ABAP Select data from SAP table RPCSAFI0_INF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCSAFI0_INF 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 RPCSAFI0_INF. 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 RPCSAFI0_INF 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_RPCSAFI0_INF TYPE STANDARD TABLE OF RPCSAFI0_INF,
      WA_RPCSAFI0_INF TYPE RPCSAFI0_INF,
      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: <RPCSAFI0_INF> TYPE RPCSAFI0_INF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCSAFI0_INF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCSAFI0_INF
  INTO TABLE IT_RPCSAFI0_INF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCSAFI0_INF
*  INTO TABLE @DATA(IT_RPCSAFI0_INF2).
*--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_RPCSAFI0_INF INDEX 1 INTO DATA(WA_RPCSAFI0_INF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCSAFI0_INF ASSIGNING <RPCSAFI0_INF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCSAFI0_INF>-WERKS = 1.
<RPCSAFI0_INF>-BTRTL = 1.
<RPCSAFI0_INF>-SNAME = 1.
<RPCSAFI0_INF>-PERNR = 1.
<RPCSAFI0_INF>-DATA_SCADENZA = 1.

ENDLOOP.

LOOP AT IT_RPCSAFI0_INF INTO WA_RPCSAFI0_INF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCSAFI0_INF-DATA_POSTALLARME, sy-vline,
  WA_RPCSAFI0_INF-PROPRIETARIO, sy-vline,
  WA_RPCSAFI0_INF-NOME_DOCUMENTO, sy-vline,
  WA_RPCSAFI0_INF-PERIODO, sy-vline,
  WA_RPCSAFI0_INF-VLINE, sy-vline,
  WA_RPCSAFI0_INF-DATUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCSAFI0_INF 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_RPCSAFI0_INF 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_RPCSAFI0_INF INTO WA_RPCSAFI0_INF.


*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_RPCSAFI0_INF_STR, 
WERKS TYPE STRING,
BTRTL TYPE STRING,
SNAME TYPE STRING,
PERNR TYPE STRING,
DATA_SCADENZA TYPE STRING,
DATA_POSTALLARME TYPE STRING,
PROPRIETARIO TYPE STRING,
NOME_DOCUMENTO TYPE STRING,
PERIODO TYPE STRING,
VLINE TYPE STRING,
DATUM TYPE STRING,
PNPXABKR TYPE STRING,
PNPABKRS_LOW TYPE STRING,
PNPBTRTL_HIGH TYPE STRING,
PNPBTRTL_LOW TYPE STRING,
PNPWERKS_HIGH TYPE STRING,
PNPWERKS_LOW TYPE STRING,
TESTO_ERRORE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCSAFI0_INF_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_RPCSAFI0_INF_STR-WERKS sy-vline 
WA_RPCSAFI0_INF_STR-BTRTL sy-vline 
WA_RPCSAFI0_INF_STR-SNAME sy-vline 
WA_RPCSAFI0_INF_STR-PERNR sy-vline 
WA_RPCSAFI0_INF_STR-DATA_SCADENZA sy-vline 
WA_RPCSAFI0_INF_STR-DATA_POSTALLARME sy-vline 
WA_RPCSAFI0_INF_STR-PROPRIETARIO sy-vline 
WA_RPCSAFI0_INF_STR-NOME_DOCUMENTO sy-vline 
WA_RPCSAFI0_INF_STR-PERIODO sy-vline 
WA_RPCSAFI0_INF_STR-VLINE sy-vline 
WA_RPCSAFI0_INF_STR-DATUM sy-vline 
WA_RPCSAFI0_INF_STR-PNPXABKR sy-vline 
WA_RPCSAFI0_INF_STR-PNPABKRS_LOW sy-vline 
WA_RPCSAFI0_INF_STR-PNPBTRTL_HIGH sy-vline 
WA_RPCSAFI0_INF_STR-PNPBTRTL_LOW sy-vline 
WA_RPCSAFI0_INF_STR-PNPWERKS_HIGH sy-vline 
WA_RPCSAFI0_INF_STR-PNPWERKS_LOW sy-vline 
WA_RPCSAFI0_INF_STR-TESTO_ERRORE sy-vline      INTO ld_text SEPARATED BY SPACE.

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