ABAP Select data from SAP table VECAMIOPRCI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VECAMIOPRCI
*  INTO TABLE @DATA(IT_VECAMIOPRCI2).
*--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_VECAMIOPRCI INDEX 1 INTO DATA(WA_VECAMIOPRCI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VECAMIOPRCI>-MANDT = 1.
<VECAMIOPRCI>-PRDOC = 1.
<VECAMIOPRCI>-ANLAGE = 1.
<VECAMIOPRCI>-PRGUID = 1.
<VECAMIOPRCI>-CRM_PRODUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VECAMIOPRCI-PRODID, sy-vline,
  WA_VECAMIOPRCI-STATUS, sy-vline,
  WA_VECAMIOPRCI-SPARTE, sy-vline,
  WA_VECAMIOPRCI-VERTRAG, sy-vline,
  WA_VECAMIOPRCI-XMOVEIN, sy-vline,
  WA_VECAMIOPRCI-XMOVEOUT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VECAMIOPRCI 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_VECAMIOPRCI 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_VECAMIOPRCI INTO WA_VECAMIOPRCI.


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

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

*Conversion exit ALPHA, internal->external for field VERTRAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VECAMIOPRCI-VERTRAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VECAMIOPRCI-VERTRAG.
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_VECAMIOPRCI_STR, 
MANDT TYPE STRING,
PRDOC TYPE STRING,
ANLAGE TYPE STRING,
PRGUID TYPE STRING,
CRM_PRODUCT TYPE STRING,
PRODID TYPE STRING,
STATUS TYPE STRING,
SPARTE TYPE STRING,
VERTRAG TYPE STRING,
XMOVEIN TYPE STRING,
XMOVEOUT TYPE STRING,
XMOVEOUTPRED TYPE STRING,
XBBPCREATE TYPE STRING,
ABSBETRW TYPE STRING,
WAERS TYPE STRING,
STARTYEAR TYPE STRING,
CHGRSN TYPE STRING,
SEC_TOT_AMOUNT TYPE STRING,
SEC_REASON TYPE STRING,
SECWAIVEREAS TYPE STRING,
SERVICEID TYPE STRING,
INVOICING_PARTY TYPE STRING,
SERVPROV_PAY TYPE STRING,
PYPLT TYPE STRING,
PYPLS TYPE STRING,
PYPLA TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VECAMIOPRCI_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_VECAMIOPRCI_STR-MANDT sy-vline 
WA_VECAMIOPRCI_STR-PRDOC sy-vline 
WA_VECAMIOPRCI_STR-ANLAGE sy-vline 
WA_VECAMIOPRCI_STR-PRGUID sy-vline 
WA_VECAMIOPRCI_STR-CRM_PRODUCT sy-vline 
WA_VECAMIOPRCI_STR-PRODID sy-vline 
WA_VECAMIOPRCI_STR-STATUS sy-vline 
WA_VECAMIOPRCI_STR-SPARTE sy-vline 
WA_VECAMIOPRCI_STR-VERTRAG sy-vline 
WA_VECAMIOPRCI_STR-XMOVEIN sy-vline 
WA_VECAMIOPRCI_STR-XMOVEOUT sy-vline 
WA_VECAMIOPRCI_STR-XMOVEOUTPRED sy-vline 
WA_VECAMIOPRCI_STR-XBBPCREATE sy-vline 
WA_VECAMIOPRCI_STR-ABSBETRW sy-vline 
WA_VECAMIOPRCI_STR-WAERS sy-vline 
WA_VECAMIOPRCI_STR-STARTYEAR sy-vline 
WA_VECAMIOPRCI_STR-CHGRSN sy-vline 
WA_VECAMIOPRCI_STR-SEC_TOT_AMOUNT sy-vline 
WA_VECAMIOPRCI_STR-SEC_REASON sy-vline 
WA_VECAMIOPRCI_STR-SECWAIVEREAS sy-vline 
WA_VECAMIOPRCI_STR-SERVICEID sy-vline 
WA_VECAMIOPRCI_STR-INVOICING_PARTY sy-vline 
WA_VECAMIOPRCI_STR-SERVPROV_PAY sy-vline 
WA_VECAMIOPRCI_STR-PYPLT sy-vline 
WA_VECAMIOPRCI_STR-PYPLS sy-vline 
WA_VECAMIOPRCI_STR-PYPLA sy-vline 
WA_VECAMIOPRCI_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.