ABAP Select data from SAP table ICSTWTASGDOPITVH 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 ICSTWTASGDOPITVH 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 ICSTWTASGDOPITVH. 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 ICSTWTASGDOPITVH 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_ICSTWTASGDOPITVH TYPE STANDARD TABLE OF ICSTWTASGDOPITVH,
      WA_ICSTWTASGDOPITVH TYPE ICSTWTASGDOPITVH,
      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: <ICSTWTASGDOPITVH> TYPE ICSTWTASGDOPITVH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICSTWTASGDOPITVH
*  INTO TABLE @DATA(IT_ICSTWTASGDOPITVH2).
*--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_ICSTWTASGDOPITVH INDEX 1 INTO DATA(WA_ICSTWTASGDOPITVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICSTWTASGDOPITVH>-MANDT = 1.
<ICSTWTASGDOPITVH>-CUSTOMER = 1.
<ICSTWTASGDOPITVH>-COMPANYCODE = 1.
<ICSTWTASGDOPITVH>-CUSTOMERNAME = 1.
<ICSTWTASGDOPITVH>-CUSTOMERFULLNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICSTWTASGDOPITVH-CUSTOMERACCOUNTGROUP, sy-vline,
  WA_ICSTWTASGDOPITVH-CUSTOMERCLASSIFICATION, sy-vline,
  WA_ICSTWTASGDOPITVH-STREETNAME, sy-vline,
  WA_ICSTWTASGDOPITVH-CITYNAME, sy-vline,
  WA_ICSTWTASGDOPITVH-POSTALCODE, sy-vline,
  WA_ICSTWTASGDOPITVH-COUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICSTWTASGDOPITVH 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_ICSTWTASGDOPITVH 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_ICSTWTASGDOPITVH INTO WA_ICSTWTASGDOPITVH.


*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 CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICSTWTASGDOPITVH-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICSTWTASGDOPITVH-CUSTOMER.
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_ICSTWTASGDOPITVH_STR, 
MANDT TYPE STRING,
CUSTOMER TYPE STRING,
COMPANYCODE TYPE STRING,
CUSTOMERNAME TYPE STRING,
CUSTOMERFULLNAME TYPE STRING,
CUSTOMERACCOUNTGROUP TYPE STRING,
CUSTOMERCLASSIFICATION TYPE STRING,
STREETNAME TYPE STRING,
CITYNAME TYPE STRING,
POSTALCODE TYPE STRING,
COUNTRY TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
CUSTOMERFINSAUTHORIZATIONGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICSTWTASGDOPITVH_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_ICSTWTASGDOPITVH_STR-MANDT sy-vline 
WA_ICSTWTASGDOPITVH_STR-CUSTOMER sy-vline 
WA_ICSTWTASGDOPITVH_STR-COMPANYCODE sy-vline 
WA_ICSTWTASGDOPITVH_STR-CUSTOMERNAME sy-vline 
WA_ICSTWTASGDOPITVH_STR-CUSTOMERFULLNAME sy-vline 
WA_ICSTWTASGDOPITVH_STR-CUSTOMERACCOUNTGROUP sy-vline 
WA_ICSTWTASGDOPITVH_STR-CUSTOMERCLASSIFICATION sy-vline 
WA_ICSTWTASGDOPITVH_STR-STREETNAME sy-vline 
WA_ICSTWTASGDOPITVH_STR-CITYNAME sy-vline 
WA_ICSTWTASGDOPITVH_STR-POSTALCODE sy-vline 
WA_ICSTWTASGDOPITVH_STR-COUNTRY sy-vline 
WA_ICSTWTASGDOPITVH_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_ICSTWTASGDOPITVH_STR-AUTHORIZATIONGROUP sy-vline 
WA_ICSTWTASGDOPITVH_STR-CUSTOMERFINSAUTHORIZATIONGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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