ABAP Select data from SAP table TXW_TCJ_WTAX_ITEMS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXW_TCJ_WTAX_ITEMS
*  INTO TABLE @DATA(IT_TXW_TCJ_WTAX_ITEMS2).
*--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_TXW_TCJ_WTAX_ITEMS INDEX 1 INTO DATA(WA_TXW_TCJ_WTAX_ITEMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXW_TCJ_WTAX_ITEMS>-MANDT = 1.
<TXW_TCJ_WTAX_ITEMS>-COMP_CODE = 1.
<TXW_TCJ_WTAX_ITEMS>-CAJO_NUMBER = 1.
<TXW_TCJ_WTAX_ITEMS>-FISC_YEAR = 1.
<TXW_TCJ_WTAX_ITEMS>-POSTING_NUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXW_TCJ_WTAX_ITEMS-POSITION_NUMBER, sy-vline,
  WA_TXW_TCJ_WTAX_ITEMS-WTAXTYPE, sy-vline,
  WA_TXW_TCJ_WTAX_ITEMS-STATUS, sy-vline,
  WA_TXW_TCJ_WTAX_ITEMS-VENDOR_NO, sy-vline,
  WA_TXW_TCJ_WTAX_ITEMS-WT_KEY, sy-vline,
  WA_TXW_TCJ_WTAX_ITEMS-WITHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXW_TCJ_WTAX_ITEMS 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_TXW_TCJ_WTAX_ITEMS 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_TXW_TCJ_WTAX_ITEMS INTO WA_TXW_TCJ_WTAX_ITEMS.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field WT_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_TCJ_WTAX_ITEMS-WT_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_TCJ_WTAX_ITEMS-WT_LOGSYS.
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_TXW_TCJ_WTAX_ITEMS_STR, 
MANDT TYPE STRING,
COMP_CODE TYPE STRING,
CAJO_NUMBER TYPE STRING,
FISC_YEAR TYPE STRING,
POSTING_NUMBER TYPE STRING,
POSITION_NUMBER TYPE STRING,
WTAXTYPE TYPE STRING,
STATUS TYPE STRING,
VENDOR_NO TYPE STRING,
WT_KEY TYPE STRING,
WITHT TYPE STRING,
WT_WITHCD TYPE STRING,
WT_QSSHH TYPE STRING,
WT_QSSHB TYPE STRING,
WT_QSSH2 TYPE STRING,
WT_QSSH3 TYPE STRING,
WT_QBUIHH TYPE STRING,
WT_QBUIHB TYPE STRING,
WT_QBUIH2 TYPE STRING,
WT_QBUIH3 TYPE STRING,
WT_WDMBTR TYPE STRING,
WT_WWRBTR TYPE STRING,
WT_WDMBT2 TYPE STRING,
WT_WDMBT3 TYPE STRING,
WT_BASMAN TYPE STRING,
WT_AMNMAN TYPE STRING,
WT_QBSHH TYPE STRING,
WT_QBSHB TYPE STRING,
WT_QBSH2 TYPE STRING,
WT_QBSH3 TYPE STRING,
WT_QBSHHA TYPE STRING,
WT_QBSHHB TYPE STRING,
WT_STAT TYPE STRING,
WT_QSFHH TYPE STRING,
WT_QSFHB TYPE STRING,
WT_QSFH2 TYPE STRING,
WT_QSFH3 TYPE STRING,
WT_WTEXMN TYPE STRING,
KOART TYPE STRING,
WT_ACCO TYPE STRING,
HKONT TYPE STRING,
HKONT_OPP TYPE STRING,
QSREC TYPE STRING,
AUGBL TYPE STRING,
AUGDT TYPE STRING,
WT_QSZRT TYPE STRING,
TEXT15 TYPE STRING,
QSATZ TYPE STRING,
WT_SLFWTPD TYPE STRING,
WT_GRUWTPD TYPE STRING,
WT_OPOWTPD TYPE STRING,
WT_GIVENPD TYPE STRING,
CTNUMBER TYPE STRING,
WT_DOWNC TYPE STRING,
WT_RESITEM TYPE STRING,
CTISSUEDATE TYPE STRING,
WT_CALC TYPE STRING,
WT_LOGSYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXW_TCJ_WTAX_ITEMS_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_TXW_TCJ_WTAX_ITEMS_STR-MANDT sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-COMP_CODE sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-CAJO_NUMBER sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-FISC_YEAR sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-POSTING_NUMBER sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-POSITION_NUMBER sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WTAXTYPE sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-STATUS sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-VENDOR_NO sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_KEY sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WITHT sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_WITHCD sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSSHH sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSSHB sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSSH2 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSSH3 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBUIHH sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBUIHB sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBUIH2 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBUIH3 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_WDMBTR sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_WWRBTR sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_WDMBT2 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_WDMBT3 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_BASMAN sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_AMNMAN sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBSHH sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBSHB sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBSH2 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBSH3 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBSHHA sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QBSHHB sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_STAT sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSFHH sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSFHB sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSFH2 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSFH3 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_WTEXMN sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-KOART sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_ACCO sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-HKONT sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-HKONT_OPP sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-QSREC sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-AUGBL sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-AUGDT sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_QSZRT sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-TEXT15 sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-QSATZ sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_SLFWTPD sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_GRUWTPD sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_OPOWTPD sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_GIVENPD sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-CTNUMBER sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_DOWNC sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_RESITEM sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-CTISSUEDATE sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_CALC sy-vline 
WA_TXW_TCJ_WTAX_ITEMS_STR-WT_LOGSYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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