ABAP Select data from SAP table FIWTIN_TDS 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 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. 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 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 TYPE STANDARD TABLE OF FIWTIN_TDS,
      WA_FIWTIN_TDS TYPE FIWTIN_TDS,
      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> TYPE FIWTIN_TDS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTIN_TDS
*  INTO TABLE @DATA(IT_FIWTIN_TDS2).
*--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 INDEX 1 INTO DATA(WA_FIWTIN_TDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTIN_TDS>-MANDT = 1.
<FIWTIN_TDS>-J_1IRECTYP = 1.
<FIWTIN_TDS>-J_1IAWTYP = 1.
<FIWTIN_TDS>-J_1IAWREF = 1.
<FIWTIN_TDS>-J_1IAWORG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTIN_TDS-J_1IFAWTYP, sy-vline,
  WA_FIWTIN_TDS-J_1IFAWREF, sy-vline,
  WA_FIWTIN_TDS-J_1IFAWORG, sy-vline,
  WA_FIWTIN_TDS-BUKRS, sy-vline,
  WA_FIWTIN_TDS-GSBER, sy-vline,
  WA_FIWTIN_TDS-J_1IBUDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTIN_TDS 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 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 INTO WA_FIWTIN_TDS.


*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 J_1IAWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIWTIN_TDS-J_1IAWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTIN_TDS-J_1IAWREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field J_1IFAWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIWTIN_TDS-J_1IFAWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTIN_TDS-J_1IFAWREF.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field J_1IFIYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIWTIN_TDS-J_1IFIYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTIN_TDS-J_1IFIYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field J_1ICDDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIWTIN_TDS-J_1ICDDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTIN_TDS-J_1ICDDOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field J_1ICDYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIWTIN_TDS-J_1ICDYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTIN_TDS-J_1ICDYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIWTIN_TDS-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTIN_TDS-KUNNR.
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_STR, 
MANDT TYPE STRING,
J_1IRECTYP TYPE STRING,
J_1IAWTYP TYPE STRING,
J_1IAWREF TYPE STRING,
J_1IAWORG TYPE STRING,
J_1IFAWTYP TYPE STRING,
J_1IFAWREF TYPE STRING,
J_1IFAWORG TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
J_1IBUDAT TYPE STRING,
LIFNR TYPE STRING,
QSSKZ TYPE STRING,
J_1ITDSAMT TYPE STRING,
J_1ISURAMT TYPE STRING,
J_1IBASAMT TYPE STRING,
J_1IBASLOC TYPE STRING,
J_1IORGAMT TYPE STRING,
J_1ITDCURR TYPE STRING,
J_1IFIYEAR TYPE STRING,
J_1ICDDOC TYPE STRING,
J_1ICDYEAR TYPE STRING,
J_1ITDSDOC TYPE STRING,
J_1ITDSIND TYPE STRING,
J_1ICSTAT TYPE STRING,
J_1ITDCHLN TYPE STRING,
J_1ICHLNDT TYPE STRING,
J_1IEXTCHLN TYPE STRING,
J_1IEXTCHDT TYPE STRING,
BLART TYPE STRING,
J_1ITDINDE TYPE STRING,
J_1ITDINPO TYPE STRING,
J_1IPAYDUE TYPE STRING,
J_1ITANNO TYPE STRING,
J_1IREDIND TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
USNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
J_1ITXVNTY TYPE STRING,
WITHT TYPE STRING,
KOART TYPE STRING,
WT_WTEXMN TYPE STRING,
QSREC TYPE STRING,
AUGBL TYPE STRING,
AUGDT TYPE STRING,
WT_QSZRT TYPE STRING,
WT_ACCBS TYPE STRING,
QSATZ TYPE STRING,
WT_DOWNC TYPE STRING,
BUZEI TYPE STRING,
TDS TYPE STRING,
SURAMT TYPE STRING,
QSCOD TYPE STRING,
GROSSUPIND TYPE STRING,
TAXRATE TYPE STRING,
KUNNR TYPE STRING,
ACCOUNT_NO TYPE STRING,
NAME1 TYPE STRING,
PAN_NO TYPE STRING,
PANREF TYPE STRING,
RECORD_TYPE TYPE STRING,
ACCUM_IND TYPE STRING,
SECCO TYPE STRING,
TAXPS TYPE STRING,
FIWTIN_FORM_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTIN_TDS_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_STR-MANDT sy-vline 
WA_FIWTIN_TDS_STR-J_1IRECTYP sy-vline 
WA_FIWTIN_TDS_STR-J_1IAWTYP sy-vline 
WA_FIWTIN_TDS_STR-J_1IAWREF sy-vline 
WA_FIWTIN_TDS_STR-J_1IAWORG sy-vline 
WA_FIWTIN_TDS_STR-J_1IFAWTYP sy-vline 
WA_FIWTIN_TDS_STR-J_1IFAWREF sy-vline 
WA_FIWTIN_TDS_STR-J_1IFAWORG sy-vline 
WA_FIWTIN_TDS_STR-BUKRS sy-vline 
WA_FIWTIN_TDS_STR-GSBER sy-vline 
WA_FIWTIN_TDS_STR-J_1IBUDAT sy-vline 
WA_FIWTIN_TDS_STR-LIFNR sy-vline 
WA_FIWTIN_TDS_STR-QSSKZ sy-vline 
WA_FIWTIN_TDS_STR-J_1ITDSAMT sy-vline 
WA_FIWTIN_TDS_STR-J_1ISURAMT sy-vline 
WA_FIWTIN_TDS_STR-J_1IBASAMT sy-vline 
WA_FIWTIN_TDS_STR-J_1IBASLOC sy-vline 
WA_FIWTIN_TDS_STR-J_1IORGAMT sy-vline 
WA_FIWTIN_TDS_STR-J_1ITDCURR sy-vline 
WA_FIWTIN_TDS_STR-J_1IFIYEAR sy-vline 
WA_FIWTIN_TDS_STR-J_1ICDDOC sy-vline 
WA_FIWTIN_TDS_STR-J_1ICDYEAR sy-vline 
WA_FIWTIN_TDS_STR-J_1ITDSDOC sy-vline 
WA_FIWTIN_TDS_STR-J_1ITDSIND sy-vline 
WA_FIWTIN_TDS_STR-J_1ICSTAT sy-vline 
WA_FIWTIN_TDS_STR-J_1ITDCHLN sy-vline 
WA_FIWTIN_TDS_STR-J_1ICHLNDT sy-vline 
WA_FIWTIN_TDS_STR-J_1IEXTCHLN sy-vline 
WA_FIWTIN_TDS_STR-J_1IEXTCHDT sy-vline 
WA_FIWTIN_TDS_STR-BLART sy-vline 
WA_FIWTIN_TDS_STR-J_1ITDINDE sy-vline 
WA_FIWTIN_TDS_STR-J_1ITDINPO sy-vline 
WA_FIWTIN_TDS_STR-J_1IPAYDUE sy-vline 
WA_FIWTIN_TDS_STR-J_1ITANNO sy-vline 
WA_FIWTIN_TDS_STR-J_1IREDIND sy-vline 
WA_FIWTIN_TDS_STR-EBELN sy-vline 
WA_FIWTIN_TDS_STR-EBELP sy-vline 
WA_FIWTIN_TDS_STR-USNAM sy-vline 
WA_FIWTIN_TDS_STR-CPUDT sy-vline 
WA_FIWTIN_TDS_STR-CPUTM sy-vline 
WA_FIWTIN_TDS_STR-J_1ITXVNTY sy-vline 
WA_FIWTIN_TDS_STR-WITHT sy-vline 
WA_FIWTIN_TDS_STR-KOART sy-vline 
WA_FIWTIN_TDS_STR-WT_WTEXMN sy-vline 
WA_FIWTIN_TDS_STR-QSREC sy-vline 
WA_FIWTIN_TDS_STR-AUGBL sy-vline 
WA_FIWTIN_TDS_STR-AUGDT sy-vline 
WA_FIWTIN_TDS_STR-WT_QSZRT sy-vline 
WA_FIWTIN_TDS_STR-WT_ACCBS sy-vline 
WA_FIWTIN_TDS_STR-QSATZ sy-vline 
WA_FIWTIN_TDS_STR-WT_DOWNC sy-vline 
WA_FIWTIN_TDS_STR-BUZEI sy-vline 
WA_FIWTIN_TDS_STR-TDS sy-vline 
WA_FIWTIN_TDS_STR-SURAMT sy-vline 
WA_FIWTIN_TDS_STR-QSCOD sy-vline 
WA_FIWTIN_TDS_STR-GROSSUPIND sy-vline 
WA_FIWTIN_TDS_STR-TAXRATE sy-vline 
WA_FIWTIN_TDS_STR-KUNNR sy-vline 
WA_FIWTIN_TDS_STR-ACCOUNT_NO sy-vline 
WA_FIWTIN_TDS_STR-NAME1 sy-vline 
WA_FIWTIN_TDS_STR-PAN_NO sy-vline 
WA_FIWTIN_TDS_STR-PANREF sy-vline 
WA_FIWTIN_TDS_STR-RECORD_TYPE sy-vline 
WA_FIWTIN_TDS_STR-ACCUM_IND sy-vline 
WA_FIWTIN_TDS_STR-SECCO sy-vline 
WA_FIWTIN_TDS_STR-TAXPS sy-vline 
WA_FIWTIN_TDS_STR-FIWTIN_FORM_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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