ABAP Select data from SAP table MILL_CL_FIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MILL_CL_FIELDS 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 MILL_CL_FIELDS. 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 MILL_CL_FIELDS 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_MILL_CL_FIELDS TYPE STANDARD TABLE OF MILL_CL_FIELDS,
      WA_MILL_CL_FIELDS TYPE MILL_CL_FIELDS,
      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: <MILL_CL_FIELDS> TYPE MILL_CL_FIELDS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MILL_CL_FIELDS
*  INTO TABLE @DATA(IT_MILL_CL_FIELDS2).
*--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_MILL_CL_FIELDS INDEX 1 INTO DATA(WA_MILL_CL_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MILL_CL_FIELDS>-MATNR = 1.
<MILL_CL_FIELDS>-MAKTX = 1.
<MILL_CL_FIELDS>-WERKS = 1.
<MILL_CL_FIELDS>-NAME1 = 1.
<MILL_CL_FIELDS>-LGORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MILL_CL_FIELDS-COPYICON, sy-vline,
  WA_MILL_CL_FIELDS-CHARG, sy-vline,
  WA_MILL_CL_FIELDS-MMBEICON, sy-vline,
  WA_MILL_CL_FIELDS-MD04ICON, sy-vline,
  WA_MILL_CL_FIELDS-SOBKZ, sy-vline,
  WA_MILL_CL_FIELDS-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MILL_CL_FIELDS 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_MILL_CL_FIELDS 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_MILL_CL_FIELDS INTO WA_MILL_CL_FIELDS.


*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_MILL_CL_FIELDS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_CL_FIELDS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MILL_CL_FIELDS-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_CL_FIELDS-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MILL_CL_FIELDS-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MILL_CL_FIELDS-MEINH.
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_MILL_CL_FIELDS_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
WERKS TYPE STRING,
NAME1 TYPE STRING,
LGORT TYPE STRING,
COPYICON TYPE STRING,
CHARG TYPE STRING,
MMBEICON TYPE STRING,
MD04ICON TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PSPNR TYPE STRING,
LTEXT TYPE STRING,
OBJ TYPE STRING,
CVAL0 TYPE STRING,
CVAL1 TYPE STRING,
CVAL2 TYPE STRING,
CVAL3 TYPE STRING,
CVAL4 TYPE STRING,
CVAL5 TYPE STRING,
CVAL6 TYPE STRING,
CVAL7 TYPE STRING,
CVAL8 TYPE STRING,
CVAL9 TYPE STRING,
NVAL0 TYPE STRING,
NVAL1 TYPE STRING,
NVAL2 TYPE STRING,
NVAL3 TYPE STRING,
NVAL4 TYPE STRING,
NVAL5 TYPE STRING,
NVAL6 TYPE STRING,
NVAL7 TYPE STRING,
NVAL8 TYPE STRING,
NVAL9 TYPE STRING,
UCMAT TYPE STRING,
UCWRK TYPE STRING,
UCCHA TYPE STRING,
MEINS TYPE STRING,
LABST TYPE STRING,
UMLME TYPE STRING,
INSME TYPE STRING,
EINME TYPE STRING,
SPEME TYPE STRING,
RETME TYPE STRING,
VBMNA TYPE STRING,
VBMNB TYPE STRING,
VBMNC TYPE STRING,
VBMNE TYPE STRING,
VBMNG TYPE STRING,
VBMNI TYPE STRING,
OMENG TYPE STRING,
BDMNG TYPE STRING,
BDMNS TYPE STRING,
KLABS TYPE STRING,
KINSM TYPE STRING,
KEINM TYPE STRING,
KSPEM TYPE STRING,
KALAB TYPE STRING,
KAINS TYPE STRING,
KASPE TYPE STRING,
KAEIN TYPE STRING,
MLABS TYPE STRING,
MINSM TYPE STRING,
MEINM TYPE STRING,
MSPEM TYPE STRING,
PRLAB TYPE STRING,
PRINS TYPE STRING,
PRSPE TYPE STRING,
MENGE TYPE STRING,
MENGK TYPE STRING,
PREIN TYPE STRING,
MEINH TYPE STRING,
LABST_ALT TYPE STRING,
UMLME_ALT TYPE STRING,
INSME_ALT TYPE STRING,
EINME_ALT TYPE STRING,
SPEME_ALT TYPE STRING,
RETME_ALT TYPE STRING,
VBMNA_ALT TYPE STRING,
VBMNB_ALT TYPE STRING,
VBMNC_ALT TYPE STRING,
VBMNE_ALT TYPE STRING,
VBMNG_ALT TYPE STRING,
VBMNI_ALT TYPE STRING,
OMENG_ALT TYPE STRING,
BDMNG_ALT TYPE STRING,
BDMNS_ALT TYPE STRING,
KLABS_ALT TYPE STRING,
KINSM_ALT TYPE STRING,
KEINM_ALT TYPE STRING,
KSPEM_ALT TYPE STRING,
KALAB_ALT TYPE STRING,
KAINS_ALT TYPE STRING,
KASPE_ALT TYPE STRING,
KAEIN_ALT TYPE STRING,
MLABS_ALT TYPE STRING,
MINSM_ALT TYPE STRING,
MEINM_ALT TYPE STRING,
MSPEM_ALT TYPE STRING,
PRLAB_ALT TYPE STRING,
PRINS_ALT TYPE STRING,
MENGE_ALT TYPE STRING,
MENGK_ALT TYPE STRING,
PRSPE_ALT TYPE STRING,
PREIN_ALT TYPE STRING,
BOX TYPE STRING,
DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MILL_CL_FIELDS_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_MILL_CL_FIELDS_STR-MATNR sy-vline 
WA_MILL_CL_FIELDS_STR-MAKTX sy-vline 
WA_MILL_CL_FIELDS_STR-WERKS sy-vline 
WA_MILL_CL_FIELDS_STR-NAME1 sy-vline 
WA_MILL_CL_FIELDS_STR-LGORT sy-vline 
WA_MILL_CL_FIELDS_STR-COPYICON sy-vline 
WA_MILL_CL_FIELDS_STR-CHARG sy-vline 
WA_MILL_CL_FIELDS_STR-MMBEICON sy-vline 
WA_MILL_CL_FIELDS_STR-MD04ICON sy-vline 
WA_MILL_CL_FIELDS_STR-SOBKZ sy-vline 
WA_MILL_CL_FIELDS_STR-LIFNR sy-vline 
WA_MILL_CL_FIELDS_STR-KUNNR sy-vline 
WA_MILL_CL_FIELDS_STR-VBELN sy-vline 
WA_MILL_CL_FIELDS_STR-POSNR sy-vline 
WA_MILL_CL_FIELDS_STR-PSPNR sy-vline 
WA_MILL_CL_FIELDS_STR-LTEXT sy-vline 
WA_MILL_CL_FIELDS_STR-OBJ sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL0 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL1 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL2 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL3 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL4 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL5 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL6 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL7 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL8 sy-vline 
WA_MILL_CL_FIELDS_STR-CVAL9 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL0 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL1 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL2 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL3 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL4 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL5 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL6 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL7 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL8 sy-vline 
WA_MILL_CL_FIELDS_STR-NVAL9 sy-vline 
WA_MILL_CL_FIELDS_STR-UCMAT sy-vline 
WA_MILL_CL_FIELDS_STR-UCWRK sy-vline 
WA_MILL_CL_FIELDS_STR-UCCHA sy-vline 
WA_MILL_CL_FIELDS_STR-MEINS sy-vline 
WA_MILL_CL_FIELDS_STR-LABST sy-vline 
WA_MILL_CL_FIELDS_STR-UMLME sy-vline 
WA_MILL_CL_FIELDS_STR-INSME sy-vline 
WA_MILL_CL_FIELDS_STR-EINME sy-vline 
WA_MILL_CL_FIELDS_STR-SPEME sy-vline 
WA_MILL_CL_FIELDS_STR-RETME sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNA sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNB sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNC sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNE sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNG sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNI sy-vline 
WA_MILL_CL_FIELDS_STR-OMENG sy-vline 
WA_MILL_CL_FIELDS_STR-BDMNG sy-vline 
WA_MILL_CL_FIELDS_STR-BDMNS sy-vline 
WA_MILL_CL_FIELDS_STR-KLABS sy-vline 
WA_MILL_CL_FIELDS_STR-KINSM sy-vline 
WA_MILL_CL_FIELDS_STR-KEINM sy-vline 
WA_MILL_CL_FIELDS_STR-KSPEM sy-vline 
WA_MILL_CL_FIELDS_STR-KALAB sy-vline 
WA_MILL_CL_FIELDS_STR-KAINS sy-vline 
WA_MILL_CL_FIELDS_STR-KASPE sy-vline 
WA_MILL_CL_FIELDS_STR-KAEIN sy-vline 
WA_MILL_CL_FIELDS_STR-MLABS sy-vline 
WA_MILL_CL_FIELDS_STR-MINSM sy-vline 
WA_MILL_CL_FIELDS_STR-MEINM sy-vline 
WA_MILL_CL_FIELDS_STR-MSPEM sy-vline 
WA_MILL_CL_FIELDS_STR-PRLAB sy-vline 
WA_MILL_CL_FIELDS_STR-PRINS sy-vline 
WA_MILL_CL_FIELDS_STR-PRSPE sy-vline 
WA_MILL_CL_FIELDS_STR-MENGE sy-vline 
WA_MILL_CL_FIELDS_STR-MENGK sy-vline 
WA_MILL_CL_FIELDS_STR-PREIN sy-vline 
WA_MILL_CL_FIELDS_STR-MEINH sy-vline 
WA_MILL_CL_FIELDS_STR-LABST_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-UMLME_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-INSME_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-EINME_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-SPEME_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-RETME_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNA_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNB_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNC_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNE_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNG_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-VBMNI_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-OMENG_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-BDMNG_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-BDMNS_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KLABS_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KINSM_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KEINM_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KSPEM_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KALAB_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KAINS_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KASPE_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-KAEIN_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-MLABS_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-MINSM_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-MEINM_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-MSPEM_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-PRLAB_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-PRINS_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-MENGE_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-MENGK_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-PRSPE_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-PREIN_ALT sy-vline 
WA_MILL_CL_FIELDS_STR-BOX sy-vline 
WA_MILL_CL_FIELDS_STR-DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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