ABAP Select data from SAP table ICURR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICURR
*  INTO TABLE @DATA(IT_ICURR2).
*--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_ICURR INDEX 1 INTO DATA(WA_ICURR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICURR>-DMBTR = 1.
<ICURR>-WRBTR = 1.
<ICURR>-DMBE2 = 1.
<ICURR>-DMBE3 = 1.
<ICURR>-HWAER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICURR-WAERS, sy-vline,
  WA_ICURR-WWERT, sy-vline,
  WA_ICURR-KURSF, sy-vline,
  WA_ICURR-XINVR_CURV, sy-vline,
  WA_ICURR-BLDAT, sy-vline,
  WA_ICURR-BUDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICURR 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_ICURR 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_ICURR INTO WA_ICURR.


*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 AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-DMBE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS2
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-KURS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-KURS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURS3
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-KURS3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-KURS3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KURSX
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-KURSX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-KURSX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR2X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-KUR2X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-KUR2X.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRX, internal->external for field KUR3X
CALL FUNCTION 'CONVERSION_EXIT_EXCRX_OUTPUT'
  EXPORTING
    input =                      WA_ICURR-KUR3X
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICURR-KUR3X.
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_ICURR_STR, 
DMBTR TYPE STRING,
WRBTR TYPE STRING,
DMBE2 TYPE STRING,
DMBE3 TYPE STRING,
HWAER TYPE STRING,
WAERS TYPE STRING,
WWERT TYPE STRING,
KURSF TYPE STRING,
XINVR_CURV TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
BLART TYPE STRING,
KURST TYPE STRING,
KURS2 TYPE STRING,
KURS3 TYPE STRING,
BUKRS TYPE STRING,
BASW2 TYPE STRING,
BASW3 TYPE STRING,
KUTY2 TYPE STRING,
KUTY3 TYPE STRING,
HWAE2 TYPE STRING,
HWAE3 TYPE STRING,
UMRD2 TYPE STRING,
UMRD3 TYPE STRING,
KURSX TYPE STRING,
KUR2X TYPE STRING,
KUR3X TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICURR_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_ICURR_STR-DMBTR sy-vline 
WA_ICURR_STR-WRBTR sy-vline 
WA_ICURR_STR-DMBE2 sy-vline 
WA_ICURR_STR-DMBE3 sy-vline 
WA_ICURR_STR-HWAER sy-vline 
WA_ICURR_STR-WAERS sy-vline 
WA_ICURR_STR-WWERT sy-vline 
WA_ICURR_STR-KURSF sy-vline 
WA_ICURR_STR-XINVR_CURV sy-vline 
WA_ICURR_STR-BLDAT sy-vline 
WA_ICURR_STR-BUDAT sy-vline 
WA_ICURR_STR-BLART sy-vline 
WA_ICURR_STR-KURST sy-vline 
WA_ICURR_STR-KURS2 sy-vline 
WA_ICURR_STR-KURS3 sy-vline 
WA_ICURR_STR-BUKRS sy-vline 
WA_ICURR_STR-BASW2 sy-vline 
WA_ICURR_STR-BASW3 sy-vline 
WA_ICURR_STR-KUTY2 sy-vline 
WA_ICURR_STR-KUTY3 sy-vline 
WA_ICURR_STR-HWAE2 sy-vline 
WA_ICURR_STR-HWAE3 sy-vline 
WA_ICURR_STR-UMRD2 sy-vline 
WA_ICURR_STR-UMRD3 sy-vline 
WA_ICURR_STR-KURSX sy-vline 
WA_ICURR_STR-KUR2X sy-vline 
WA_ICURR_STR-KUR3X sy-vline      INTO ld_text SEPARATED BY SPACE.

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