ABAP Select data from SAP table APS_ORD_S_DOCUMENT_ROOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APS_ORD_S_DOCUMENT_ROOT
*  INTO TABLE @DATA(IT_APS_ORD_S_DOCUMENT_ROOT2).
*--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_APS_ORD_S_DOCUMENT_ROOT INDEX 1 INTO DATA(WA_APS_ORD_S_DOCUMENT_ROOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APS_ORD_S_DOCUMENT_ROOT>-$SCHEMA = 1.
<APS_ORD_S_DOCUMENT_ROOT>-OPENRESOURCEDISCOVERY = 1.
<APS_ORD_S_DOCUMENT_ROOT>-DESCRIPTION = 1.
<APS_ORD_S_DOCUMENT_ROOT>-DESCRIBEDSYSTEMINSTANCE = 1.
<APS_ORD_S_DOCUMENT_ROOT>-BASEURL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APS_ORD_S_DOCUMENT_ROOT-PROVIDERSYSTEMINSTANCE, sy-vline,
  WA_APS_ORD_S_DOCUMENT_ROOT-BASEURL, sy-vline,
  WA_APS_ORD_S_DOCUMENT_ROOT-PACKAGES, sy-vline,
  WA_APS_ORD_S_DOCUMENT_ROOT-CONSUMPTIONBUNDLES, sy-vline,
  WA_APS_ORD_S_DOCUMENT_ROOT-PRODUCTS, sy-vline,
  WA_APS_ORD_S_DOCUMENT_ROOT-APIRESOURCES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APS_ORD_S_DOCUMENT_ROOT 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_APS_ORD_S_DOCUMENT_ROOT 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_APS_ORD_S_DOCUMENT_ROOT INTO WA_APS_ORD_S_DOCUMENT_ROOT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_APS_ORD_S_DOCUMENT_ROOT_STR, 
$SCHEMA TYPE STRING,
OPENRESOURCEDISCOVERY TYPE STRING,
DESCRIPTION TYPE STRING,
DESCRIBEDSYSTEMINSTANCE TYPE STRING,
BASEURL TYPE STRING,
PROVIDERSYSTEMINSTANCE TYPE STRING,
BASEURL TYPE STRING,
PACKAGES TYPE STRING,
CONSUMPTIONBUNDLES TYPE STRING,
PRODUCTS TYPE STRING,
APIRESOURCES TYPE STRING,
EVENTRESOURCES TYPE STRING,
TOMBSTONES TYPE STRING,
VENDORS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APS_ORD_S_DOCUMENT_ROOT_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_APS_ORD_S_DOCUMENT_ROOT_STR-$SCHEMA sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-OPENRESOURCEDISCOVERY sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-DESCRIPTION sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-DESCRIBEDSYSTEMINSTANCE sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-BASEURL sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-PROVIDERSYSTEMINSTANCE sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-BASEURL sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-PACKAGES sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-CONSUMPTIONBUNDLES sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-PRODUCTS sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-APIRESOURCES sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-EVENTRESOURCES sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-TOMBSTONES sy-vline 
WA_APS_ORD_S_DOCUMENT_ROOT_STR-VENDORS sy-vline      INTO ld_text SEPARATED BY SPACE.

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