ABAP Select data from SAP table MC12VC4SCL 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 MC12VC4SCL 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 MC12VC4SCL. 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 MC12VC4SCL 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_MC12VC4SCL TYPE STANDARD TABLE OF MC12VC4SCL,
      WA_MC12VC4SCL TYPE MC12VC4SCL,
      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: <MC12VC4SCL> TYPE MC12VC4SCL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC12VC4SCL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC12VC4SCL
  INTO TABLE IT_MC12VC4SCL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC12VC4SCL
*  INTO TABLE @DATA(IT_MC12VC4SCL2).
*--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_MC12VC4SCL INDEX 1 INTO DATA(WA_MC12VC4SCL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC12VC4SCL ASSIGNING <MC12VC4SCL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC12VC4SCL>-AEDAT = 1.
<MC12VC4SCL>-CHARG = 1.
<MC12VC4SCL>-EAN11 = 1.
<MC12VC4SCL>-ERDAT = 1.
<MC12VC4SCL>-ERNAM = 1.

ENDLOOP.

LOOP AT IT_MC12VC4SCL INTO WA_MC12VC4SCL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC12VC4SCL-ERZET, sy-vline,
  WA_MC12VC4SCL-FAKSP, sy-vline,
  WA_MC12VC4SCL-GSBER, sy-vline,
  WA_MC12VC4SCL-KOMKZ, sy-vline,
  WA_MC12VC4SCL-KVGR1, sy-vline,
  WA_MC12VC4SCL-KVGR2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC12VC4SCL 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_MC12VC4SCL 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_MC12VC4SCL INTO WA_MC12VC4SCL.


*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 EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_MC12VC4SCL-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC12VC4SCL-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MC12VC4SCL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC12VC4SCL-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC12VC4SCL-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC12VC4SCL-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC12VC4SCL-PKUNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC12VC4SCL-PKUNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKUNRG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC12VC4SCL-PKUNRG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC12VC4SCL-PKUNRG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PSPDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC12VC4SCL-PSPDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC12VC4SCL-PSPDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC12VC4SCL-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC12VC4SCL-VRKME.
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_MC12VC4SCL_STR, 
AEDAT TYPE STRING,
CHARG TYPE STRING,
EAN11 TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
ERZET TYPE STRING,
FAKSP TYPE STRING,
GSBER TYPE STRING,
KOMKZ TYPE STRING,
KVGR1 TYPE STRING,
KVGR2 TYPE STRING,
KVGR3 TYPE STRING,
KVGR4 TYPE STRING,
KVGR5 TYPE STRING,
KZVBR TYPE STRING,
LGNUM TYPE STRING,
LGORT TYPE STRING,
LGPLA TYPE STRING,
LGTYP TYPE STRING,
MATKL TYPE STRING,
MATNR TYPE STRING,
MEINS TYPE STRING,
MVGR1 TYPE STRING,
MVGR2 TYPE STRING,
MVGR3 TYPE STRING,
MVGR4 TYPE STRING,
MVGR5 TYPE STRING,
PKUNRE TYPE STRING,
PKUNRG TYPE STRING,
POSAR TYPE STRING,
PRODH TYPE STRING,
PSPDNR TYPE STRING,
PSTYV TYPE STRING,
PVRTNR TYPE STRING,
STADAT TYPE STRING,
UMVKN TYPE STRING,
UMVKZ TYPE STRING,
VDATU TYPE STRING,
VGTYP TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
VRKME TYPE STRING,
VTWEG TYPE STRING,
WERKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC12VC4SCL_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_MC12VC4SCL_STR-AEDAT sy-vline 
WA_MC12VC4SCL_STR-CHARG sy-vline 
WA_MC12VC4SCL_STR-EAN11 sy-vline 
WA_MC12VC4SCL_STR-ERDAT sy-vline 
WA_MC12VC4SCL_STR-ERNAM sy-vline 
WA_MC12VC4SCL_STR-ERZET sy-vline 
WA_MC12VC4SCL_STR-FAKSP sy-vline 
WA_MC12VC4SCL_STR-GSBER sy-vline 
WA_MC12VC4SCL_STR-KOMKZ sy-vline 
WA_MC12VC4SCL_STR-KVGR1 sy-vline 
WA_MC12VC4SCL_STR-KVGR2 sy-vline 
WA_MC12VC4SCL_STR-KVGR3 sy-vline 
WA_MC12VC4SCL_STR-KVGR4 sy-vline 
WA_MC12VC4SCL_STR-KVGR5 sy-vline 
WA_MC12VC4SCL_STR-KZVBR sy-vline 
WA_MC12VC4SCL_STR-LGNUM sy-vline 
WA_MC12VC4SCL_STR-LGORT sy-vline 
WA_MC12VC4SCL_STR-LGPLA sy-vline 
WA_MC12VC4SCL_STR-LGTYP sy-vline 
WA_MC12VC4SCL_STR-MATKL sy-vline 
WA_MC12VC4SCL_STR-MATNR sy-vline 
WA_MC12VC4SCL_STR-MEINS sy-vline 
WA_MC12VC4SCL_STR-MVGR1 sy-vline 
WA_MC12VC4SCL_STR-MVGR2 sy-vline 
WA_MC12VC4SCL_STR-MVGR3 sy-vline 
WA_MC12VC4SCL_STR-MVGR4 sy-vline 
WA_MC12VC4SCL_STR-MVGR5 sy-vline 
WA_MC12VC4SCL_STR-PKUNRE sy-vline 
WA_MC12VC4SCL_STR-PKUNRG sy-vline 
WA_MC12VC4SCL_STR-POSAR sy-vline 
WA_MC12VC4SCL_STR-PRODH sy-vline 
WA_MC12VC4SCL_STR-PSPDNR sy-vline 
WA_MC12VC4SCL_STR-PSTYV sy-vline 
WA_MC12VC4SCL_STR-PVRTNR sy-vline 
WA_MC12VC4SCL_STR-STADAT sy-vline 
WA_MC12VC4SCL_STR-UMVKN sy-vline 
WA_MC12VC4SCL_STR-UMVKZ sy-vline 
WA_MC12VC4SCL_STR-VDATU sy-vline 
WA_MC12VC4SCL_STR-VGTYP sy-vline 
WA_MC12VC4SCL_STR-VKBUR sy-vline 
WA_MC12VC4SCL_STR-VKGRP sy-vline 
WA_MC12VC4SCL_STR-VRKME sy-vline 
WA_MC12VC4SCL_STR-VTWEG sy-vline 
WA_MC12VC4SCL_STR-WERKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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