ABAP Select data from SAP table WEBINVOICEICOM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WEBINVOICEICOM
*  INTO TABLE @DATA(IT_WEBINVOICEICOM2).
*--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_WEBINVOICEICOM INDEX 1 INTO DATA(WA_WEBINVOICEICOM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WEBINVOICEICOM>-VBELN = 1.
<WEBINVOICEICOM>-POSNR = 1.
<WEBINVOICEICOM>-UEPOS = 1.
<WEBINVOICEICOM>-FKIMG = 1.
<WEBINVOICEICOM>-VRKME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WEBINVOICEICOM-VRKME_ISO, sy-vline,
  WA_WEBINVOICEICOM-NETWR, sy-vline,
  WA_WEBINVOICEICOM-VGBEL, sy-vline,
  WA_WEBINVOICEICOM-VGPOS, sy-vline,
  WA_WEBINVOICEICOM-VGTYP, sy-vline,
  WA_WEBINVOICEICOM-VGTYP_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WEBINVOICEICOM 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_WEBINVOICEICOM 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_WEBINVOICEICOM INTO WA_WEBINVOICEICOM.


*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_WEBINVOICEICOM-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WEBINVOICEICOM-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WEBINVOICEICOM-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WEBINVOICEICOM-VRKME.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WEBINVOICEICOM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WEBINVOICEICOM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_WEBINVOICEICOM-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WEBINVOICEICOM-EAN11.
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_WEBINVOICEICOM_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
UEPOS TYPE STRING,
FKIMG TYPE STRING,
VRKME TYPE STRING,
VRKME_ISO TYPE STRING,
NETWR TYPE STRING,
VGBEL TYPE STRING,
VGPOS TYPE STRING,
VGTYP TYPE STRING,
VGTYP_TEXT TYPE STRING,
AUBEL TYPE STRING,
AUPOS TYPE STRING,
AUREF TYPE STRING,
AUTYP TYPE STRING,
AUTYP_TEXT TYPE STRING,
MATNR TYPE STRING,
ARKTX TYPE STRING,
POSAR TYPE STRING,
POSAR_TEXT TYPE STRING,
PSTYV TYPE STRING,
PSTYV_TEXT TYPE STRING,
SPART TYPE STRING,
SPART_TEXT TYPE STRING,
WERKS TYPE STRING,
WERKS_TEXT TYPE STRING,
SKTOF TYPE STRING,
SKFBP TYPE STRING,
SHKZG TYPE STRING,
EAN11 TYPE STRING,
TXJCD TYPE STRING,
MWSBP TYPE STRING,
SGTXT TYPE STRING,
BRTWR TYPE STRING,
WAVWR TYPE STRING,
KZWI1 TYPE STRING,
KZWI2 TYPE STRING,
KZWI3 TYPE STRING,
KZWI4 TYPE STRING,
KZWI5 TYPE STRING,
KZWI6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WEBINVOICEICOM_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_WEBINVOICEICOM_STR-VBELN sy-vline 
WA_WEBINVOICEICOM_STR-POSNR sy-vline 
WA_WEBINVOICEICOM_STR-UEPOS sy-vline 
WA_WEBINVOICEICOM_STR-FKIMG sy-vline 
WA_WEBINVOICEICOM_STR-VRKME sy-vline 
WA_WEBINVOICEICOM_STR-VRKME_ISO sy-vline 
WA_WEBINVOICEICOM_STR-NETWR sy-vline 
WA_WEBINVOICEICOM_STR-VGBEL sy-vline 
WA_WEBINVOICEICOM_STR-VGPOS sy-vline 
WA_WEBINVOICEICOM_STR-VGTYP sy-vline 
WA_WEBINVOICEICOM_STR-VGTYP_TEXT sy-vline 
WA_WEBINVOICEICOM_STR-AUBEL sy-vline 
WA_WEBINVOICEICOM_STR-AUPOS sy-vline 
WA_WEBINVOICEICOM_STR-AUREF sy-vline 
WA_WEBINVOICEICOM_STR-AUTYP sy-vline 
WA_WEBINVOICEICOM_STR-AUTYP_TEXT sy-vline 
WA_WEBINVOICEICOM_STR-MATNR sy-vline 
WA_WEBINVOICEICOM_STR-ARKTX sy-vline 
WA_WEBINVOICEICOM_STR-POSAR sy-vline 
WA_WEBINVOICEICOM_STR-POSAR_TEXT sy-vline 
WA_WEBINVOICEICOM_STR-PSTYV sy-vline 
WA_WEBINVOICEICOM_STR-PSTYV_TEXT sy-vline 
WA_WEBINVOICEICOM_STR-SPART sy-vline 
WA_WEBINVOICEICOM_STR-SPART_TEXT sy-vline 
WA_WEBINVOICEICOM_STR-WERKS sy-vline 
WA_WEBINVOICEICOM_STR-WERKS_TEXT sy-vline 
WA_WEBINVOICEICOM_STR-SKTOF sy-vline 
WA_WEBINVOICEICOM_STR-SKFBP sy-vline 
WA_WEBINVOICEICOM_STR-SHKZG sy-vline 
WA_WEBINVOICEICOM_STR-EAN11 sy-vline 
WA_WEBINVOICEICOM_STR-TXJCD sy-vline 
WA_WEBINVOICEICOM_STR-MWSBP sy-vline 
WA_WEBINVOICEICOM_STR-SGTXT sy-vline 
WA_WEBINVOICEICOM_STR-BRTWR sy-vline 
WA_WEBINVOICEICOM_STR-WAVWR sy-vline 
WA_WEBINVOICEICOM_STR-KZWI1 sy-vline 
WA_WEBINVOICEICOM_STR-KZWI2 sy-vline 
WA_WEBINVOICEICOM_STR-KZWI3 sy-vline 
WA_WEBINVOICEICOM_STR-KZWI4 sy-vline 
WA_WEBINVOICEICOM_STR-KZWI5 sy-vline 
WA_WEBINVOICEICOM_STR-KZWI6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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