ABAP Select data from SAP table CONTROL_WBS_OVR_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CONTROL_WBS_OVR_ST
*  INTO TABLE @DATA(IT_CONTROL_WBS_OVR_ST2).
*--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_CONTROL_WBS_OVR_ST INDEX 1 INTO DATA(WA_CONTROL_WBS_OVR_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CONTROL_WBS_OVR_ST>-WBS_ELEMENT = 1.
<CONTROL_WBS_OVR_ST>-LEVEL = 1.
<CONTROL_WBS_OVR_ST>-DESCRIPTION_WBS = 1.
<CONTROL_WBS_OVR_ST>-OBJNR = 1.
<CONTROL_WBS_OVR_ST>-PSPHI_WBS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CONTROL_WBS_OVR_ST-ERNAM_WBS, sy-vline,
  WA_CONTROL_WBS_OVR_ST-ERDAT_WBS, sy-vline,
  WA_CONTROL_WBS_OVR_ST-AENAM_WBS, sy-vline,
  WA_CONTROL_WBS_OVR_ST-AEDAT_WBS, sy-vline,
  WA_CONTROL_WBS_OVR_ST-PRART_WBS, sy-vline,
  WA_CONTROL_WBS_OVR_ST-PLAKZ_WBS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CONTROL_WBS_OVR_ST 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_CONTROL_WBS_OVR_ST 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_CONTROL_WBS_OVR_ST INTO WA_CONTROL_WBS_OVR_ST.


*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 KONPD, internal->external for field PSPHI_WBS
CALL FUNCTION 'CONVERSION_EXIT_KONPD_OUTPUT'
  EXPORTING
    input =                      WA_CONTROL_WBS_OVR_ST-PSPHI_WBS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CONTROL_WBS_OVR_ST-PSPHI_WBS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit SCOPE, internal->external for field SCOPE_WBS
CALL FUNCTION 'CONVERSION_EXIT_SCOPE_OUTPUT'
  EXPORTING
    input =                      WA_CONTROL_WBS_OVR_ST-SCOPE_WBS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CONTROL_WBS_OVR_ST-SCOPE_WBS.
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_CONTROL_WBS_OVR_ST_STR, 
WBS_ELEMENT TYPE STRING,
LEVEL TYPE STRING,
DESCRIPTION_WBS TYPE STRING,
OBJNR TYPE STRING,
PSPHI_WBS TYPE STRING,
ERNAM_WBS TYPE STRING,
ERDAT_WBS TYPE STRING,
AENAM_WBS TYPE STRING,
AEDAT_WBS TYPE STRING,
PRART_WBS TYPE STRING,
PLAKZ_WBS TYPE STRING,
BELKZ_WBS TYPE STRING,
FAKKZ_WBS TYPE STRING,
KALSM_WBS TYPE STRING,
ZSCHL_WBS TYPE STRING,
ABGSL_WBS TYPE STRING,
PSPRI_WBS TYPE STRING,
CLASF_WBS TYPE STRING,
XSTAT_WBS TYPE STRING,
ZSCHM_WBS TYPE STRING,
IMPRF_WBS TYPE STRING,
PLINT_WBS TYPE STRING,
IZWEK_WBS TYPE STRING,
ISIZE_WBS TYPE STRING,
IUMKZ_WBS TYPE STRING,
ADPSP_WBS TYPE STRING,
RFIPPNT_WBS TYPE STRING,
GRPKZ_WBS TYPE STRING,
SCOPE_WBS TYPE STRING,
TXJCD_WBS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CONTROL_WBS_OVR_ST_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_CONTROL_WBS_OVR_ST_STR-WBS_ELEMENT sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-LEVEL sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-DESCRIPTION_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-OBJNR sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-PSPHI_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-ERNAM_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-ERDAT_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-AENAM_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-AEDAT_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-PRART_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-PLAKZ_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-BELKZ_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-FAKKZ_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-KALSM_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-ZSCHL_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-ABGSL_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-PSPRI_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-CLASF_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-XSTAT_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-ZSCHM_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-IMPRF_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-PLINT_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-IZWEK_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-ISIZE_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-IUMKZ_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-ADPSP_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-RFIPPNT_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-GRPKZ_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-SCOPE_WBS sy-vline 
WA_CONTROL_WBS_OVR_ST_STR-TXJCD_WBS sy-vline      INTO ld_text SEPARATED BY SPACE.

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