ABAP Select data from SAP table VADCP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VADCP
*  INTO TABLE @DATA(IT_VADCP2).
*--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_VADCP INDEX 1 INTO DATA(WA_VADCP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VADCP>-CLIENT = 1.
<VADCP>-ADDRNUMBER = 1.
<VADCP>-PERSNUMBER = 1.
<VADCP>-DATE_FROM = 1.
<VADCP>-NATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VADCP-DATE_TO, sy-vline,
  WA_VADCP-COMP_PERS, sy-vline,
  WA_VADCP-SO_KEY, sy-vline,
  WA_VADCP-DEPARTMENT, sy-vline,
  WA_VADCP-FUNCTION, sy-vline,
  WA_VADCP-BUILDING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VADCP 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_VADCP 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_VADCP INTO WA_VADCP.


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

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

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

*Conversion exit ALPHA, internal->external for field ALT_COMPNY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VADCP-ALT_COMPNY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VADCP-ALT_COMPNY.
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_VADCP_STR, 
CLIENT TYPE STRING,
ADDRNUMBER TYPE STRING,
PERSNUMBER TYPE STRING,
DATE_FROM TYPE STRING,
NATION TYPE STRING,
DATE_TO TYPE STRING,
COMP_PERS TYPE STRING,
SO_KEY TYPE STRING,
DEPARTMENT TYPE STRING,
FUNCTION TYPE STRING,
BUILDING TYPE STRING,
FLOOR TYPE STRING,
ROOMNUMBER TYPE STRING,
ID_CODE TYPE STRING,
IH_MAIL TYPE STRING,
SORT1 TYPE STRING,
SORT2 TYPE STRING,
SORT_PHN TYPE STRING,
ALT_COMPNY TYPE STRING,
DEFLT_COMM TYPE STRING,
TEL_NUMBER TYPE STRING,
TEL_EXTENS TYPE STRING,
FAX_NUMBER TYPE STRING,
FAX_EXTENS TYPE STRING,
FLAGCOMM2 TYPE STRING,
FLAGCOMM3 TYPE STRING,
FLAGCOMM4 TYPE STRING,
FLAGCOMM5 TYPE STRING,
FLAGCOMM6 TYPE STRING,
FLAGCOMM7 TYPE STRING,
FLAGCOMM8 TYPE STRING,
FLAGCOMM9 TYPE STRING,
FLAGCOMM10 TYPE STRING,
FLAGCOMM11 TYPE STRING,
FLAGCOMM12 TYPE STRING,
FLAGCOMM13 TYPE STRING,
ADCP_UUID TYPE STRING,
UUID_BELATED TYPE STRING,
ID_CATEGORY TYPE STRING,
ADCP_ERR_STATUS TYPE STRING,
XPCPT TYPE STRING,
_DATAAGING TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VADCP_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_VADCP_STR-CLIENT sy-vline 
WA_VADCP_STR-ADDRNUMBER sy-vline 
WA_VADCP_STR-PERSNUMBER sy-vline 
WA_VADCP_STR-DATE_FROM sy-vline 
WA_VADCP_STR-NATION sy-vline 
WA_VADCP_STR-DATE_TO sy-vline 
WA_VADCP_STR-COMP_PERS sy-vline 
WA_VADCP_STR-SO_KEY sy-vline 
WA_VADCP_STR-DEPARTMENT sy-vline 
WA_VADCP_STR-FUNCTION sy-vline 
WA_VADCP_STR-BUILDING sy-vline 
WA_VADCP_STR-FLOOR sy-vline 
WA_VADCP_STR-ROOMNUMBER sy-vline 
WA_VADCP_STR-ID_CODE sy-vline 
WA_VADCP_STR-IH_MAIL sy-vline 
WA_VADCP_STR-SORT1 sy-vline 
WA_VADCP_STR-SORT2 sy-vline 
WA_VADCP_STR-SORT_PHN sy-vline 
WA_VADCP_STR-ALT_COMPNY sy-vline 
WA_VADCP_STR-DEFLT_COMM sy-vline 
WA_VADCP_STR-TEL_NUMBER sy-vline 
WA_VADCP_STR-TEL_EXTENS sy-vline 
WA_VADCP_STR-FAX_NUMBER sy-vline 
WA_VADCP_STR-FAX_EXTENS sy-vline 
WA_VADCP_STR-FLAGCOMM2 sy-vline 
WA_VADCP_STR-FLAGCOMM3 sy-vline 
WA_VADCP_STR-FLAGCOMM4 sy-vline 
WA_VADCP_STR-FLAGCOMM5 sy-vline 
WA_VADCP_STR-FLAGCOMM6 sy-vline 
WA_VADCP_STR-FLAGCOMM7 sy-vline 
WA_VADCP_STR-FLAGCOMM8 sy-vline 
WA_VADCP_STR-FLAGCOMM9 sy-vline 
WA_VADCP_STR-FLAGCOMM10 sy-vline 
WA_VADCP_STR-FLAGCOMM11 sy-vline 
WA_VADCP_STR-FLAGCOMM12 sy-vline 
WA_VADCP_STR-FLAGCOMM13 sy-vline 
WA_VADCP_STR-ADCP_UUID sy-vline 
WA_VADCP_STR-UUID_BELATED sy-vline 
WA_VADCP_STR-ID_CATEGORY sy-vline 
WA_VADCP_STR-ADCP_ERR_STATUS sy-vline 
WA_VADCP_STR-XPCPT sy-vline 
WA_VADCP_STR-_DATAAGING sy-vline 
WA_VADCP_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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