ABAP Select data from SAP table J_3RFGTD_ITEM_DETAILS_MAIN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RFGTD_ITEM_DETAILS_MAIN 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 J_3RFGTD_ITEM_DETAILS_MAIN. 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 J_3RFGTD_ITEM_DETAILS_MAIN 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_J_3RFGTD_ITEM_DETAILS_MAIN TYPE STANDARD TABLE OF J_3RFGTD_ITEM_DETAILS_MAIN,
      WA_J_3RFGTD_ITEM_DETAILS_MAIN TYPE J_3RFGTD_ITEM_DETAILS_MAIN,
      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: <J_3RFGTD_ITEM_DETAILS_MAIN> TYPE J_3RFGTD_ITEM_DETAILS_MAIN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RFGTD_ITEM_DETAILS_MAIN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RFGTD_ITEM_DETAILS_MAIN
  INTO TABLE IT_J_3RFGTD_ITEM_DETAILS_MAIN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RFGTD_ITEM_DETAILS_MAIN
*  INTO TABLE @DATA(IT_J_3RFGTD_ITEM_DETAILS_MAIN2).
*--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_J_3RFGTD_ITEM_DETAILS_MAIN INDEX 1 INTO DATA(WA_J_3RFGTD_ITEM_DETAILS_MAIN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RFGTD_ITEM_DETAILS_MAIN ASSIGNING <J_3RFGTD_ITEM_DETAILS_MAIN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RFGTD_ITEM_DETAILS_MAIN>-MANDT = 1.
<J_3RFGTD_ITEM_DETAILS_MAIN>-GTD_ID = 1.
<J_3RFGTD_ITEM_DETAILS_MAIN>-POSNR = 1.
<J_3RFGTD_ITEM_DETAILS_MAIN>-GTDPOS = 1.
<J_3RFGTD_ITEM_DETAILS_MAIN>-MATNR = 1.

ENDLOOP.

LOOP AT IT_J_3RFGTD_ITEM_DETAILS_MAIN INTO WA_J_3RFGTD_ITEM_DETAILS_MAIN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RFGTD_ITEM_DETAILS_MAIN-MENGE, sy-vline,
  WA_J_3RFGTD_ITEM_DETAILS_MAIN-MEINS, sy-vline,
  WA_J_3RFGTD_ITEM_DETAILS_MAIN-PMENGE, sy-vline,
  WA_J_3RFGTD_ITEM_DETAILS_MAIN-PMEINS, sy-vline,
  WA_J_3RFGTD_ITEM_DETAILS_MAIN-BRGEW, sy-vline,
  WA_J_3RFGTD_ITEM_DETAILS_MAIN-NTGEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RFGTD_ITEM_DETAILS_MAIN 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_J_3RFGTD_ITEM_DETAILS_MAIN 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_J_3RFGTD_ITEM_DETAILS_MAIN INTO WA_J_3RFGTD_ITEM_DETAILS_MAIN.


*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 GTD_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-GTD_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-GTD_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-PMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-PMEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDERNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-ORDERNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-ORDERNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INDELNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-INDELNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-INDELNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MMDOCNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-MMDOCNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-MMDOCNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MMDOCJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-MMDOCJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-MMDOCJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILLREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-BILLREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-BILLREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INCOMING_INVOICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-INCOMING_INVOICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-INCOMING_INVOICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field NETWR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-NETWR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-NETWR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field VAT_BASE
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-VAT_BASE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-VAT_BASE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field CALC_VAT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-CALC_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-CALC_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field ACT_CUST_VAT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-ACT_CUST_VAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-ACT_CUST_VAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field EXCISE_AM
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-EXCISE_AM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-EXCISE_AM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RFGTD_ITEM_DETAILS_MAIN-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RFGTD_ITEM_DETAILS_MAIN-LIFNR.
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_J_3RFGTD_ITEM_DETAILS_MAIN_STR, 
MANDT TYPE STRING,
GTD_ID TYPE STRING,
POSNR TYPE STRING,
GTDPOS TYPE STRING,
MATNR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
PMENGE TYPE STRING,
PMEINS TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
ORDERNUM TYPE STRING,
ORDERPOS TYPE STRING,
INDELNUM TYPE STRING,
INDELPOS TYPE STRING,
MMDOCNUM TYPE STRING,
MMDOCJAHR TYPE STRING,
MMDOCPOS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
BILLREF TYPE STRING,
INCOMING_INVOICE TYPE STRING,
EXCH_TYP TYPE STRING,
HERKL TYPE STRING,
STAWN TYPE STRING,
NETWR TYPE STRING,
CUSTOMS_COST TYPE STRING,
MWSKZ TYPE STRING,
VAT_BASE TYPE STRING,
CALC_DUTIES_AM TYPE STRING,
CALC_DUTIES_RATE TYPE STRING,
CALC_DUTIES_TYPE TYPE STRING,
CALC_VAT TYPE STRING,
ACT_CUST_DUTIES TYPE STRING,
ACT_CUST_VAT TYPE STRING,
EXCISE_AM TYPE STRING,
GTDTSTAMP TYPE STRING,
CREUSER TYPE STRING,
CHGTSTAMP TYPE STRING,
CHGUSER TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
FL_TRACKING TYPE STRING,
FEES_AM TYPE STRING,
ADDITIONAL_COST TYPE STRING,
BUKRS TYPE STRING,
CUSTOMS TYPE STRING,
GTDDATE TYPE STRING,
GTDNUMBER TYPE STRING,
GTDTYPE TYPE STRING,
LIFNR TYPE STRING,
MAKTX TYPE STRING,
STATE TYPE STRING,
CORR_COST TYPE STRING,
NO_REF TYPE STRING,
WAERS TYPE STRING,
LWAERS TYPE STRING,
LAND1 TYPE STRING,
TABIX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RFGTD_ITEM_DETAILS_MAIN_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_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MANDT sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-GTD_ID sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-POSNR sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-GTDPOS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MATNR sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MENGE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MEINS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-PMENGE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-PMEINS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-BRGEW sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-NTGEW sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-GEWEI sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-ORDERNUM sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-ORDERPOS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-INDELNUM sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-INDELPOS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MMDOCNUM sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MMDOCJAHR sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MMDOCPOS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-EBELN sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-EBELP sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-BILLREF sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-INCOMING_INVOICE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-EXCH_TYP sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-HERKL sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-STAWN sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-NETWR sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CUSTOMS_COST sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MWSKZ sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-VAT_BASE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CALC_DUTIES_AM sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CALC_DUTIES_RATE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CALC_DUTIES_TYPE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CALC_VAT sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-ACT_CUST_DUTIES sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-ACT_CUST_VAT sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-EXCISE_AM sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-GTDTSTAMP sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CREUSER sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CHGTSTAMP sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CHGUSER sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-UMREZ sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-UMREN sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-FL_TRACKING sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-FEES_AM sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-ADDITIONAL_COST sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-BUKRS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CUSTOMS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-GTDDATE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-GTDNUMBER sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-GTDTYPE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-LIFNR sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-MAKTX sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-STATE sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-CORR_COST sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-NO_REF sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-WAERS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-LWAERS sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-LAND1 sy-vline 
WA_J_3RFGTD_ITEM_DETAILS_MAIN_STR-TABIX sy-vline      INTO ld_text SEPARATED BY SPACE.

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