ABAP Select data from SAP table OIH_PURCHASE_DATA_CROSSEXCISE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIH_PURCHASE_DATA_CROSSEXCISE
*  INTO TABLE @DATA(IT_OIH_PURCHASE_DATA_CROSSEXCISE2).
*--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_OIH_PURCHASE_DATA_CROSSEXCISE INDEX 1 INTO DATA(WA_OIH_PURCHASE_DATA_CROSSEXCISE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIH_PURCHASE_DATA_CROSSEXCISE>-BELNR = 1.
<OIH_PURCHASE_DATA_CROSSEXCISE>-GJAHR = 1.
<OIH_PURCHASE_DATA_CROSSEXCISE>-BUKRS = 1.
<OIH_PURCHASE_DATA_CROSSEXCISE>-VBELN = 1.
<OIH_PURCHASE_DATA_CROSSEXCISE>-POSN2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIH_PURCHASE_DATA_CROSSEXCISE-LIFNR, sy-vline,
  WA_OIH_PURCHASE_DATA_CROSSEXCISE-BSCHL, sy-vline,
  WA_OIH_PURCHASE_DATA_CROSSEXCISE-KOART, sy-vline,
  WA_OIH_PURCHASE_DATA_CROSSEXCISE-WRBTR, sy-vline,
  WA_OIH_PURCHASE_DATA_CROSSEXCISE-PSWSL, sy-vline,
  WA_OIH_PURCHASE_DATA_CROSSEXCISE-HKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIH_PURCHASE_DATA_CROSSEXCISE 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_OIH_PURCHASE_DATA_CROSSEXCISE 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_OIH_PURCHASE_DATA_CROSSEXCISE INTO WA_OIH_PURCHASE_DATA_CROSSEXCISE.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIH_PURCHASE_DATA_CROSSEXCISE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_PURCHASE_DATA_CROSSEXCISE-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIH_PURCHASE_DATA_CROSSEXCISE-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_PURCHASE_DATA_CROSSEXCISE-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field BILL_DOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIH_PURCHASE_DATA_CROSSEXCISE-BILL_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIH_PURCHASE_DATA_CROSSEXCISE-BILL_DOC.
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_OIH_PURCHASE_DATA_CROSSEXCISE_STR, 
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUKRS TYPE STRING,
VBELN TYPE STRING,
POSN2 TYPE STRING,
LIFNR TYPE STRING,
BSCHL TYPE STRING,
KOART TYPE STRING,
WRBTR TYPE STRING,
PSWSL TYPE STRING,
HKONT TYPE STRING,
KTOSL TYPE STRING,
MBLNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
PRCTR TYPE STRING,
NETWR TYPE STRING,
SKONT TYPE STRING,
SKBUKRS TYPE STRING,
PRD_KONT TYPE STRING,
PRD_BSCH TYPE STRING,
BILL_DOC TYPE STRING,
ZUONR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIH_PURCHASE_DATA_CROSSEXCISE_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_OIH_PURCHASE_DATA_CROSSEXCISE_STR-BELNR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-GJAHR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-BUKRS sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-VBELN sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-POSN2 sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-LIFNR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-BSCHL sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-KOART sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-WRBTR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-PSWSL sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-HKONT sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-KTOSL sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-MBLNR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-MATNR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-WERKS sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-PRCTR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-NETWR sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-SKONT sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-SKBUKRS sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-PRD_KONT sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-PRD_BSCH sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-BILL_DOC sy-vline 
WA_OIH_PURCHASE_DATA_CROSSEXCISE_STR-ZUONR sy-vline      INTO ld_text SEPARATED BY SPACE.

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