ABAP Select data from SAP table USS_STAKEHOLDER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USS_STAKEHOLDER
*  INTO TABLE @DATA(IT_USS_STAKEHOLDER2).
*--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_USS_STAKEHOLDER INDEX 1 INTO DATA(WA_USS_STAKEHOLDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USS_STAKEHOLDER>-MANDT = 1.
<USS_STAKEHOLDER>-SRM_PARTNER = 1.
<USS_STAKEHOLDER>-SRM_POSIT = 1.
<USS_STAKEHOLDER>-FIN_CENTER = 1.
<USS_STAKEHOLDER>-SYS_STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USS_STAKEHOLDER-OBJTYPE, sy-vline,
  WA_USS_STAKEHOLDER-CLASS, sy-vline,
  WA_USS_STAKEHOLDER-OBJID, sy-vline,
  WA_USS_STAKEHOLDER-CRUSR, sy-vline,
  WA_USS_STAKEHOLDER-CRDAT, sy-vline,
  WA_USS_STAKEHOLDER-CRTIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_USS_STAKEHOLDER 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_USS_STAKEHOLDER 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_USS_STAKEHOLDER INTO WA_USS_STAKEHOLDER.


*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 SRM_PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USS_STAKEHOLDER-SRM_PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USS_STAKEHOLDER-SRM_PARTNER.
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_USS_STAKEHOLDER_STR, 
MANDT TYPE STRING,
SRM_PARTNER TYPE STRING,
SRM_POSIT TYPE STRING,
FIN_CENTER TYPE STRING,
SYS_STATUS TYPE STRING,
OBJTYPE TYPE STRING,
CLASS TYPE STRING,
OBJID TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USS_STAKEHOLDER_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_USS_STAKEHOLDER_STR-MANDT sy-vline 
WA_USS_STAKEHOLDER_STR-SRM_PARTNER sy-vline 
WA_USS_STAKEHOLDER_STR-SRM_POSIT sy-vline 
WA_USS_STAKEHOLDER_STR-FIN_CENTER sy-vline 
WA_USS_STAKEHOLDER_STR-SYS_STATUS sy-vline 
WA_USS_STAKEHOLDER_STR-OBJTYPE sy-vline 
WA_USS_STAKEHOLDER_STR-CLASS sy-vline 
WA_USS_STAKEHOLDER_STR-OBJID sy-vline 
WA_USS_STAKEHOLDER_STR-CRUSR sy-vline 
WA_USS_STAKEHOLDER_STR-CRDAT sy-vline 
WA_USS_STAKEHOLDER_STR-CRTIM sy-vline 
WA_USS_STAKEHOLDER_STR-CHUSR sy-vline 
WA_USS_STAKEHOLDER_STR-CHDAT sy-vline 
WA_USS_STAKEHOLDER_STR-CHTIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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