ABAP Select data from SAP table ISADL_VOC_SO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISADL_VOC_SO
*  INTO TABLE @DATA(IT_ISADL_VOC_SO2).
*--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_ISADL_VOC_SO INDEX 1 INTO DATA(WA_ISADL_VOC_SO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISADL_VOC_SO>-MANDT = 1.
<ISADL_VOC_SO>-NODE_KEY = 1.
<ISADL_VOC_SO>-SALESORDERID = 1.
<ISADL_VOC_SO>-CREATEDBY = 1.
<ISADL_VOC_SO>-CREATEDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISADL_VOC_SO-CHANGEDBY, sy-vline,
  WA_ISADL_VOC_SO-CHANGEDAT, sy-vline,
  WA_ISADL_VOC_SO-BUSINESSPARTNERGUID, sy-vline,
  WA_ISADL_VOC_SO-CURRENCYCODE, sy-vline,
  WA_ISADL_VOC_SO-GROSSAMOUNT, sy-vline,
  WA_ISADL_VOC_SO-NETAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISADL_VOC_SO 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_ISADL_VOC_SO 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_ISADL_VOC_SO INTO WA_ISADL_VOC_SO.


*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 SALESORDERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISADL_VOC_SO-SALESORDERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISADL_VOC_SO-SALESORDERID.
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_ISADL_VOC_SO_STR, 
MANDT TYPE STRING,
NODE_KEY TYPE STRING,
SALESORDERID TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDAT TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDAT TYPE STRING,
BUSINESSPARTNERGUID TYPE STRING,
CURRENCYCODE TYPE STRING,
GROSSAMOUNT TYPE STRING,
NETAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
LIFECYCLESTATUS TYPE STRING,
BILLINGSTATUS TYPE STRING,
DELIVERYSTATUS TYPE STRING,
OPPORTUNITYID TYPE STRING,
OVERALLSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISADL_VOC_SO_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_ISADL_VOC_SO_STR-MANDT sy-vline 
WA_ISADL_VOC_SO_STR-NODE_KEY sy-vline 
WA_ISADL_VOC_SO_STR-SALESORDERID sy-vline 
WA_ISADL_VOC_SO_STR-CREATEDBY sy-vline 
WA_ISADL_VOC_SO_STR-CREATEDAT sy-vline 
WA_ISADL_VOC_SO_STR-CHANGEDBY sy-vline 
WA_ISADL_VOC_SO_STR-CHANGEDAT sy-vline 
WA_ISADL_VOC_SO_STR-BUSINESSPARTNERGUID sy-vline 
WA_ISADL_VOC_SO_STR-CURRENCYCODE sy-vline 
WA_ISADL_VOC_SO_STR-GROSSAMOUNT sy-vline 
WA_ISADL_VOC_SO_STR-NETAMOUNT sy-vline 
WA_ISADL_VOC_SO_STR-TAXAMOUNT sy-vline 
WA_ISADL_VOC_SO_STR-LIFECYCLESTATUS sy-vline 
WA_ISADL_VOC_SO_STR-BILLINGSTATUS sy-vline 
WA_ISADL_VOC_SO_STR-DELIVERYSTATUS sy-vline 
WA_ISADL_VOC_SO_STR-OPPORTUNITYID sy-vline 
WA_ISADL_VOC_SO_STR-OVERALLSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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