ABAP Select data from SAP table RHCP_CO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RHCP_CO
*  INTO TABLE @DATA(IT_RHCP_CO2).
*--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_RHCP_CO INDEX 1 INTO DATA(WA_RHCP_CO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RHCP_CO>-CO_AREA = 1.
<RHCP_CO>-OBJECT_INDEX = 1.
<RHCP_CO>-COSTCENTER = 1.
<RHCP_CO>-ACTTYPE = 1.
<RHCP_CO>-CO_BUSPROC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RHCP_CO-ORDERID, sy-vline,
  WA_RHCP_CO-WBS_ELEMENT, sy-vline,
  WA_RHCP_CO-COST_ELEM, sy-vline,
  WA_RHCP_CO-TRANS_CURRENCY_ISO, sy-vline,
  WA_RHCP_CO-TRANS_CURR, sy-vline,
  WA_RHCP_CO-FIX_VAL_PER01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RHCP_CO 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_RHCP_CO 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_RHCP_CO INTO WA_RHCP_CO.


*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.

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RHCP_CO-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RHCP_CO-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CO_BUSPROC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RHCP_CO-CO_BUSPROC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RHCP_CO-CO_BUSPROC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RHCP_CO-ORDERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RHCP_CO-ORDERID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RHCP_CO-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RHCP_CO-WBS_ELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COST_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RHCP_CO-COST_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RHCP_CO-COST_ELEM.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RHCP_CO_STR, 
CO_AREA TYPE STRING,
OBJECT_INDEX TYPE STRING,
COSTCENTER TYPE STRING,
ACTTYPE TYPE STRING,
CO_BUSPROC TYPE STRING,
ORDERID TYPE STRING,
WBS_ELEMENT TYPE STRING,
COST_ELEM TYPE STRING,
TRANS_CURRENCY_ISO TYPE STRING,
TRANS_CURR TYPE STRING,
FIX_VAL_PER01 TYPE STRING,
FIX_VAL_PER02 TYPE STRING,
FIX_VAL_PER03 TYPE STRING,
FIX_VAL_PER04 TYPE STRING,
FIX_VAL_PER05 TYPE STRING,
FIX_VAL_PER06 TYPE STRING,
FIX_VAL_PER07 TYPE STRING,
FIX_VAL_PER08 TYPE STRING,
FIX_VAL_PER09 TYPE STRING,
FIX_VAL_PER10 TYPE STRING,
FIX_VAL_PER11 TYPE STRING,
FIX_VAL_PER12 TYPE STRING,
FIX_VAL_PER13 TYPE STRING,
FIX_VAL_PER14 TYPE STRING,
FIX_VAL_PER15 TYPE STRING,
FIX_VAL_PER16 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RHCP_CO_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_RHCP_CO_STR-CO_AREA sy-vline 
WA_RHCP_CO_STR-OBJECT_INDEX sy-vline 
WA_RHCP_CO_STR-COSTCENTER sy-vline 
WA_RHCP_CO_STR-ACTTYPE sy-vline 
WA_RHCP_CO_STR-CO_BUSPROC sy-vline 
WA_RHCP_CO_STR-ORDERID sy-vline 
WA_RHCP_CO_STR-WBS_ELEMENT sy-vline 
WA_RHCP_CO_STR-COST_ELEM sy-vline 
WA_RHCP_CO_STR-TRANS_CURRENCY_ISO sy-vline 
WA_RHCP_CO_STR-TRANS_CURR sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER01 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER02 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER03 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER04 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER05 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER06 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER07 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER08 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER09 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER10 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER11 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER12 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER13 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER14 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER15 sy-vline 
WA_RHCP_CO_STR-FIX_VAL_PER16 sy-vline      INTO ld_text SEPARATED BY SPACE.

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