ABAP Select data from SAP table SIAG_S_USER_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIAG_S_USER_DATA
*  INTO TABLE @DATA(IT_SIAG_S_USER_DATA2).
*--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_SIAG_S_USER_DATA INDEX 1 INTO DATA(WA_SIAG_S_USER_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIAG_S_USER_DATA>-BNAME = 1.
<SIAG_S_USER_DATA>-F_NAME = 1.
<SIAG_S_USER_DATA>-L_NAME = 1.
<SIAG_S_USER_DATA>-EMAIL = 1.
<SIAG_S_USER_DATA>-TEL_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIAG_S_USER_DATA-EXTN, sy-vline,
  WA_SIAG_S_USER_DATA-DEPT, sy-vline,
  WA_SIAG_S_USER_DATA-CLASS, sy-vline,
  WA_SIAG_S_USER_DATA-MANAGER_ID, sy-vline,
  WA_SIAG_S_USER_DATA-INACTIVE, sy-vline,
  WA_SIAG_S_USER_DATA-LOCKED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIAG_S_USER_DATA 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_SIAG_S_USER_DATA 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_SIAG_S_USER_DATA INTO WA_SIAG_S_USER_DATA.


*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 SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_SIAG_S_USER_DATA-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIAG_S_USER_DATA-EMAIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit USTYP, internal->external for field USERTYPE
CALL FUNCTION 'CONVERSION_EXIT_USTYP_OUTPUT'
  EXPORTING
    input =                      WA_SIAG_S_USER_DATA-USERTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIAG_S_USER_DATA-USERTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAIL_HR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_SIAG_S_USER_DATA-EMAIL_HR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIAG_S_USER_DATA-EMAIL_HR.
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_SIAG_S_USER_DATA_STR, 
BNAME TYPE STRING,
F_NAME TYPE STRING,
L_NAME TYPE STRING,
EMAIL TYPE STRING,
TEL_NO TYPE STRING,
EXTN TYPE STRING,
DEPT TYPE STRING,
CLASS TYPE STRING,
MANAGER_ID TYPE STRING,
INACTIVE TYPE STRING,
LOCKED TYPE STRING,
USERTYPE TYPE STRING,
DELETED TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
PERNR TYPE STRING,
F_NAME_HR TYPE STRING,
L_NAME_HR TYPE STRING,
EMAIL_HR TYPE STRING,
ORG_UNIT TYPE STRING,
COMPANY TYPE STRING,
BUSINESS_UNIT TYPE STRING,
DIVISION TYPE STRING,
LOCATION TYPE STRING,
COST_CENTER TYPE STRING,
POSITION_ID TYPE STRING,
JOB TYPE STRING,
EMPLOYEE_TYPE TYPE STRING,
STATUS TYPE STRING,
UPDATEDON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIAG_S_USER_DATA_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_SIAG_S_USER_DATA_STR-BNAME sy-vline 
WA_SIAG_S_USER_DATA_STR-F_NAME sy-vline 
WA_SIAG_S_USER_DATA_STR-L_NAME sy-vline 
WA_SIAG_S_USER_DATA_STR-EMAIL sy-vline 
WA_SIAG_S_USER_DATA_STR-TEL_NO sy-vline 
WA_SIAG_S_USER_DATA_STR-EXTN sy-vline 
WA_SIAG_S_USER_DATA_STR-DEPT sy-vline 
WA_SIAG_S_USER_DATA_STR-CLASS sy-vline 
WA_SIAG_S_USER_DATA_STR-MANAGER_ID sy-vline 
WA_SIAG_S_USER_DATA_STR-INACTIVE sy-vline 
WA_SIAG_S_USER_DATA_STR-LOCKED sy-vline 
WA_SIAG_S_USER_DATA_STR-USERTYPE sy-vline 
WA_SIAG_S_USER_DATA_STR-DELETED sy-vline 
WA_SIAG_S_USER_DATA_STR-VALID_FROM sy-vline 
WA_SIAG_S_USER_DATA_STR-VALID_TO sy-vline 
WA_SIAG_S_USER_DATA_STR-PERNR sy-vline 
WA_SIAG_S_USER_DATA_STR-F_NAME_HR sy-vline 
WA_SIAG_S_USER_DATA_STR-L_NAME_HR sy-vline 
WA_SIAG_S_USER_DATA_STR-EMAIL_HR sy-vline 
WA_SIAG_S_USER_DATA_STR-ORG_UNIT sy-vline 
WA_SIAG_S_USER_DATA_STR-COMPANY sy-vline 
WA_SIAG_S_USER_DATA_STR-BUSINESS_UNIT sy-vline 
WA_SIAG_S_USER_DATA_STR-DIVISION sy-vline 
WA_SIAG_S_USER_DATA_STR-LOCATION sy-vline 
WA_SIAG_S_USER_DATA_STR-COST_CENTER sy-vline 
WA_SIAG_S_USER_DATA_STR-POSITION_ID sy-vline 
WA_SIAG_S_USER_DATA_STR-JOB sy-vline 
WA_SIAG_S_USER_DATA_STR-EMPLOYEE_TYPE sy-vline 
WA_SIAG_S_USER_DATA_STR-STATUS sy-vline 
WA_SIAG_S_USER_DATA_STR-UPDATEDON sy-vline      INTO ld_text SEPARATED BY SPACE.

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