ABAP Select data from SAP table MCVBUP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCVBUP
*  INTO TABLE @DATA(IT_MCVBUP2).
*--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_MCVBUP INDEX 1 INTO DATA(WA_MCVBUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCVBUP>-MANDT = 1.
<MCVBUP>-VBELN = 1.
<MCVBUP>-POSNR = 1.
<MCVBUP>-RFSTA = 1.
<MCVBUP>-RFGSA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCVBUP-BESTA, sy-vline,
  WA_MCVBUP-LFSTA, sy-vline,
  WA_MCVBUP-LFGSA, sy-vline,
  WA_MCVBUP-WBSTA, sy-vline,
  WA_MCVBUP-FKSTA, sy-vline,
  WA_MCVBUP-FKSAA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCVBUP 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_MCVBUP 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_MCVBUP INTO WA_MCVBUP.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCVBUP-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVBUP-VBELN.
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_MCVBUP_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
RFSTA TYPE STRING,
RFGSA TYPE STRING,
BESTA TYPE STRING,
LFSTA TYPE STRING,
LFGSA TYPE STRING,
WBSTA TYPE STRING,
FKSTA TYPE STRING,
FKSAA TYPE STRING,
ABSTA TYPE STRING,
GBSTA TYPE STRING,
KOSTA TYPE STRING,
LVSTA TYPE STRING,
UVALL TYPE STRING,
UVVLK TYPE STRING,
UVFAK TYPE STRING,
UVPRS TYPE STRING,
FKIVP TYPE STRING,
UVP01 TYPE STRING,
UVP02 TYPE STRING,
UVP03 TYPE STRING,
UVP04 TYPE STRING,
UVP05 TYPE STRING,
PKSTA TYPE STRING,
KOQUA TYPE STRING,
COSTA TYPE STRING,
CMPPI TYPE STRING,
CMPPJ TYPE STRING,
UVPIK TYPE STRING,
UVPAK TYPE STRING,
UVWAK TYPE STRING,
DCSTA TYPE STRING,
RRSTA TYPE STRING,
VLSTP TYPE STRING,
FSSTA TYPE STRING,
LSSTA TYPE STRING,
PDSTA TYPE STRING,
MANEK TYPE STRING,
HDALL TYPE STRING,
ARC_STATUS TYPE STRING,
SHP_PCSTA TYPE STRING,
SHP_DGSTA TYPE STRING,
SHP_SDSSTA TYPE STRING,
ICO_FKIVP TYPE STRING,
TOTAL_FKIVP TYPE STRING,
DELIV_RELTD_BILLG_STA TYPE STRING,
SHP_EMCST TYPE STRING,
SHP_SLCST TYPE STRING,
SHP_LCCST TYPE STRING,
/SAPMP/LBASP TYPE STRING,
FSH_AR_STAT_ITM TYPE STRING,
MILL_VS_VSSTA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCVBUP_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_MCVBUP_STR-MANDT sy-vline 
WA_MCVBUP_STR-VBELN sy-vline 
WA_MCVBUP_STR-POSNR sy-vline 
WA_MCVBUP_STR-RFSTA sy-vline 
WA_MCVBUP_STR-RFGSA sy-vline 
WA_MCVBUP_STR-BESTA sy-vline 
WA_MCVBUP_STR-LFSTA sy-vline 
WA_MCVBUP_STR-LFGSA sy-vline 
WA_MCVBUP_STR-WBSTA sy-vline 
WA_MCVBUP_STR-FKSTA sy-vline 
WA_MCVBUP_STR-FKSAA sy-vline 
WA_MCVBUP_STR-ABSTA sy-vline 
WA_MCVBUP_STR-GBSTA sy-vline 
WA_MCVBUP_STR-KOSTA sy-vline 
WA_MCVBUP_STR-LVSTA sy-vline 
WA_MCVBUP_STR-UVALL sy-vline 
WA_MCVBUP_STR-UVVLK sy-vline 
WA_MCVBUP_STR-UVFAK sy-vline 
WA_MCVBUP_STR-UVPRS sy-vline 
WA_MCVBUP_STR-FKIVP sy-vline 
WA_MCVBUP_STR-UVP01 sy-vline 
WA_MCVBUP_STR-UVP02 sy-vline 
WA_MCVBUP_STR-UVP03 sy-vline 
WA_MCVBUP_STR-UVP04 sy-vline 
WA_MCVBUP_STR-UVP05 sy-vline 
WA_MCVBUP_STR-PKSTA sy-vline 
WA_MCVBUP_STR-KOQUA sy-vline 
WA_MCVBUP_STR-COSTA sy-vline 
WA_MCVBUP_STR-CMPPI sy-vline 
WA_MCVBUP_STR-CMPPJ sy-vline 
WA_MCVBUP_STR-UVPIK sy-vline 
WA_MCVBUP_STR-UVPAK sy-vline 
WA_MCVBUP_STR-UVWAK sy-vline 
WA_MCVBUP_STR-DCSTA sy-vline 
WA_MCVBUP_STR-RRSTA sy-vline 
WA_MCVBUP_STR-VLSTP sy-vline 
WA_MCVBUP_STR-FSSTA sy-vline 
WA_MCVBUP_STR-LSSTA sy-vline 
WA_MCVBUP_STR-PDSTA sy-vline 
WA_MCVBUP_STR-MANEK sy-vline 
WA_MCVBUP_STR-HDALL sy-vline 
WA_MCVBUP_STR-ARC_STATUS sy-vline 
WA_MCVBUP_STR-SHP_PCSTA sy-vline 
WA_MCVBUP_STR-SHP_DGSTA sy-vline 
WA_MCVBUP_STR-SHP_SDSSTA sy-vline 
WA_MCVBUP_STR-ICO_FKIVP sy-vline 
WA_MCVBUP_STR-TOTAL_FKIVP sy-vline 
WA_MCVBUP_STR-DELIV_RELTD_BILLG_STA sy-vline 
WA_MCVBUP_STR-SHP_EMCST sy-vline 
WA_MCVBUP_STR-SHP_SLCST sy-vline 
WA_MCVBUP_STR-SHP_LCCST sy-vline 
WA_MCVBUP_STR-/SAPMP/LBASP sy-vline 
WA_MCVBUP_STR-FSH_AR_STAT_ITM sy-vline 
WA_MCVBUP_STR-MILL_VS_VSSTA sy-vline      INTO ld_text SEPARATED BY SPACE.

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