ABAP Select data from SAP table RCRWORKCENTER_UPDATE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCRWORKCENTER_UPDATE
*  INTO TABLE @DATA(IT_RCRWORKCENTER_UPDATE2).
*--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_RCRWORKCENTER_UPDATE INDEX 1 INTO DATA(WA_RCRWORKCENTER_UPDATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCRWORKCENTER_UPDATE>-UKZ_CRCA = 1.
<RCRWORKCENTER_UPDATE>-UKZ_CRCO = 1.
<RCRWORKCENTER_UPDATE>-UKZ_CRHD = 1.
<RCRWORKCENTER_UPDATE>-UKZ_CRTX = 1.
<RCRWORKCENTER_UPDATE>-UKZ_BDE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCRWORKCENTER_UPDATE-UKZ_LGORT, sy-vline,
  WA_RCRWORKCENTER_UPDATE-XCRCA, sy-vline,
  WA_RCRWORKCENTER_UPDATE-XCRCO, sy-vline,
  WA_RCRWORKCENTER_UPDATE-XCRHD, sy-vline,
  WA_RCRWORKCENTER_UPDATE-XCRTX, sy-vline,
  WA_RCRWORKCENTER_UPDATE-YCRCA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCRWORKCENTER_UPDATE 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_RCRWORKCENTER_UPDATE 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_RCRWORKCENTER_UPDATE INTO WA_RCRWORKCENTER_UPDATE.


*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_RCRWORKCENTER_UPDATE_STR, 
UKZ_CRCA TYPE STRING,
UKZ_CRCO TYPE STRING,
UKZ_CRHD TYPE STRING,
UKZ_CRTX TYPE STRING,
UKZ_BDE TYPE STRING,
UKZ_LGORT TYPE STRING,
XCRCA TYPE STRING,
XCRCO TYPE STRING,
XCRHD TYPE STRING,
XCRTX TYPE STRING,
YCRCA TYPE STRING,
YCRCO TYPE STRING,
YCRHD TYPE STRING,
YCRTX TYPE STRING,
YBDE TYPE STRING,
XBDE TYPE STRING,
XT001L TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCRWORKCENTER_UPDATE_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_RCRWORKCENTER_UPDATE_STR-UKZ_CRCA sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-UKZ_CRCO sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-UKZ_CRHD sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-UKZ_CRTX sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-UKZ_BDE sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-UKZ_LGORT sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-XCRCA sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-XCRCO sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-XCRHD sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-XCRTX sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-YCRCA sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-YCRCO sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-YCRHD sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-YCRTX sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-YBDE sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-XBDE sy-vline 
WA_RCRWORKCENTER_UPDATE_STR-XT001L sy-vline      INTO ld_text SEPARATED BY SPACE.

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