ABAP Select data from SAP table RECPOIUSER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECPOIUSER
*  INTO TABLE @DATA(IT_RECPOIUSER2).
*--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_RECPOIUSER INDEX 1 INTO DATA(WA_RECPOIUSER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECPOIUSER>-TITLEUSR = 1.
<RECPOIUSER>-TITLE_TUSR = 1.
<RECPOIUSER>-NAME_FIRSTUSR = 1.
<RECPOIUSER>-NAME_LASTUSR = 1.
<RECPOIUSER>-NAME2USR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECPOIUSER-NAMEMIDDLEUSR, sy-vline,
  WA_RECPOIUSER-NAME_LAST2USR, sy-vline,
  WA_RECPOIUSER-NAME_TEXTUSR, sy-vline,
  WA_RECPOIUSER-TITLE_ACA1USR, sy-vline,
  WA_RECPOIUSER-TITLE_ACA2USR, sy-vline,
  WA_RECPOIUSER-PREFIX1USR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECPOIUSER 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_RECPOIUSER 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_RECPOIUSER INTO WA_RECPOIUSER.


*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_RECPOIUSER_STR, 
TITLEUSR TYPE STRING,
TITLE_TUSR TYPE STRING,
NAME_FIRSTUSR TYPE STRING,
NAME_LASTUSR TYPE STRING,
NAME2USR TYPE STRING,
NAMEMIDDLEUSR TYPE STRING,
NAME_LAST2USR TYPE STRING,
NAME_TEXTUSR TYPE STRING,
TITLE_ACA1USR TYPE STRING,
TITLE_ACA2USR TYPE STRING,
PREFIX1USR TYPE STRING,
PREFIX2USR TYPE STRING,
TITLE_SPPLUSR TYPE STRING,
NICKNAMEUSR TYPE STRING,
INITIALSUSR TYPE STRING,
PROFESSIONUSR TYPE STRING,
DEPARTMENTUSR TYPE STRING,
FUNCTIONUSR TYPE STRING,
BUILDINGUSR TYPE STRING,
FLOORUSR TYPE STRING,
ROOMNUMBERUSR TYPE STRING,
ID_CODEUSR TYPE STRING,
TEL_NUMBERUSR TYPE STRING,
TEL_EXTENSUSR TYPE STRING,
FAX_NUMBERUSR TYPE STRING,
FAX_EXTENSUSR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECPOIUSER_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_RECPOIUSER_STR-TITLEUSR sy-vline 
WA_RECPOIUSER_STR-TITLE_TUSR sy-vline 
WA_RECPOIUSER_STR-NAME_FIRSTUSR sy-vline 
WA_RECPOIUSER_STR-NAME_LASTUSR sy-vline 
WA_RECPOIUSER_STR-NAME2USR sy-vline 
WA_RECPOIUSER_STR-NAMEMIDDLEUSR sy-vline 
WA_RECPOIUSER_STR-NAME_LAST2USR sy-vline 
WA_RECPOIUSER_STR-NAME_TEXTUSR sy-vline 
WA_RECPOIUSER_STR-TITLE_ACA1USR sy-vline 
WA_RECPOIUSER_STR-TITLE_ACA2USR sy-vline 
WA_RECPOIUSER_STR-PREFIX1USR sy-vline 
WA_RECPOIUSER_STR-PREFIX2USR sy-vline 
WA_RECPOIUSER_STR-TITLE_SPPLUSR sy-vline 
WA_RECPOIUSER_STR-NICKNAMEUSR sy-vline 
WA_RECPOIUSER_STR-INITIALSUSR sy-vline 
WA_RECPOIUSER_STR-PROFESSIONUSR sy-vline 
WA_RECPOIUSER_STR-DEPARTMENTUSR sy-vline 
WA_RECPOIUSER_STR-FUNCTIONUSR sy-vline 
WA_RECPOIUSER_STR-BUILDINGUSR sy-vline 
WA_RECPOIUSER_STR-FLOORUSR sy-vline 
WA_RECPOIUSER_STR-ROOMNUMBERUSR sy-vline 
WA_RECPOIUSER_STR-ID_CODEUSR sy-vline 
WA_RECPOIUSER_STR-TEL_NUMBERUSR sy-vline 
WA_RECPOIUSER_STR-TEL_EXTENSUSR sy-vline 
WA_RECPOIUSER_STR-FAX_NUMBERUSR sy-vline 
WA_RECPOIUSER_STR-FAX_EXTENSUSR sy-vline      INTO ld_text SEPARATED BY SPACE.

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