ABAP Select data from SAP table OIK_ISI_SD_DOCUMENT_COPY_ONE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIK_ISI_SD_DOCUMENT_COPY_ONE
*  INTO TABLE @DATA(IT_OIK_ISI_SD_DOCUMENT_COPY_ONE2).
*--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_OIK_ISI_SD_DOCUMENT_COPY_ONE INDEX 1 INTO DATA(WA_OIK_ISI_SD_DOCUMENT_COPY_ONE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIK_ISI_SD_DOCUMENT_COPY_ONE>-OIKIMPORT = 1.
<OIK_ISI_SD_DOCUMENT_COPY_ONE>-APPLIC = 1.
<OIK_ISI_SD_DOCUMENT_COPY_ONE>-FUMODE = 1.
<OIK_ISI_SD_DOCUMENT_COPY_ONE>-LIDFUNC = 1.
<OIK_ISI_SD_DOCUMENT_COPY_ONE>-LIDFUNCNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-VBELN, sy-vline,
  WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-AUART, sy-vline,
  WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-LISOF, sy-vline,
  WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-KDAUF, sy-vline,
  WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-LIEFN, sy-vline,
  WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-SHNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIK_ISI_SD_DOCUMENT_COPY_ONE 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_OIK_ISI_SD_DOCUMENT_COPY_ONE 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_OIK_ISI_SD_DOCUMENT_COPY_ONE INTO WA_OIK_ISI_SD_DOCUMENT_COPY_ONE.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-VBELN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIK_ISI_SD_DOCUMENT_COPY_ONE-GJAHR.
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_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR, 
OIKIMPORT TYPE STRING,
APPLIC TYPE STRING,
FUMODE TYPE STRING,
LIDFUNC TYPE STRING,
LIDFUNCNAM TYPE STRING,
VBELN TYPE STRING,
AUART TYPE STRING,
LISOF TYPE STRING,
KDAUF TYPE STRING,
LIEFN TYPE STRING,
SHNUM TYPE STRING,
RSNUM TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
EBELN TYPE STRING,
IBLNR TYPE STRING,
GJAHR TYPE STRING,
LOEIN_LIPS TYPE STRING,
LOEIN_EKPO TYPE STRING,
STLTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_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_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-OIKIMPORT sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-APPLIC sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-FUMODE sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-LIDFUNC sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-LIDFUNCNAM sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-VBELN sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-AUART sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-LISOF sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-KDAUF sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-LIEFN sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-SHNUM sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-RSNUM sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-MBLNR sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-MJAHR sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-EBELN sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-IBLNR sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-GJAHR sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-LOEIN_LIPS sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-LOEIN_EKPO sy-vline 
WA_OIK_ISI_SD_DOCUMENT_COPY_ONE_STR-STLTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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