ABAP Select data from SAP table FIWTIN_TDS_ADJ_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTIN_TDS_ADJ_ALV
*  INTO TABLE @DATA(IT_FIWTIN_TDS_ADJ_ALV2).
*--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_FIWTIN_TDS_ADJ_ALV INDEX 1 INTO DATA(WA_FIWTIN_TDS_ADJ_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTIN_TDS_ADJ_ALV>-BUKRS = 1.
<FIWTIN_TDS_ADJ_ALV>-BELNR_REVERSED = 1.
<FIWTIN_TDS_ADJ_ALV>-GJAHR_REVERSED = 1.
<FIWTIN_TDS_ADJ_ALV>-BELNR_REVERSAL = 1.
<FIWTIN_TDS_ADJ_ALV>-GJAHR_REVERSAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTIN_TDS_ADJ_ALV-WITHT, sy-vline,
  WA_FIWTIN_TDS_ADJ_ALV-WT_WITHCD, sy-vline,
  WA_FIWTIN_TDS_ADJ_ALV-SECCO, sy-vline,
  WA_FIWTIN_TDS_ADJ_ALV-QSCOD, sy-vline,
  WA_FIWTIN_TDS_ADJ_ALV-LIFNR, sy-vline,
  WA_FIWTIN_TDS_ADJ_ALV-BUDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTIN_TDS_ADJ_ALV 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_FIWTIN_TDS_ADJ_ALV 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_FIWTIN_TDS_ADJ_ALV INTO WA_FIWTIN_TDS_ADJ_ALV.


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

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

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

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

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

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

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

*Conversion exit AU132, internal->external for field ADJ_TDS_AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FIWTIN_TDS_ADJ_ALV-ADJ_TDS_AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTIN_TDS_ADJ_ALV-ADJ_TDS_AMOUNT.
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_FIWTIN_TDS_ADJ_ALV_STR, 
BUKRS TYPE STRING,
BELNR_REVERSED TYPE STRING,
GJAHR_REVERSED TYPE STRING,
BELNR_REVERSAL TYPE STRING,
GJAHR_REVERSAL TYPE STRING,
WITHT TYPE STRING,
WT_WITHCD TYPE STRING,
SECCO TYPE STRING,
QSCOD TYPE STRING,
LIFNR TYPE STRING,
BUDAT TYPE STRING,
AMOUNT_ADJ TYPE STRING,
SHKZG TYPE STRING,
BELNR_ADJ TYPE STRING,
BUDAT_OPEN TYPE STRING,
ADJ_TDS_AMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTIN_TDS_ADJ_ALV_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_FIWTIN_TDS_ADJ_ALV_STR-BUKRS sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-BELNR_REVERSED sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-GJAHR_REVERSED sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-BELNR_REVERSAL sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-GJAHR_REVERSAL sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-WITHT sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-WT_WITHCD sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-SECCO sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-QSCOD sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-LIFNR sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-BUDAT sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-AMOUNT_ADJ sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-SHKZG sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-BELNR_ADJ sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-BUDAT_OPEN sy-vline 
WA_FIWTIN_TDS_ADJ_ALV_STR-ADJ_TDS_AMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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