ABAP Select data from SAP table CVDDPIOT 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 CVDDPIOT 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 CVDDPIOT. 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 CVDDPIOT 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_CVDDPIOT TYPE STANDARD TABLE OF CVDDPIOT,
      WA_CVDDPIOT TYPE CVDDPIOT,
      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: <CVDDPIOT> TYPE CVDDPIOT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CVDDPIOT
*  INTO TABLE @DATA(IT_CVDDPIOT2).
*--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_CVDDPIOT INDEX 1 INTO DATA(WA_CVDDPIOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CVDDPIOT>-MARKFLG = 1.
<CVDDPIOT>-SELEFLG = 1.
<CVDDPIOT>-LINENO = 1.
<CVDDPIOT>-LINEMOD = 1.
<CVDDPIOT>-CHCOFLG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CVDDPIOT-LOCKMOD, sy-vline,
  WA_CVDDPIOT-INTRFLG, sy-vline,
  WA_CVDDPIOT-MANDT, sy-vline,
  WA_CVDDPIOT-RECN, sy-vline,
  WA_CVDDPIOT-ACTN, sy-vline,
  WA_CVDDPIOT-VALFR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CVDDPIOT 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_CVDDPIOT 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_CVDDPIOT INTO WA_CVDDPIOT.


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

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

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

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

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

*Conversion exit ISOLA, internal->external for field TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CVDDPIOT-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDPIOT-TDSPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CVDDPIOT-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVDDPIOT-LANGU.
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_CVDDPIOT_STR, 
MARKFLG TYPE STRING,
SELEFLG TYPE STRING,
LINENO TYPE STRING,
LINEMOD TYPE STRING,
CHCOFLG TYPE STRING,
LOCKMOD TYPE STRING,
INTRFLG TYPE STRING,
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
OBJECT TYPE STRING,
ATTRIB TYPE STRING,
ORD TYPE STRING,
VALUETYPE TYPE STRING,
VALUE TYPE STRING,
TDOBJECT TYPE STRING,
TDID TYPE STRING,
TDNAME TYPE STRING,
TDSPRAS TYPE STRING,
REPPARAFLG TYPE STRING,
VALUECHFLG TYPE STRING,
DEFPARAFLG TYPE STRING,
APPLOBJKEYFLG TYPE STRING,
LSYFKPA TYPE STRING,
REQUIREDFLG TYPE STRING,
SHOWONLYFLG TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
PARHIER TYPE STRING,
PAROBJ TYPE STRING,
PAROBJKEY TYPE STRING,
PAROBJPAR TYPE STRING,
PAROBJPARKEY TYPE STRING,
LENRECD TYPE STRING,
FILEP TYPE STRING,
LANGU TYPE STRING,
RVLID TYPE STRING,
SORT TYPE STRING,
STATUS TYPE STRING,
STABK TYPE STRING,
EXTSTATNAM TYPE STRING,
STATUSICON TYPE STRING,
VERSTXT TYPE STRING,
REPSTATEXT TYPE STRING,
REPSTATTXT TYPE STRING,
DESCRTEXT TYPE STRING,
SORT_DIALOG TYPE STRING,
LINECOLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CVDDPIOT_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_CVDDPIOT_STR-MARKFLG sy-vline 
WA_CVDDPIOT_STR-SELEFLG sy-vline 
WA_CVDDPIOT_STR-LINENO sy-vline 
WA_CVDDPIOT_STR-LINEMOD sy-vline 
WA_CVDDPIOT_STR-CHCOFLG sy-vline 
WA_CVDDPIOT_STR-LOCKMOD sy-vline 
WA_CVDDPIOT_STR-INTRFLG sy-vline 
WA_CVDDPIOT_STR-MANDT sy-vline 
WA_CVDDPIOT_STR-RECN sy-vline 
WA_CVDDPIOT_STR-ACTN sy-vline 
WA_CVDDPIOT_STR-VALFR sy-vline 
WA_CVDDPIOT_STR-VALTO sy-vline 
WA_CVDDPIOT_STR-AENNR sy-vline 
WA_CVDDPIOT_STR-DELFLG sy-vline 
WA_CVDDPIOT_STR-PARKFLG sy-vline 
WA_CVDDPIOT_STR-CRDAT sy-vline 
WA_CVDDPIOT_STR-CRNAM sy-vline 
WA_CVDDPIOT_STR-UPDDAT sy-vline 
WA_CVDDPIOT_STR-UPDNAM sy-vline 
WA_CVDDPIOT_STR-SRSID sy-vline 
WA_CVDDPIOT_STR-OWNID sy-vline 
WA_CVDDPIOT_STR-RECNROOT sy-vline 
WA_CVDDPIOT_STR-OBJECT sy-vline 
WA_CVDDPIOT_STR-ATTRIB sy-vline 
WA_CVDDPIOT_STR-ORD sy-vline 
WA_CVDDPIOT_STR-VALUETYPE sy-vline 
WA_CVDDPIOT_STR-VALUE sy-vline 
WA_CVDDPIOT_STR-TDOBJECT sy-vline 
WA_CVDDPIOT_STR-TDID sy-vline 
WA_CVDDPIOT_STR-TDNAME sy-vline 
WA_CVDDPIOT_STR-TDSPRAS sy-vline 
WA_CVDDPIOT_STR-REPPARAFLG sy-vline 
WA_CVDDPIOT_STR-VALUECHFLG sy-vline 
WA_CVDDPIOT_STR-DEFPARAFLG sy-vline 
WA_CVDDPIOT_STR-APPLOBJKEYFLG sy-vline 
WA_CVDDPIOT_STR-LSYFKPA sy-vline 
WA_CVDDPIOT_STR-REQUIREDFLG sy-vline 
WA_CVDDPIOT_STR-SHOWONLYFLG sy-vline 
WA_CVDDPIOT_STR-DOKAR sy-vline 
WA_CVDDPIOT_STR-DOKNR sy-vline 
WA_CVDDPIOT_STR-DOKVR sy-vline 
WA_CVDDPIOT_STR-DOKTL sy-vline 
WA_CVDDPIOT_STR-PARHIER sy-vline 
WA_CVDDPIOT_STR-PAROBJ sy-vline 
WA_CVDDPIOT_STR-PAROBJKEY sy-vline 
WA_CVDDPIOT_STR-PAROBJPAR sy-vline 
WA_CVDDPIOT_STR-PAROBJPARKEY sy-vline 
WA_CVDDPIOT_STR-LENRECD sy-vline 
WA_CVDDPIOT_STR-FILEP sy-vline 
WA_CVDDPIOT_STR-LANGU sy-vline 
WA_CVDDPIOT_STR-RVLID sy-vline 
WA_CVDDPIOT_STR-SORT sy-vline 
WA_CVDDPIOT_STR-STATUS sy-vline 
WA_CVDDPIOT_STR-STABK sy-vline 
WA_CVDDPIOT_STR-EXTSTATNAM sy-vline 
WA_CVDDPIOT_STR-STATUSICON sy-vline 
WA_CVDDPIOT_STR-VERSTXT sy-vline 
WA_CVDDPIOT_STR-REPSTATEXT sy-vline 
WA_CVDDPIOT_STR-REPSTATTXT sy-vline 
WA_CVDDPIOT_STR-DESCRTEXT sy-vline 
WA_CVDDPIOT_STR-SORT_DIALOG sy-vline 
WA_CVDDPIOT_STR-LINECOLOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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