ABAP Select data from SAP table OIUCI_DETAIL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUCI_DETAIL
*  INTO TABLE @DATA(IT_OIUCI_DETAIL2).
*--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_OIUCI_DETAIL INDEX 1 INTO DATA(WA_OIUCI_DETAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUCI_DETAIL>-MANDT = 1.
<OIUCI_DETAIL>-REMITTER = 1.
<OIUCI_DETAIL>-REMITTER_SEQ = 1.
<OIUCI_DETAIL>-CHECK_NUMBER = 1.
<OIUCI_DETAIL>-LINE_NUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUCI_DETAIL-GROUP_NUMBER, sy-vline,
  WA_OIUCI_DETAIL-LINE_STATUS, sy-vline,
  WA_OIUCI_DETAIL-SUSP_NOTE, sy-vline,
  WA_OIUCI_DETAIL-REMITTER_PROP, sy-vline,
  WA_OIUCI_DETAIL-REMITTER_PRODUCT, sy-vline,
  WA_OIUCI_DETAIL-NET_AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUCI_DETAIL 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_OIUCI_DETAIL 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_OIUCI_DETAIL INTO WA_OIUCI_DETAIL.


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

*Conversion exit ALPHA, internal->external for field REMITTER_SEQ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUCI_DETAIL-REMITTER_SEQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUCI_DETAIL-REMITTER_SEQ.
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_OIUCI_DETAIL_STR, 
MANDT TYPE STRING,
REMITTER TYPE STRING,
REMITTER_SEQ TYPE STRING,
CHECK_NUMBER TYPE STRING,
LINE_NUMBER TYPE STRING,
GROUP_NUMBER TYPE STRING,
LINE_STATUS TYPE STRING,
SUSP_NOTE TYPE STRING,
REMITTER_PROP TYPE STRING,
REMITTER_PRODUCT TYPE STRING,
NET_AMOUNT TYPE STRING,
SALES_DATE_FROM TYPE STRING,
FIELD05 TYPE STRING,
FIELD06 TYPE STRING,
FIELD07 TYPE STRING,
FIELD08 TYPE STRING,
FIELD09 TYPE STRING,
FIELD10 TYPE STRING,
FIELD11 TYPE STRING,
FIELD12 TYPE STRING,
FIELD13 TYPE STRING,
FIELD14 TYPE STRING,
FIELD15 TYPE STRING,
FIELD16 TYPE STRING,
FIELD17 TYPE STRING,
FIELD18 TYPE STRING,
FIELD19 TYPE STRING,
FIELD20 TYPE STRING,
FIELD21 TYPE STRING,
FIELD22 TYPE STRING,
FIELD23 TYPE STRING,
FIELD24 TYPE STRING,
FIELD25 TYPE STRING,
FIELD26 TYPE STRING,
FIELD27 TYPE STRING,
FIELD28 TYPE STRING,
FIELD29 TYPE STRING,
FIELD30 TYPE STRING,
FIELD31 TYPE STRING,
FIELD32 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUCI_DETAIL_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_OIUCI_DETAIL_STR-MANDT sy-vline 
WA_OIUCI_DETAIL_STR-REMITTER sy-vline 
WA_OIUCI_DETAIL_STR-REMITTER_SEQ sy-vline 
WA_OIUCI_DETAIL_STR-CHECK_NUMBER sy-vline 
WA_OIUCI_DETAIL_STR-LINE_NUMBER sy-vline 
WA_OIUCI_DETAIL_STR-GROUP_NUMBER sy-vline 
WA_OIUCI_DETAIL_STR-LINE_STATUS sy-vline 
WA_OIUCI_DETAIL_STR-SUSP_NOTE sy-vline 
WA_OIUCI_DETAIL_STR-REMITTER_PROP sy-vline 
WA_OIUCI_DETAIL_STR-REMITTER_PRODUCT sy-vline 
WA_OIUCI_DETAIL_STR-NET_AMOUNT sy-vline 
WA_OIUCI_DETAIL_STR-SALES_DATE_FROM sy-vline 
WA_OIUCI_DETAIL_STR-FIELD05 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD06 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD07 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD08 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD09 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD10 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD11 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD12 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD13 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD14 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD15 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD16 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD17 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD18 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD19 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD20 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD21 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD22 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD23 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD24 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD25 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD26 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD27 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD28 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD29 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD30 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD31 sy-vline 
WA_OIUCI_DETAIL_STR-FIELD32 sy-vline      INTO ld_text SEPARATED BY SPACE.

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