ABAP Select data from SAP table /CPD/PWS_RCBS_COND_FIELD_ADMIN 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_FIELD_ADMIN 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_FIELD_ADMIN. 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_FIELD_ADMIN 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_FIELD_ADMIN TYPE STANDARD TABLE OF /CPD/PWS_RCBS_COND_FIELD_ADMIN,
      WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN TYPE /CPD/PWS_RCBS_COND_FIELD_ADMIN,
      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_FIELD_ADMIN> TYPE /CPD/PWS_RCBS_COND_FIELD_ADMIN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CPD/PWS_RCBS_COND_FIELD_ADMIN
*  INTO TABLE @DATA(IT_/CPD/PWS_RCBS_COND_FIELD_ADMIN2).
*--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_FIELD_ADMIN INDEX 1 INTO DATA(WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CPD/PWS_RCBS_COND_FIELD_ADMIN>-TABNAME = 1.
</CPD/PWS_RCBS_COND_FIELD_ADMIN>-KOLNR = 1.
</CPD/PWS_RCBS_COND_FIELD_ADMIN>-KSCHL = 1.
</CPD/PWS_RCBS_COND_FIELD_ADMIN>-KNUMH = 1.
</CPD/PWS_RCBS_COND_FIELD_ADMIN>-KOPOS = 1.

ENDLOOP.

LOOP AT IT_/CPD/PWS_RCBS_COND_FIELD_ADMIN INTO WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN.
*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_FIELD_ADMIN-KBSTAT, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN-KRECH, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN-CHANGE_TYPE, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN-IS_LOCKED, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN-LOCKED_BY, sy-vline,
  WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN-CREATE_RECORD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN 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_FIELD_ADMIN 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_FIELD_ADMIN INTO WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN.


*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 KOTAB, internal->external for field TABNAME
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN-TABNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN-TABNAME.
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_FIELD_ADMIN_STR, 
TABNAME TYPE STRING,
KOLNR TYPE STRING,
KSCHL TYPE STRING,
KNUMH TYPE STRING,
KOPOS TYPE STRING,
KBSTAT TYPE STRING,
KRECH TYPE STRING,
CHANGE_TYPE TYPE STRING,
IS_LOCKED 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_FIELD_ADMIN_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_FIELD_ADMIN_STR-TABNAME sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-KOLNR sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-KSCHL sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-KNUMH sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-KOPOS sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-KBSTAT sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-KRECH sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-CHANGE_TYPE sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-IS_LOCKED sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-LOCKED_BY sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-CREATE_RECORD sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_STR-CHANGE_RECORD sy-vline 
WA_/CPD/PWS_RCBS_COND_FIELD_ADMIN_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.