ABAP Select data from SAP table /CPD/PWS_RCBS_COND_FIELDS_EXTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /CPD/PWS_RCBS_COND_FIELDS_EXTR 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 /CPD/PWS_RCBS_COND_FIELDS_EXTR. 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 /CPD/PWS_RCBS_COND_FIELDS_EXTR 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_/CPD/PWS_RCBS_COND_FIELDS_EXTR TYPE STANDARD TABLE OF /CPD/PWS_RCBS_COND_FIELDS_EXTR,
      WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR TYPE /CPD/PWS_RCBS_COND_FIELDS_EXTR,
      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: </CPD/PWS_RCBS_COND_FIELDS_EXTR> TYPE /CPD/PWS_RCBS_COND_FIELDS_EXTR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /CPD/PWS_RCBS_COND_FIELDS_EXTR
  INTO TABLE IT_/CPD/PWS_RCBS_COND_FIELDS_EXTR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CPD/PWS_RCBS_COND_FIELDS_EXTR
*  INTO TABLE @DATA(IT_/CPD/PWS_RCBS_COND_FIELDS_EXTR2).
*--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_/CPD/PWS_RCBS_COND_FIELDS_EXTR INDEX 1 INTO DATA(WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CPD/PWS_RCBS_COND_FIELDS_EXTR ASSIGNING </CPD/PWS_RCBS_COND_FIELDS_EXTR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CPD/PWS_RCBS_COND_FIELDS_EXTR>-STDRATE = 1.
</CPD/PWS_RCBS_COND_FIELDS_EXTR>-NEWRATE = 1.
</CPD/PWS_RCBS_COND_FIELDS_EXTR>-CALRATE = 1.
</CPD/PWS_RCBS_COND_FIELDS_EXTR>-TABNAME = 1.
</CPD/PWS_RCBS_COND_FIELDS_EXTR>-KOLNR = 1.

ENDLOOP.

LOOP AT IT_/CPD/PWS_RCBS_COND_FIELDS_EXTR INTO WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-POSNR, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-KSCHL, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-KONWA, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-KNUMH, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-RCLID, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-KPEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR 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_/CPD/PWS_RCBS_COND_FIELDS_EXTR 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_/CPD/PWS_RCBS_COND_FIELDS_EXTR INTO WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR-KMEIN.
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_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR, 
STDRATE TYPE STRING,
NEWRATE TYPE STRING,
CALRATE TYPE STRING,
TABNAME TYPE STRING,
KOLNR TYPE STRING,
POSNR TYPE STRING,
KSCHL TYPE STRING,
KONWA TYPE STRING,
KNUMH TYPE STRING,
RCLID TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
MSEHL TYPE STRING,
STATUS TYPE STRING,
CREATE TYPE STRING,
CHANGE TYPE STRING,
DISPLAY TYPE STRING,
KMENG TYPE STRING,
UPDT_STATUS TYPE STRING,
LOCK_STATUS TYPE STRING,
LOCKED_BY TYPE STRING,
CREATE_RECORD TYPE STRING,
CHANGE_RECORD TYPE STRING,
DISPLAY_RECORD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_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_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-STDRATE sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-NEWRATE sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-CALRATE sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-TABNAME sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-KOLNR sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-POSNR sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-KSCHL sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-KONWA sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-KNUMH sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-RCLID sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-KPEIN sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-KMEIN sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-MSEHL sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-STATUS sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-CREATE sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-CHANGE sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-DISPLAY sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-KMENG sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-UPDT_STATUS sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-LOCK_STATUS sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-LOCKED_BY sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-CREATE_RECORD sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-CHANGE_RECORD sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELDS_EXTR_STR-DISPLAY_RECORD sy-vline      INTO ld_text SEPARATED BY SPACE.

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