ABAP Select data from SAP table J_1IEXCINV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1IEXCINV 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_1IEXCINV. 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_1IEXCINV 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_1IEXCINV TYPE STANDARD TABLE OF J_1IEXCINV,
      WA_J_1IEXCINV TYPE J_1IEXCINV,
      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_1IEXCINV> TYPE J_1IEXCINV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1IEXCINV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1IEXCINV
  INTO TABLE IT_J_1IEXCINV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1IEXCINV
*  INTO TABLE @DATA(IT_J_1IEXCINV2).
*--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_1IEXCINV INDEX 1 INTO DATA(WA_J_1IEXCINV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1IEXCINV ASSIGNING <J_1IEXCINV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1IEXCINV>-SELECTION = 1.
<J_1IEXCINV>-MZEILE = 1.
<J_1IEXCINV>-TRNTYP = 1.
<J_1IEXCINV>-DOCNO = 1.
<J_1IEXCINV>-DOCYR = 1.

ENDLOOP.

LOOP AT IT_J_1IEXCINV INTO WA_J_1IEXCINV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1IEXCINV-ZEILE, sy-vline,
  WA_J_1IEXCINV-EXNUM, sy-vline,
  WA_J_1IEXCINV-EXDAT, sy-vline,
  WA_J_1IEXCINV-MATNR, sy-vline,
  WA_J_1IEXCINV-MAKTX, sy-vline,
  WA_J_1IEXCINV-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1IEXCINV 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_1IEXCINV 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_1IEXCINV INTO WA_J_1IEXCINV.


*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_1IEXCINV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IEXCINV-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1IEXCINV-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IEXCINV-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MENGR_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1IEXCINV-MENGR_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IEXCINV-MENGR_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1IEXCINV-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IEXCINV-EBELN.
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_1IEXCINV_STR, 
SELECTION TYPE STRING,
MZEILE TYPE STRING,
TRNTYP TYPE STRING,
DOCNO TYPE STRING,
DOCYR TYPE STRING,
ZEILE TYPE STRING,
EXNUM TYPE STRING,
EXDAT TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
CHARG TYPE STRING,
CHAPID TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
MENGE TYPE STRING,
MENGA TYPE STRING,
MEINS TYPE STRING,
MENGR_UOM TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
EXBAS TYPE STRING,
EXBED TYPE STRING,
EXSED TYPE STRING,
EXAED TYPE STRING,
EXCUR TYPE STRING,
BEDRATE TYPE STRING,
AEDRATE TYPE STRING,
SEDRATE TYPE STRING,
RG23ASER TYPE STRING,
RG23CSER TYPE STRING,
RGPLASER TYPE STRING,
EXCCD TYPE STRING,
EXCRN TYPE STRING,
EXCRG TYPE STRING,
EXCDI TYPE STRING,
EXCCO TYPE STRING,
CSTNO TYPE STRING,
LSTNO TYPE STRING,
PANNO TYPE STRING,
ADDLDATA1 TYPE STRING,
ADDLDATA2 TYPE STRING,
ADDLDATA3 TYPE STRING,
ADDLDATA4 TYPE STRING,
ADDLVAL1 TYPE STRING,
ADDLVAL2 TYPE STRING,
REMTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1IEXCINV_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_1IEXCINV_STR-SELECTION sy-vline 
WA_J_1IEXCINV_STR-MZEILE sy-vline 
WA_J_1IEXCINV_STR-TRNTYP sy-vline 
WA_J_1IEXCINV_STR-DOCNO sy-vline 
WA_J_1IEXCINV_STR-DOCYR sy-vline 
WA_J_1IEXCINV_STR-ZEILE sy-vline 
WA_J_1IEXCINV_STR-EXNUM sy-vline 
WA_J_1IEXCINV_STR-EXDAT sy-vline 
WA_J_1IEXCINV_STR-MATNR sy-vline 
WA_J_1IEXCINV_STR-MAKTX sy-vline 
WA_J_1IEXCINV_STR-CHARG sy-vline 
WA_J_1IEXCINV_STR-CHAPID sy-vline 
WA_J_1IEXCINV_STR-WERKS sy-vline 
WA_J_1IEXCINV_STR-LGORT sy-vline 
WA_J_1IEXCINV_STR-MENGE sy-vline 
WA_J_1IEXCINV_STR-MENGA sy-vline 
WA_J_1IEXCINV_STR-MEINS sy-vline 
WA_J_1IEXCINV_STR-MENGR_UOM sy-vline 
WA_J_1IEXCINV_STR-EBELN sy-vline 
WA_J_1IEXCINV_STR-EBELP sy-vline 
WA_J_1IEXCINV_STR-EXBAS sy-vline 
WA_J_1IEXCINV_STR-EXBED sy-vline 
WA_J_1IEXCINV_STR-EXSED sy-vline 
WA_J_1IEXCINV_STR-EXAED sy-vline 
WA_J_1IEXCINV_STR-EXCUR sy-vline 
WA_J_1IEXCINV_STR-BEDRATE sy-vline 
WA_J_1IEXCINV_STR-AEDRATE sy-vline 
WA_J_1IEXCINV_STR-SEDRATE sy-vline 
WA_J_1IEXCINV_STR-RG23ASER sy-vline 
WA_J_1IEXCINV_STR-RG23CSER sy-vline 
WA_J_1IEXCINV_STR-RGPLASER sy-vline 
WA_J_1IEXCINV_STR-EXCCD sy-vline 
WA_J_1IEXCINV_STR-EXCRN sy-vline 
WA_J_1IEXCINV_STR-EXCRG sy-vline 
WA_J_1IEXCINV_STR-EXCDI sy-vline 
WA_J_1IEXCINV_STR-EXCCO sy-vline 
WA_J_1IEXCINV_STR-CSTNO sy-vline 
WA_J_1IEXCINV_STR-LSTNO sy-vline 
WA_J_1IEXCINV_STR-PANNO sy-vline 
WA_J_1IEXCINV_STR-ADDLDATA1 sy-vline 
WA_J_1IEXCINV_STR-ADDLDATA2 sy-vline 
WA_J_1IEXCINV_STR-ADDLDATA3 sy-vline 
WA_J_1IEXCINV_STR-ADDLDATA4 sy-vline 
WA_J_1IEXCINV_STR-ADDLVAL1 sy-vline 
WA_J_1IEXCINV_STR-ADDLVAL2 sy-vline 
WA_J_1IEXCINV_STR-REMTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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