ABAP Select data from SAP table REIS_POSTING_CC_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIS_POSTING_CC_ITEM
*  INTO TABLE @DATA(IT_REIS_POSTING_CC_ITEM2).
*--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_REIS_POSTING_CC_ITEM INDEX 1 INTO DATA(WA_REIS_POSTING_CC_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIS_POSTING_CC_ITEM>-BUZEI = 1.
<REIS_POSTING_CC_ITEM>-BSCHL = 1.
<REIS_POSTING_CC_ITEM>-UMSKZ = 1.
<REIS_POSTING_CC_ITEM>-MWSKZ = 1.
<REIS_POSTING_CC_ITEM>-SHKZG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIS_POSTING_CC_ITEM-SGTXT, sy-vline,
  WA_REIS_POSTING_CC_ITEM-HKONT, sy-vline,
  WA_REIS_POSTING_CC_ITEM-DMBTR, sy-vline,
  WA_REIS_POSTING_CC_ITEM-WRBTR, sy-vline,
  WA_REIS_POSTING_CC_ITEM-MENGE, sy-vline,
  WA_REIS_POSTING_CC_ITEM-MEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIS_POSTING_CC_ITEM 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_REIS_POSTING_CC_ITEM 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_REIS_POSTING_CC_ITEM INTO WA_REIS_POSTING_CC_ITEM.


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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_POSTING_CC_ITEM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_POSTING_CC_ITEM-MEINS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit REDAT, internal->external for field DPEREND
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_POSTING_CC_ITEM-DPEREND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_POSTING_CC_ITEM-DPEREND.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_POSTING_CC_ITEM-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_POSTING_CC_ITEM-LOGSYSTEM.
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_REIS_POSTING_CC_ITEM_STR, 
BUZEI TYPE STRING,
BSCHL TYPE STRING,
UMSKZ TYPE STRING,
MWSKZ TYPE STRING,
SHKZG TYPE STRING,
SGTXT TYPE STRING,
HKONT TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
HWAERS TYPE STRING,
WAERS TYPE STRING,
BRUTTO TYPE STRING,
MWSTS TYPE STRING,
WMWST TYPE STRING,
WBRUTTO TYPE STRING,
DESCRIPTION TYPE STRING,
KOSTL TYPE STRING,
CLEARED TYPE STRING,
AUGBL TYPE STRING,
IDENT TYPE STRING,
CREDITORNAME TYPE STRING,
SWENR TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
DPERBEG TYPE STRING,
DPEREND TYPE STRING,
DABRBEZ TYPE STRING,
BELNR TYPE STRING,
REFBN TYPE STRING,
AWORG TYPE STRING,
LOGSYSTEM TYPE STRING,
TXJCD TYPE STRING,
KOBEZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIS_POSTING_CC_ITEM_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_REIS_POSTING_CC_ITEM_STR-BUZEI sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-BSCHL sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-UMSKZ sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-MWSKZ sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-SHKZG sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-SGTXT sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-HKONT sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-DMBTR sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-WRBTR sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-MENGE sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-MEINS sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-HWAERS sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-WAERS sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-BRUTTO sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-MWSTS sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-WMWST sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-WBRUTTO sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-DESCRIPTION sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-KOSTL sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-CLEARED sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-AUGBL sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-IDENT sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-CREDITORNAME sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-SWENR sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-SNKSL sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-SEMPSL sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-DPERBEG sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-DPEREND sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-DABRBEZ sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-BELNR sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-REFBN sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-AWORG sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-LOGSYSTEM sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-TXJCD sy-vline 
WA_REIS_POSTING_CC_ITEM_STR-KOBEZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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