ABAP Select data from SAP table J_1IEXCDETAIL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1IEXCDETAIL 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_1IEXCDETAIL. 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_1IEXCDETAIL 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_1IEXCDETAIL TYPE STANDARD TABLE OF J_1IEXCDETAIL,
      WA_J_1IEXCDETAIL TYPE J_1IEXCDETAIL,
      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_1IEXCDETAIL> TYPE J_1IEXCDETAIL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1IEXCDETAIL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1IEXCDETAIL
  INTO TABLE IT_J_1IEXCDETAIL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1IEXCDETAIL
*  INTO TABLE @DATA(IT_J_1IEXCDETAIL2).
*--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_1IEXCDETAIL INDEX 1 INTO DATA(WA_J_1IEXCDETAIL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1IEXCDETAIL ASSIGNING <J_1IEXCDETAIL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1IEXCDETAIL>-CHAPID = 1.
<J_1IEXCDETAIL>-MATNR = 1.
<J_1IEXCDETAIL>-MAKTX = 1.
<J_1IEXCDETAIL>-MANUFAC = 1.
<J_1IEXCDETAIL>-MENGE = 1.

ENDLOOP.

LOOP AT IT_J_1IEXCDETAIL INTO WA_J_1IEXCDETAIL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1IEXCDETAIL-MEINS, sy-vline,
  WA_J_1IEXCDETAIL-EXBAS, sy-vline,
  WA_J_1IEXCDETAIL-BEDRATE, sy-vline,
  WA_J_1IEXCDETAIL-SEDRATE, sy-vline,
  WA_J_1IEXCDETAIL-AEDRATE, sy-vline,
  WA_J_1IEXCDETAIL-CESSRATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1IEXCDETAIL 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_1IEXCDETAIL 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_1IEXCDETAIL INTO WA_J_1IEXCDETAIL.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1IEXCDETAIL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IEXCDETAIL-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1IEXCDETAIL-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IEXCDETAIL-MEINS.
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_1IEXCDETAIL_STR, 
CHAPID TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
MANUFAC TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
EXBAS TYPE STRING,
BEDRATE TYPE STRING,
SEDRATE TYPE STRING,
AEDRATE TYPE STRING,
CESSRATE TYPE STRING,
NCCDRATE TYPE STRING,
ECSRATE TYPE STRING,
TOTAL_DUTY TYPE STRING,
DUTY_NAME TYPE STRING,
NOTIFICATION_AVAILED TYPE STRING,
SERIAL_NO TYPE STRING,
ASSESSMENT_NUMBER TYPE STRING,
DUTY_RATE TYPE STRING,
EXADDRATE1 TYPE STRING,
SPECIFIC_RATE TYPE STRING,
OPENING_BAL TYPE STRING,
CLOSING_BAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1IEXCDETAIL_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_1IEXCDETAIL_STR-CHAPID sy-vline 
WA_J_1IEXCDETAIL_STR-MATNR sy-vline 
WA_J_1IEXCDETAIL_STR-MAKTX sy-vline 
WA_J_1IEXCDETAIL_STR-MANUFAC sy-vline 
WA_J_1IEXCDETAIL_STR-MENGE sy-vline 
WA_J_1IEXCDETAIL_STR-MEINS sy-vline 
WA_J_1IEXCDETAIL_STR-EXBAS sy-vline 
WA_J_1IEXCDETAIL_STR-BEDRATE sy-vline 
WA_J_1IEXCDETAIL_STR-SEDRATE sy-vline 
WA_J_1IEXCDETAIL_STR-AEDRATE sy-vline 
WA_J_1IEXCDETAIL_STR-CESSRATE sy-vline 
WA_J_1IEXCDETAIL_STR-NCCDRATE sy-vline 
WA_J_1IEXCDETAIL_STR-ECSRATE sy-vline 
WA_J_1IEXCDETAIL_STR-TOTAL_DUTY sy-vline 
WA_J_1IEXCDETAIL_STR-DUTY_NAME sy-vline 
WA_J_1IEXCDETAIL_STR-NOTIFICATION_AVAILED sy-vline 
WA_J_1IEXCDETAIL_STR-SERIAL_NO sy-vline 
WA_J_1IEXCDETAIL_STR-ASSESSMENT_NUMBER sy-vline 
WA_J_1IEXCDETAIL_STR-DUTY_RATE sy-vline 
WA_J_1IEXCDETAIL_STR-EXADDRATE1 sy-vline 
WA_J_1IEXCDETAIL_STR-SPECIFIC_RATE sy-vline 
WA_J_1IEXCDETAIL_STR-OPENING_BAL sy-vline 
WA_J_1IEXCDETAIL_STR-CLOSING_BAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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