ABAP Select data from SAP table J_3RF_INV_17_LT 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_LT 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_LT. 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_LT 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_LT TYPE STANDARD TABLE OF J_3RF_INV_17_LT,
      WA_J_3RF_INV_17_LT TYPE J_3RF_INV_17_LT,
      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_LT> TYPE J_3RF_INV_17_LT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RF_INV_17_LT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RF_INV_17_LT
  INTO TABLE IT_J_3RF_INV_17_LT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RF_INV_17_LT
*  INTO TABLE @DATA(IT_J_3RF_INV_17_LT2).
*--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_LT INDEX 1 INTO DATA(WA_J_3RF_INV_17_LT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RF_INV_17_LT ASSIGNING <J_3RF_INV_17_LT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RF_INV_17_LT>-ALV_TEXT = 1.
<J_3RF_INV_17_LT>-S1T = 1.
<J_3RF_INV_17_LT>-APPENDIX_HEADER = 1.
<J_3RF_INV_17_LT>-STRUCT_DIV_NAME = 1.
<J_3RF_INV_17_LT>-ACT_NO = 1.

ENDLOOP.

LOOP AT IT_J_3RF_INV_17_LT INTO WA_J_3RF_INV_17_LT.
*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_LT-ACT_DATE_DAY, sy-vline,
  WA_J_3RF_INV_17_LT-ORG_NAME, sy-vline,
  WA_J_3RF_INV_17_LT-ACT_DATE_MONTH, sy-vline,
  WA_J_3RF_INV_17_LT-ACT_DATE_YEAR, sy-vline,
  WA_J_3RF_INV_17_LT-SPR_DATE_DAY, sy-vline,
  WA_J_3RF_INV_17_LT-SPR_DATE_MONTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RF_INV_17_LT 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_LT 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_LT INTO WA_J_3RF_INV_17_LT.


*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_LT-DEBET_SUM_ALL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-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_LT-CREDIT_SUM_ALL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-CREDIT_SUM_ALL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field DEBET_SUM_ALL
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-DEBET_SUM_ALL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-DEBET_SUM_ALL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field DEBET_SUM_APPR
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-DEBET_SUM_APPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-DEBET_SUM_APPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field DEBET_SUM_NOAPPR
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-DEBET_SUM_NOAPPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-DEBET_SUM_NOAPPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field DEBET_SUM_EXP
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-DEBET_SUM_EXP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-DEBET_SUM_EXP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field CREDIT_SUM_APPR
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-CREDIT_SUM_APPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-CREDIT_SUM_APPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field CREDIT_SUM_NOAPPR
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-CREDIT_SUM_NOAPPR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-CREDIT_SUM_NOAPPR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field CREDIT_SUM_ALL
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-CREDIT_SUM_ALL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-CREDIT_SUM_ALL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC202, internal->external for field CREDIT_SUM_EXP
CALL FUNCTION 'CONVERSION_EXIT_AC202_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_INV_17_LT-CREDIT_SUM_EXP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_INV_17_LT-CREDIT_SUM_EXP.
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_LT_STR, 
ALV_TEXT TYPE STRING,
S1T TYPE STRING,
APPENDIX_HEADER TYPE STRING,
STRUCT_DIV_NAME TYPE STRING,
ACT_NO TYPE STRING,
ACT_DATE_DAY TYPE STRING,
ORG_NAME TYPE STRING,
ACT_DATE_MONTH TYPE STRING,
ACT_DATE_YEAR TYPE STRING,
SPR_DATE_DAY TYPE STRING,
SPR_DATE_MONTH TYPE STRING,
SPR_DATE_YEAR TYPE STRING,
ACC_NAME TYPE STRING,
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,
INV_17_HEADER TYPE STRING,
STRUCT_DIV_NAME TYPE STRING,
CODE_ORDER_NUM TYPE STRING,
CODE_ORDER_DATE TYPE STRING,
CODE_OPER_TYPE TYPE STRING,
ACT_NO TYPE STRING,
ACT_DATE TYPE STRING,
INV_DATE_DAY TYPE STRING,
CODE_STRUCT TYPE STRING,
ORG_NAME TYPE STRING,
CODE_OKPO TYPE STRING,
CODE_ACT_TYPE TYPE STRING,
COMM_CHIEF_POS TYPE STRING,
COMM_CHIEF_NAME TYPE STRING,
COMM_PARTIC_POS1 TYPE STRING,
COMM_PARTIC_NAME1 TYPE STRING,
COMM_PARTIC_POS2 TYPE STRING,
COMM_PARTIC_NAME2 TYPE STRING,
COMM_PARTIC_POS3 TYPE STRING,
COMM_PARTIC_NAME3 TYPE STRING,
DEBET_SUM_ALL TYPE STRING,
HWAER TYPE STRING,
DEBET_SUM_APPR TYPE STRING,
DEBET_SUM_NOAPPR TYPE STRING,
DEBET_SUM_EXP TYPE STRING,
INV_DATE_MONTH TYPE STRING,
INV_DATE_YEAR TYPE STRING,
CREDIT_SUM_APPR TYPE STRING,
CREDIT_SUM_NOAPPR TYPE STRING,
CREDIT_SUM_ALL TYPE STRING,
CREDIT_SUM_EXP TYPE STRING,
ORD_TYPE TYPE STRING,
ORDER_DATE_DAY TYPE STRING,
ORDER_DATE_MONTH TYPE STRING,
ORDER_DATE_YEAR TYPE STRING,
ACT_DATE_DAY TYPE STRING,
ACT_DATE_MONTH TYPE STRING,
ACT_DATE_YEAR 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_LT_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_LT_STR-ALV_TEXT sy-vline 
WA_J_3RF_INV_17_LT_STR-S1T sy-vline 
WA_J_3RF_INV_17_LT_STR-APPENDIX_HEADER sy-vline 
WA_J_3RF_INV_17_LT_STR-STRUCT_DIV_NAME sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_NO sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE_DAY sy-vline 
WA_J_3RF_INV_17_LT_STR-ORG_NAME sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE_MONTH sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE_YEAR sy-vline 
WA_J_3RF_INV_17_LT_STR-SPR_DATE_DAY sy-vline 
WA_J_3RF_INV_17_LT_STR-SPR_DATE_MONTH sy-vline 
WA_J_3RF_INV_17_LT_STR-SPR_DATE_YEAR sy-vline 
WA_J_3RF_INV_17_LT_STR-ACC_NAME sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE sy-vline 
WA_J_3RF_INV_17_LT_STR-DEBET_SUM_ALL sy-vline 
WA_J_3RF_INV_17_LT_STR-CREDIT_SUM_ALL sy-vline 
WA_J_3RF_INV_17_LT_STR-WAERS sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO1 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO2 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO3 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO4 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO5 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO6 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO7 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO8 sy-vline 
WA_J_3RF_INV_17_LT_STR-INV_17_HEADER sy-vline 
WA_J_3RF_INV_17_LT_STR-STRUCT_DIV_NAME sy-vline 
WA_J_3RF_INV_17_LT_STR-CODE_ORDER_NUM sy-vline 
WA_J_3RF_INV_17_LT_STR-CODE_ORDER_DATE sy-vline 
WA_J_3RF_INV_17_LT_STR-CODE_OPER_TYPE sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_NO sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE sy-vline 
WA_J_3RF_INV_17_LT_STR-INV_DATE_DAY sy-vline 
WA_J_3RF_INV_17_LT_STR-CODE_STRUCT sy-vline 
WA_J_3RF_INV_17_LT_STR-ORG_NAME sy-vline 
WA_J_3RF_INV_17_LT_STR-CODE_OKPO sy-vline 
WA_J_3RF_INV_17_LT_STR-CODE_ACT_TYPE sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_CHIEF_POS sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_CHIEF_NAME sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_PARTIC_POS1 sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_PARTIC_NAME1 sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_PARTIC_POS2 sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_PARTIC_NAME2 sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_PARTIC_POS3 sy-vline 
WA_J_3RF_INV_17_LT_STR-COMM_PARTIC_NAME3 sy-vline 
WA_J_3RF_INV_17_LT_STR-DEBET_SUM_ALL sy-vline 
WA_J_3RF_INV_17_LT_STR-HWAER sy-vline 
WA_J_3RF_INV_17_LT_STR-DEBET_SUM_APPR sy-vline 
WA_J_3RF_INV_17_LT_STR-DEBET_SUM_NOAPPR sy-vline 
WA_J_3RF_INV_17_LT_STR-DEBET_SUM_EXP sy-vline 
WA_J_3RF_INV_17_LT_STR-INV_DATE_MONTH sy-vline 
WA_J_3RF_INV_17_LT_STR-INV_DATE_YEAR sy-vline 
WA_J_3RF_INV_17_LT_STR-CREDIT_SUM_APPR sy-vline 
WA_J_3RF_INV_17_LT_STR-CREDIT_SUM_NOAPPR sy-vline 
WA_J_3RF_INV_17_LT_STR-CREDIT_SUM_ALL sy-vline 
WA_J_3RF_INV_17_LT_STR-CREDIT_SUM_EXP sy-vline 
WA_J_3RF_INV_17_LT_STR-ORD_TYPE sy-vline 
WA_J_3RF_INV_17_LT_STR-ORDER_DATE_DAY sy-vline 
WA_J_3RF_INV_17_LT_STR-ORDER_DATE_MONTH sy-vline 
WA_J_3RF_INV_17_LT_STR-ORDER_DATE_YEAR sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE_DAY sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE_MONTH sy-vline 
WA_J_3RF_INV_17_LT_STR-ACT_DATE_YEAR sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO1 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO2 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO3 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO4 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO5 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO6 sy-vline 
WA_J_3RF_INV_17_LT_STR-OKPO7 sy-vline 
WA_J_3RF_INV_17_LT_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.