ABAP Select data from SAP table RECNVZZKOPO_DI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECNVZZKOPO_DI
*  INTO TABLE @DATA(IT_RECNVZZKOPO_DI2).
*--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_RECNVZZKOPO_DI INDEX 1 INTO DATA(WA_RECNVZZKOPO_DI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECNVZZKOPO_DI>-VZZKOPO_EMPTY = 1.
<RECNVZZKOPO_DI>-SKOART = 1.
<RECNVZZKOPO_DI>-DGUEL_KP = 1.
<RECNVZZKOPO_DI>-SSTATI = 1.
<RECNVZZKOPO_DI>-PKOND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECNVZZKOPO_DI-BKOND, sy-vline,
  WA_RECNVZZKOPO_DI-AMMRHY, sy-vline,
  WA_RECNVZZKOPO_DI-ATTRHY, sy-vline,
  WA_RECNVZZKOPO_DI-SZAWS, sy-vline,
  WA_RECNVZZKOPO_DI-JNULLKON, sy-vline,
  WA_RECNVZZKOPO_DI-MWSKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECNVZZKOPO_DI 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_RECNVZZKOPO_DI 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_RECNVZZKOPO_DI INTO WA_RECNVZZKOPO_DI.


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

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

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

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RECNVZZKOPO_DI-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECNVZZKOPO_DI-KOSTL.
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_RECNVZZKOPO_DI_STR, 
VZZKOPO_EMPTY TYPE STRING,
SKOART TYPE STRING,
DGUEL_KP TYPE STRING,
SSTATI TYPE STRING,
PKOND TYPE STRING,
BKOND TYPE STRING,
AMMRHY TYPE STRING,
ATTRHY TYPE STRING,
SZAWS TYPE STRING,
JNULLKON TYPE STRING,
MWSKZ TYPE STRING,
JBMONAT TYPE STRING,
DVALUT TYPE STRING,
DFAELL TYPE STRING,
KUNNR TYPE STRING,
KOZLSCH TYPE STRING,
BVTYP TYPE STRING,
MABER TYPE STRING,
KOSPARTNR TYPE STRING,
SVULT TYPE STRING,
SFULT TYPE STRING,
SFKALRI TYPE STRING,
SZBMETH TYPE STRING,
DALLGEM TYPE STRING,
SKOPO TYPE STRING,
SALTKOND TYPE STRING,
SINCL TYPE STRING,
SVWERK TYPE STRING,
SVMETH TYPE STRING,
SFWERK TYPE STRING,
SFMETH TYPE STRING,
SZEITANT TYPE STRING,
MANSP TYPE STRING,
ZAHLS TYPE STRING,
BKONDQM TYPE STRING,
JAREA TYPE STRING,
SFLART TYPE STRING,
TXJCD TYPE STRING,
LIFNR TYPE STRING,
KOSTL TYPE STRING,
GFZLSCH TYPE STRING,
ZLSPR TYPE STRING,
JEINMKON TYPE STRING,
RESZBMETH TYPE STRING,
RESZEITANT TYPE STRING,
BMWST TYPE STRING,
XCROSS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECNVZZKOPO_DI_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_RECNVZZKOPO_DI_STR-VZZKOPO_EMPTY sy-vline 
WA_RECNVZZKOPO_DI_STR-SKOART sy-vline 
WA_RECNVZZKOPO_DI_STR-DGUEL_KP sy-vline 
WA_RECNVZZKOPO_DI_STR-SSTATI sy-vline 
WA_RECNVZZKOPO_DI_STR-PKOND sy-vline 
WA_RECNVZZKOPO_DI_STR-BKOND sy-vline 
WA_RECNVZZKOPO_DI_STR-AMMRHY sy-vline 
WA_RECNVZZKOPO_DI_STR-ATTRHY sy-vline 
WA_RECNVZZKOPO_DI_STR-SZAWS sy-vline 
WA_RECNVZZKOPO_DI_STR-JNULLKON sy-vline 
WA_RECNVZZKOPO_DI_STR-MWSKZ sy-vline 
WA_RECNVZZKOPO_DI_STR-JBMONAT sy-vline 
WA_RECNVZZKOPO_DI_STR-DVALUT sy-vline 
WA_RECNVZZKOPO_DI_STR-DFAELL sy-vline 
WA_RECNVZZKOPO_DI_STR-KUNNR sy-vline 
WA_RECNVZZKOPO_DI_STR-KOZLSCH sy-vline 
WA_RECNVZZKOPO_DI_STR-BVTYP sy-vline 
WA_RECNVZZKOPO_DI_STR-MABER sy-vline 
WA_RECNVZZKOPO_DI_STR-KOSPARTNR sy-vline 
WA_RECNVZZKOPO_DI_STR-SVULT sy-vline 
WA_RECNVZZKOPO_DI_STR-SFULT sy-vline 
WA_RECNVZZKOPO_DI_STR-SFKALRI sy-vline 
WA_RECNVZZKOPO_DI_STR-SZBMETH sy-vline 
WA_RECNVZZKOPO_DI_STR-DALLGEM sy-vline 
WA_RECNVZZKOPO_DI_STR-SKOPO sy-vline 
WA_RECNVZZKOPO_DI_STR-SALTKOND sy-vline 
WA_RECNVZZKOPO_DI_STR-SINCL sy-vline 
WA_RECNVZZKOPO_DI_STR-SVWERK sy-vline 
WA_RECNVZZKOPO_DI_STR-SVMETH sy-vline 
WA_RECNVZZKOPO_DI_STR-SFWERK sy-vline 
WA_RECNVZZKOPO_DI_STR-SFMETH sy-vline 
WA_RECNVZZKOPO_DI_STR-SZEITANT sy-vline 
WA_RECNVZZKOPO_DI_STR-MANSP sy-vline 
WA_RECNVZZKOPO_DI_STR-ZAHLS sy-vline 
WA_RECNVZZKOPO_DI_STR-BKONDQM sy-vline 
WA_RECNVZZKOPO_DI_STR-JAREA sy-vline 
WA_RECNVZZKOPO_DI_STR-SFLART sy-vline 
WA_RECNVZZKOPO_DI_STR-TXJCD sy-vline 
WA_RECNVZZKOPO_DI_STR-LIFNR sy-vline 
WA_RECNVZZKOPO_DI_STR-KOSTL sy-vline 
WA_RECNVZZKOPO_DI_STR-GFZLSCH sy-vline 
WA_RECNVZZKOPO_DI_STR-ZLSPR sy-vline 
WA_RECNVZZKOPO_DI_STR-JEINMKON sy-vline 
WA_RECNVZZKOPO_DI_STR-RESZBMETH sy-vline 
WA_RECNVZZKOPO_DI_STR-RESZEITANT sy-vline 
WA_RECNVZZKOPO_DI_STR-BMWST sy-vline 
WA_RECNVZZKOPO_DI_STR-XCROSS sy-vline      INTO ld_text SEPARATED BY SPACE.

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