ABAP Select data from SAP table IMPCUSTCLEARITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMPCUSTCLEARITEM
*  INTO TABLE @DATA(IT_IMPCUSTCLEARITEM2).
*--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_IMPCUSTCLEARITEM INDEX 1 INTO DATA(WA_IMPCUSTCLEARITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMPCUSTCLEARITEM>-MANDT = 1.
<IMPCUSTCLEARITEM>-SALESDOCUMENT = 1.
<IMPCUSTCLEARITEM>-SALESDOCUMENTITEM = 1.
<IMPCUSTCLEARITEM>-CLEARINGDATE = 1.
<IMPCUSTCLEARITEM>-CLEARINGACCOUNTINGDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMPCUSTCLEARITEM-ACCOUNTINGDOCUMENT, sy-vline,
  WA_IMPCUSTCLEARITEM-CURRENCY, sy-vline,
  WA_IMPCUSTCLEARITEM-REFERENCEDOCUMENT, sy-vline,
  WA_IMPCUSTCLEARITEM-PURCHASINGDOCUMENTAMOUNT, sy-vline,
  WA_IMPCUSTCLEARITEM-TAXAMOUNT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_IMPCUSTCLEARITEM 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_IMPCUSTCLEARITEM 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_IMPCUSTCLEARITEM INTO WA_IMPCUSTCLEARITEM.


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

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

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

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

*Conversion exit AU132, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IMPCUSTCLEARITEM-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMPCUSTCLEARITEM-TAXAMOUNT.
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_IMPCUSTCLEARITEM_STR, 
MANDT TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
CLEARINGDATE TYPE STRING,
CLEARINGACCOUNTINGDOCUMENT TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
CURRENCY TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMPCUSTCLEARITEM_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_IMPCUSTCLEARITEM_STR-MANDT sy-vline 
WA_IMPCUSTCLEARITEM_STR-SALESDOCUMENT sy-vline 
WA_IMPCUSTCLEARITEM_STR-SALESDOCUMENTITEM sy-vline 
WA_IMPCUSTCLEARITEM_STR-CLEARINGDATE sy-vline 
WA_IMPCUSTCLEARITEM_STR-CLEARINGACCOUNTINGDOCUMENT sy-vline 
WA_IMPCUSTCLEARITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IMPCUSTCLEARITEM_STR-CURRENCY sy-vline 
WA_IMPCUSTCLEARITEM_STR-REFERENCEDOCUMENT sy-vline 
WA_IMPCUSTCLEARITEM_STR-PURCHASINGDOCUMENTAMOUNT sy-vline 
WA_IMPCUSTCLEARITEM_STR-TAXAMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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