ABAP Select data from SAP table ICWBSCST_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICWBSCST_D
*  INTO TABLE @DATA(IT_ICWBSCST_D2).
*--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_ICWBSCST_D INDEX 1 INTO DATA(WA_ICWBSCST_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICWBSCST_D>-FISCVAR = 1.
<ICWBSCST_D>-FISCPER = 1.
<ICWBSCST_D>-KOKRS = 1.
<ICWBSCST_D>-PSPID = 1.
<ICWBSCST_D>-POSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICWBSCST_D-WRTTP, sy-vline,
  WA_ICWBSCST_D-HRKFT, sy-vline,
  WA_ICWBSCST_D-VTYPE, sy-vline,
  WA_ICWBSCST_D-VTDETAIL, sy-vline,
  WA_ICWBSCST_D-VTSTAT, sy-vline,
  WA_ICWBSCST_D-VERSN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICWBSCST_D 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_ICWBSCST_D 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_ICWBSCST_D INTO WA_ICWBSCST_D.


*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 PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_ICWBSCST_D-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICWBSCST_D-FISCPER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit AC152, internal->external for field SWKPP
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ICWBSCST_D-SWKPP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICWBSCST_D-SWKPP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field SWG
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ICWBSCST_D-SWG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICWBSCST_D-SWG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ICWBSCST_D-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICWBSCST_D-MEINH.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit BEKNZ, internal->external for field BEKNZ
CALL FUNCTION 'CONVERSION_EXIT_BEKNZ_OUTPUT'
  EXPORTING
    input =                      WA_ICWBSCST_D-BEKNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICWBSCST_D-BEKNZ.
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_ICWBSCST_D_STR, 
FISCVAR TYPE STRING,
FISCPER TYPE STRING,
KOKRS TYPE STRING,
PSPID TYPE STRING,
POSID TYPE STRING,
WRTTP TYPE STRING,
HRKFT TYPE STRING,
VTYPE TYPE STRING,
VTDETAIL TYPE STRING,
VTSTAT TYPE STRING,
VERSN TYPE STRING,
KSTAR TYPE STRING,
SEKNZ TYPE STRING,
RSPOBART TYPE STRING,
RSPAROBVAL TYPE STRING,
VALUTYP TYPE STRING,
MEASTYPE TYPE STRING,
SWKPP TYPE STRING,
SWG TYPE STRING,
SMEG TYPE STRING,
WAERS TYPE STRING,
CURTYPE TYPE STRING,
MEINH TYPE STRING,
GEBER TYPE STRING,
PGEBER TYPE STRING,
FKBER TYPE STRING,
PFKBER TYPE STRING,
GRANT_NBR TYPE STRING,
PGRANT_NBR TYPE STRING,
FIKRS TYPE STRING,
BUDGET_PD TYPE STRING,
PBUDGET_PD TYPE STRING,
GUID TYPE STRING,
CPR_GUID TYPE STRING,
OBJNR TYPE STRING,
VRGNG TYPE STRING,
VBUND TYPE STRING,
PARGB TYPE STRING,
BEKNZ TYPE STRING,
TWAER TYPE STRING,
PAROB TYPE STRING,
USPOB TYPE STRING,
TRGKZ TYPE STRING,
TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICWBSCST_D_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_ICWBSCST_D_STR-FISCVAR sy-vline 
WA_ICWBSCST_D_STR-FISCPER sy-vline 
WA_ICWBSCST_D_STR-KOKRS sy-vline 
WA_ICWBSCST_D_STR-PSPID sy-vline 
WA_ICWBSCST_D_STR-POSID sy-vline 
WA_ICWBSCST_D_STR-WRTTP sy-vline 
WA_ICWBSCST_D_STR-HRKFT sy-vline 
WA_ICWBSCST_D_STR-VTYPE sy-vline 
WA_ICWBSCST_D_STR-VTDETAIL sy-vline 
WA_ICWBSCST_D_STR-VTSTAT sy-vline 
WA_ICWBSCST_D_STR-VERSN sy-vline 
WA_ICWBSCST_D_STR-KSTAR sy-vline 
WA_ICWBSCST_D_STR-SEKNZ sy-vline 
WA_ICWBSCST_D_STR-RSPOBART sy-vline 
WA_ICWBSCST_D_STR-RSPAROBVAL sy-vline 
WA_ICWBSCST_D_STR-VALUTYP sy-vline 
WA_ICWBSCST_D_STR-MEASTYPE sy-vline 
WA_ICWBSCST_D_STR-SWKPP sy-vline 
WA_ICWBSCST_D_STR-SWG sy-vline 
WA_ICWBSCST_D_STR-SMEG sy-vline 
WA_ICWBSCST_D_STR-WAERS sy-vline 
WA_ICWBSCST_D_STR-CURTYPE sy-vline 
WA_ICWBSCST_D_STR-MEINH sy-vline 
WA_ICWBSCST_D_STR-GEBER sy-vline 
WA_ICWBSCST_D_STR-PGEBER sy-vline 
WA_ICWBSCST_D_STR-FKBER sy-vline 
WA_ICWBSCST_D_STR-PFKBER sy-vline 
WA_ICWBSCST_D_STR-GRANT_NBR sy-vline 
WA_ICWBSCST_D_STR-PGRANT_NBR sy-vline 
WA_ICWBSCST_D_STR-FIKRS sy-vline 
WA_ICWBSCST_D_STR-BUDGET_PD sy-vline 
WA_ICWBSCST_D_STR-PBUDGET_PD sy-vline 
WA_ICWBSCST_D_STR-GUID sy-vline 
WA_ICWBSCST_D_STR-CPR_GUID sy-vline 
WA_ICWBSCST_D_STR-OBJNR sy-vline 
WA_ICWBSCST_D_STR-VRGNG sy-vline 
WA_ICWBSCST_D_STR-VBUND sy-vline 
WA_ICWBSCST_D_STR-PARGB sy-vline 
WA_ICWBSCST_D_STR-BEKNZ sy-vline 
WA_ICWBSCST_D_STR-TWAER sy-vline 
WA_ICWBSCST_D_STR-PAROB sy-vline 
WA_ICWBSCST_D_STR-USPOB sy-vline 
WA_ICWBSCST_D_STR-TRGKZ sy-vline 
WA_ICWBSCST_D_STR-TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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