ABAP Select data from SAP table SMI_S_MULTIPLE_USERS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SMI_S_MULTIPLE_USERS
*  INTO TABLE @DATA(IT_SMI_S_MULTIPLE_USERS2).
*--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_SMI_S_MULTIPLE_USERS INDEX 1 INTO DATA(WA_SMI_S_MULTIPLE_USERS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SMI_S_MULTIPLE_USERS>-SOCIALMEDIACHANNEL = 1.
<SMI_S_MULTIPLE_USERS>-SOCIALUSER = 1.
<SMI_S_MULTIPLE_USERS>-SOCIALUSERPROFILELINK = 1.
<SMI_S_MULTIPLE_USERS>-SOCIALUSERACCOUNT = 1.
<SMI_S_MULTIPLE_USERS>-GENDERCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SMI_S_MULTIPLE_USERS-NUMBEROFSOCIALUSERCONTACTS, sy-vline,
  WA_SMI_S_MULTIPLE_USERS-SOCIALUSERINFLUENCESCOREVALUE, sy-vline,
  WA_SMI_S_MULTIPLE_USERS-CREATIONDATETIME, sy-vline,
  WA_SMI_S_MULTIPLE_USERS-LOCATIONNAME, sy-vline,
  WA_SMI_S_MULTIPLE_USERS-COUNTRYNAME, sy-vline,
  WA_SMI_S_MULTIPLE_USERS-SOCIALUSERNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SMI_S_MULTIPLE_USERS 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_SMI_S_MULTIPLE_USERS 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_SMI_S_MULTIPLE_USERS INTO WA_SMI_S_MULTIPLE_USERS.


*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_SMI_S_MULTIPLE_USERS_STR, 
SOCIALMEDIACHANNEL TYPE STRING,
SOCIALUSER TYPE STRING,
SOCIALUSERPROFILELINK TYPE STRING,
SOCIALUSERACCOUNT TYPE STRING,
GENDERCODE TYPE STRING,
NUMBEROFSOCIALUSERCONTACTS TYPE STRING,
SOCIALUSERINFLUENCESCOREVALUE TYPE STRING,
CREATIONDATETIME TYPE STRING,
LOCATIONNAME TYPE STRING,
COUNTRYNAME TYPE STRING,
SOCIALUSERNAME TYPE STRING,
SOCIALUSEREMAILADDRESS TYPE STRING,
SOCIALUSERIMAGELINK TYPE STRING,
SOCIALUSERTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SMI_S_MULTIPLE_USERS_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_SMI_S_MULTIPLE_USERS_STR-SOCIALMEDIACHANNEL sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSER sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSERPROFILELINK sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSERACCOUNT sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-GENDERCODE sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-NUMBEROFSOCIALUSERCONTACTS sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSERINFLUENCESCOREVALUE sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-CREATIONDATETIME sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-LOCATIONNAME sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-COUNTRYNAME sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSERNAME sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSEREMAILADDRESS sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSERIMAGELINK sy-vline 
WA_SMI_S_MULTIPLE_USERS_STR-SOCIALUSERTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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