMNE sy-vline 
WA_DWN04_STR-LEKNW sy-vline 
WA_DWN04_STR-RUEST sy-vline 
WA_DWN04_STR-RSTZE sy-vline 
WA_DWN04_STR-BEARZ sy-vline 
WA_DWN04_STR-BEAZE sy-vline 
WA_DWN04_STR-ABRUE sy-vline 
WA_DWN04_STR-ARUZE sy-vline 
WA_DWN04_STR-MATNR sy-vline 
WA_DWN04_STR-MAKTX sy-vline 
WA_DWN04_STR-MAUFNR sy-vline 
WA_DWN04_STR-MAPLFL sy-vline 
WA_DWN04_STR-MVORNR sy-vline 
WA_DWN04_STR-LAUFNR sy-vline 
WA_DWN04_STR-BEZFL sy-vline 
WA_DWN04_STR-VORNR1 sy-vline 
WA_DWN04_STR-VORNR2 sy-vline 
WA_DWN04_STR-FSAVD sy-vline 
WA_DWN04_STR-FSAVZ sy-vline 
WA_DWN04_STR-SSEDD sy-vline 
WA_DWN04_STR-SSEDZ sy-vline 
WA_DWN04_STR-PROZ1 sy-vline 
WA_DWN04_STR-UNIP1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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