ABAP Select data from SAP table J_3RF_INV_17_INTERFACE_ADD_HUA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RF_INV_17_INTERFACE_ADD_HUA 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_3RF_INV_17_INTERFACE_ADD_HUA. 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_3RF_INV_17_INTERFACE_ADD_HUA 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_3RF_INV_17_INTERFACE_ADD_HUA TYPE STANDARD TABLE OF J_3RF_INV_17_INTERFACE_ADD_HUA,
      WA_J_3RF_INV_17_INTERFACE_ADD_HUA TYPE J_3RF_INV_17_INTERFACE_ADD_HUA,
      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_3RF_INV_17_INTERFACE_ADD_HUA> TYPE J_3RF_INV_17_INTERFACE_ADD_HUA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RF_INV_17_INTERFACE_ADD_HUA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RF_INV_17_INTERFACE_ADD_HUA
  INTO TABLE IT_J_3RF_INV_17_INTERFACE_ADD_HUA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RF_INV_17_INTERFACE_ADD_HUA
*  INTO TABLE @DATA(IT_J_3RF_INV_17_INTERFACE_ADD_HUA2).
*--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_3RF_INV_17_INTERFACE_ADD_HUA INDEX 1 INTO DATA(WA_J_3RF_INV_17_INTERFACE_ADD_HUA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RF_INV_17_INTERFACE_ADD_HUA ASSIGNING <J_3RF_INV_17_INTERFACE_ADD_HUA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RF_INV_17_INTERFACE_ADD_HUA>-ACT_DATE = 1.
<J_3RF_INV_17_INTERFACE_ADD_HUA>-DEBET_SUM_ALL = 1.
<J_3RF_INV_17_INTERFACE_ADD_HUA>-CREDIT_SUM_ALL = 1.
<J_3RF_INV_17_INTERFACE_ADD_HUA>-WAERS = 1.
<J_3RF_INV_17_INTERFACE_ADD_HUA>-OKPO1 = 1.

ENDLOOP.

LOOP AT IT_J_3RF_INV_17_INTERFACE_ADD_HUA INTO WA_J_3RF_INV_17_INTERFACE_ADD_HUA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RF_INV_17_INTERFACE_ADD_HUA-OKPO2, sy-vline,
  WA_J_3RF_INV_17_INTERFACE_ADD_HUA-OKPO3, sy-vline,
  WA_J_3RF_INV_17_INTERFACE_ADD_HUA-OKPO4, sy-vline,
  WA_J_3RF_INV_17_INTERFACE_ADD_HUA-OKPO5, sy-vline,
  WA_J_3RF_INV_17_INTERFACE_ADD_HUA-OKPO6, sy-vline,
  WA_J_3RF_INV_17_INTERFACE_ADD_HUA-OKPO7, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RF_INV_17_INTERFACE_ADD_HUA 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_3RF_INV_17_INTERFACE_ADD_HUA 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_3RF_INV_17_INTERFACE_ADD_HUA INTO WA_J_3RF_INV_17_INTERFACE_ADD_HUA.


*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 AU132, internal->external for field DEBET_SUM_ALL
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_INTERFACE_ADD_HUA-DEBET_SUM_ALL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_INTERFACE_ADD_HUA-DEBET_SUM_ALL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field CREDIT_SUM_ALL
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_INTERFACE_ADD_HUA-CREDIT_SUM_ALL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_INTERFACE_ADD_HUA-CREDIT_SUM_ALL.
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_3RF_INV_17_INTERFACE_ADD_HUA_STR, 
ACT_DATE TYPE STRING,
DEBET_SUM_ALL TYPE STRING,
CREDIT_SUM_ALL TYPE STRING,
WAERS TYPE STRING,
OKPO1 TYPE STRING,
OKPO2 TYPE STRING,
OKPO3 TYPE STRING,
OKPO4 TYPE STRING,
OKPO5 TYPE STRING,
OKPO6 TYPE STRING,
OKPO7 TYPE STRING,
OKPO8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RF_INV_17_INTERFACE_ADD_HUA_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_3RF_INV_17_INTERFACE_ADD_HUA_STR-ACT_DATE sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-DEBET_SUM_ALL sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-CREDIT_SUM_ALL sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-WAERS sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO1 sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO2 sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO3 sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO4 sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO5 sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO6 sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO7 sy-vline 
WA_J_3RF_INV_17_INTERFACE_ADD_HUA_STR-OKPO8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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