ABAP Select data from SAP table ISDOSA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISDOSA
*  INTO TABLE @DATA(IT_ISDOSA2).
*--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_ISDOSA INDEX 1 INTO DATA(WA_ISDOSA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISDOSA>-MANDT = 1.
<ISDOSA>-CUSTOMER = 1.
<ISDOSA>-SALESORGANIZATION = 1.
<ISDOSA>-DISTRIBUTIONCHANNEL = 1.
<ISDOSA>-ORGANIZATIONDIVISION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISDOSA-CUSTOMERGROUP, sy-vline,
  WA_ISDOSA-SALESDISTRICT, sy-vline,
  WA_ISDOSA-DELIVERYISBLOCKEDFORCUSTOMER, sy-vline,
  WA_ISDOSA-BILLINGISBLOCKEDFORCUSTOMER, sy-vline,
  WA_ISDOSA-SALESGROUP, sy-vline,
  WA_ISDOSA-SALESOFFICE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISDOSA 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_ISDOSA 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_ISDOSA INTO WA_ISDOSA.


*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_ISDOSA-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDOSA-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_ISDOSA_STR, 
MANDT TYPE STRING,
CUSTOMER TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
CUSTOMERGROUP TYPE STRING,
SALESDISTRICT TYPE STRING,
DELIVERYISBLOCKEDFORCUSTOMER TYPE STRING,
BILLINGISBLOCKEDFORCUSTOMER TYPE STRING,
SALESGROUP TYPE STRING,
SALESOFFICE TYPE STRING,
ADDITIONALCUSTOMERGROUP1 TYPE STRING,
ADDITIONALCUSTOMERGROUP2 TYPE STRING,
ADDITIONALCUSTOMERGROUP3 TYPE STRING,
ADDITIONALCUSTOMERGROUP4 TYPE STRING,
ADDITIONALCUSTOMERGROUP5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISDOSA_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_ISDOSA_STR-MANDT sy-vline 
WA_ISDOSA_STR-CUSTOMER sy-vline 
WA_ISDOSA_STR-SALESORGANIZATION sy-vline 
WA_ISDOSA_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ISDOSA_STR-ORGANIZATIONDIVISION sy-vline 
WA_ISDOSA_STR-CUSTOMERGROUP sy-vline 
WA_ISDOSA_STR-SALESDISTRICT sy-vline 
WA_ISDOSA_STR-DELIVERYISBLOCKEDFORCUSTOMER sy-vline 
WA_ISDOSA_STR-BILLINGISBLOCKEDFORCUSTOMER sy-vline 
WA_ISDOSA_STR-SALESGROUP sy-vline 
WA_ISDOSA_STR-SALESOFFICE sy-vline 
WA_ISDOSA_STR-ADDITIONALCUSTOMERGROUP1 sy-vline 
WA_ISDOSA_STR-ADDITIONALCUSTOMERGROUP2 sy-vline 
WA_ISDOSA_STR-ADDITIONALCUSTOMERGROUP3 sy-vline 
WA_ISDOSA_STR-ADDITIONALCUSTOMERGROUP4 sy-vline 
WA_ISDOSA_STR-ADDITIONALCUSTOMERGROUP5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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