ABAP Select data from SAP table REYC_EXPENSE_ITEM_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REYC_EXPENSE_ITEM_L
*  INTO TABLE @DATA(IT_REYC_EXPENSE_ITEM_L2).
*--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_REYC_EXPENSE_ITEM_L INDEX 1 INTO DATA(WA_REYC_EXPENSE_ITEM_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REYC_EXPENSE_ITEM_L>-MANDT = 1.
<REYC_EXPENSE_ITEM_L>-EXPLINEGUID = 1.
<REYC_EXPENSE_ITEM_L>-OBJNR = 1.
<REYC_EXPENSE_ITEM_L>-REFBK = 1.
<REYC_EXPENSE_ITEM_L>-REFBN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REYC_EXPENSE_ITEM_L-AWORG, sy-vline,
  WA_REYC_EXPENSE_ITEM_L-AWKEY, sy-vline,
  WA_REYC_EXPENSE_ITEM_L-REFGJ, sy-vline,
  WA_REYC_EXPENSE_ITEM_L-REFBZ, sy-vline,
  WA_REYC_EXPENSE_ITEM_L-AWTYP, sy-vline,
  WA_REYC_EXPENSE_ITEM_L-LOGSYSTEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REYC_EXPENSE_ITEM_L 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_REYC_EXPENSE_ITEM_L 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_REYC_EXPENSE_ITEM_L INTO WA_REYC_EXPENSE_ITEM_L.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PGID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REYC_EXPENSE_ITEM_L-PGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REYC_EXPENSE_ITEM_L-PGID.
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_REYC_EXPENSE_ITEM_L_STR, 
MANDT TYPE STRING,
EXPLINEGUID TYPE STRING,
OBJNR TYPE STRING,
REFBK TYPE STRING,
REFBN TYPE STRING,
AWORG TYPE STRING,
AWKEY TYPE STRING,
REFGJ TYPE STRING,
REFBZ TYPE STRING,
AWTYP TYPE STRING,
LOGSYSTEM TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BUKRS TYPE STRING,
BUZEI TYPE STRING,
BSCHL TYPE STRING,
UMSKZ TYPE STRING,
MWSKZ TYPE STRING,
SHKZG TYPE STRING,
SGTXT TYPE STRING,
HKONT TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
DESCRIPTION TYPE STRING,
KOSTL TYPE STRING,
CLEARED TYPE STRING,
AUGBL TYPE STRING,
IDENT TYPE STRING,
CREDITORNAME TYPE STRING,
DABRBEZ TYPE STRING,
GJAHR TYPE STRING,
TXJCD TYPE STRING,
BLART TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
USNAM TYPE STRING,
TCODE TYPE STRING,
TXBHW TYPE STRING,
TXBFW TYPE STRING,
DATEOFSERVICE TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
GSBER TYPE STRING,
TAXISCALCULATED TYPE STRING,
EXPTYPE TYPE STRING,
PGOBJNR TYPE STRING,
SERVVALIDFROM TYPE STRING,
SERVVALIDTO TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
BRUTTO TYPE STRING,
HWAERS TYPE STRING,
WAERS TYPE STRING,
INTRENO TYPE STRING,
REVERSAL TYPE STRING,
SWENR TYPE STRING,
SEASONALITYKEY TYPE STRING,
ADJUSTMENT TYPE STRING,
AWREF_REV TYPE STRING,
PGID TYPE STRING,
XSEXP TYPE STRING,
OBJIDENT TYPE STRING,
NEWEXPITEM TYPE STRING,
ISSETTLED TYPE STRING,
CELLTAB TYPE STRING,
COLORTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REYC_EXPENSE_ITEM_L_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_REYC_EXPENSE_ITEM_L_STR-MANDT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-EXPLINEGUID sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-OBJNR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-REFBK sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-REFBN sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-AWORG sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-AWKEY sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-REFGJ sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-REFBZ sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-AWTYP sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-LOGSYSTEM sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-KOKRS sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BELNR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BUKRS sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BUZEI sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BSCHL sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-UMSKZ sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-MWSKZ sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-SHKZG sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-SGTXT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-HKONT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-MENGE sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-MEINS sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-DESCRIPTION sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-KOSTL sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-CLEARED sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-AUGBL sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-IDENT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-CREDITORNAME sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-DABRBEZ sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-GJAHR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-TXJCD sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BLART sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BUDAT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BLDAT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-USNAM sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-TCODE sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-TXBHW sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-TXBFW sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-DATEOFSERVICE sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-EBELN sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-EBELP sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-ZEKKN sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-WERKS sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-MATNR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-GSBER sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-TAXISCALCULATED sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-EXPTYPE sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-PGOBJNR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-SERVVALIDFROM sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-SERVVALIDTO sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-DMBTR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-WRBTR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-BRUTTO sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-HWAERS sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-WAERS sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-INTRENO sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-REVERSAL sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-SWENR sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-SEASONALITYKEY sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-ADJUSTMENT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-AWREF_REV sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-PGID sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-XSEXP sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-OBJIDENT sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-NEWEXPITEM sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-ISSETTLED sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-CELLTAB sy-vline 
WA_REYC_EXPENSE_ITEM_L_STR-COLORTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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