ABAP Select data from SAP table RPCOBQBDAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCOBQBDAT
*  INTO TABLE @DATA(IT_RPCOBQBDAT2).
*--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_RPCOBQBDAT INDEX 1 INTO DATA(WA_RPCOBQBDAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCOBQBDAT>-PERNR = 1.
<RPCOBQBDAT>-DSUBT = 1.
<RPCOBQBDAT>-DOBJP = 1.
<RPCOBQBDAT>-BAREA = 1.
<RPCOBQBDAT>-BENGR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCOBQBDAT-BSTAT, sy-vline,
  WA_RPCOBQBDAT-COBST, sy-vline,
  WA_RPCOBQBDAT-CSTAT, sy-vline,
  WA_RPCOBQBDAT-BEGCO, sy-vline,
  WA_RPCOBQBDAT-ENDCO, sy-vline,
  WA_RPCOBQBDAT-BEGDS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCOBQBDAT 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_RPCOBQBDAT 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_RPCOBQBDAT INTO WA_RPCOBQBDAT.


*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_RPCOBQBDAT_STR, 
PERNR TYPE STRING,
DSUBT TYPE STRING,
DOBJP TYPE STRING,
BAREA TYPE STRING,
BENGR TYPE STRING,
BSTAT TYPE STRING,
COBST TYPE STRING,
CSTAT TYPE STRING,
BEGCO TYPE STRING,
ENDCO TYPE STRING,
BEGDS TYPE STRING,
SRVDT TYPE STRING,
REPLY TYPE STRING,
RESTA TYPE STRING,
EVTYP TYPE STRING,
EVDAT TYPE STRING,
SECEV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCOBQBDAT_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_RPCOBQBDAT_STR-PERNR sy-vline 
WA_RPCOBQBDAT_STR-DSUBT sy-vline 
WA_RPCOBQBDAT_STR-DOBJP sy-vline 
WA_RPCOBQBDAT_STR-BAREA sy-vline 
WA_RPCOBQBDAT_STR-BENGR sy-vline 
WA_RPCOBQBDAT_STR-BSTAT sy-vline 
WA_RPCOBQBDAT_STR-COBST sy-vline 
WA_RPCOBQBDAT_STR-CSTAT sy-vline 
WA_RPCOBQBDAT_STR-BEGCO sy-vline 
WA_RPCOBQBDAT_STR-ENDCO sy-vline 
WA_RPCOBQBDAT_STR-BEGDS sy-vline 
WA_RPCOBQBDAT_STR-SRVDT sy-vline 
WA_RPCOBQBDAT_STR-REPLY sy-vline 
WA_RPCOBQBDAT_STR-RESTA sy-vline 
WA_RPCOBQBDAT_STR-EVTYP sy-vline 
WA_RPCOBQBDAT_STR-EVDAT sy-vline 
WA_RPCOBQBDAT_STR-SECEV sy-vline      INTO ld_text SEPARATED BY SPACE.

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