ABAP Select data from SAP table RPCLSTAE7 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCLSTAE7 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 RPCLSTAE7. 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 RPCLSTAE7 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_RPCLSTAE7 TYPE STANDARD TABLE OF RPCLSTAE7,
      WA_RPCLSTAE7 TYPE RPCLSTAE7,
      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: <RPCLSTAE7> TYPE RPCLSTAE7.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCLSTAE7.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCLSTAE7
  INTO TABLE IT_RPCLSTAE7.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCLSTAE7
*  INTO TABLE @DATA(IT_RPCLSTAE72).
*--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_RPCLSTAE7 INDEX 1 INTO DATA(WA_RPCLSTAE72).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCLSTAE7 ASSIGNING <RPCLSTAE7>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCLSTAE7>-OBJPS = 1.
<RPCLSTAE7>-ZUORD = 1.
<RPCLSTAE7>-PRITY = 1.
<RPCLSTAE7>-SKENN = 1.
<RPCLSTAE7>-SBETR = 1.

ENDLOOP.

LOOP AT IT_RPCLSTAE7 INTO WA_RPCLSTAE7.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCLSTAE7-SPROZ, sy-vline,
  WA_RPCLSTAE7-KKENN, sy-vline,
  WA_RPCLSTAE7-KBETR, sy-vline,
  WA_RPCLSTAE7-KPROZ, sy-vline,
  WA_RPCLSTAE7-UKENN, sy-vline,
  WA_RPCLSTAE7-UBETR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCLSTAE7 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_RPCLSTAE7 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_RPCLSTAE7 INTO WA_RPCLSTAE7.


*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_RPCLSTAE7_STR, 
OBJPS TYPE STRING,
ZUORD TYPE STRING,
PRITY TYPE STRING,
SKENN TYPE STRING,
SBETR TYPE STRING,
SPROZ TYPE STRING,
KKENN TYPE STRING,
KBETR TYPE STRING,
KPROZ TYPE STRING,
UKENN TYPE STRING,
UBETR TYPE STRING,
UPROZ TYPE STRING,
GKENN TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCLSTAE7_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_RPCLSTAE7_STR-OBJPS sy-vline 
WA_RPCLSTAE7_STR-ZUORD sy-vline 
WA_RPCLSTAE7_STR-PRITY sy-vline 
WA_RPCLSTAE7_STR-SKENN sy-vline 
WA_RPCLSTAE7_STR-SBETR sy-vline 
WA_RPCLSTAE7_STR-SPROZ sy-vline 
WA_RPCLSTAE7_STR-KKENN sy-vline 
WA_RPCLSTAE7_STR-KBETR sy-vline 
WA_RPCLSTAE7_STR-KPROZ sy-vline 
WA_RPCLSTAE7_STR-UKENN sy-vline 
WA_RPCLSTAE7_STR-UBETR sy-vline 
WA_RPCLSTAE7_STR-UPROZ sy-vline 
WA_RPCLSTAE7_STR-GKENN sy-vline 
WA_RPCLSTAE7_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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