ABAP Select data from SAP table TXI_T333 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXI_T333 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 TXI_T333. 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 TXI_T333 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_TXI_T333 TYPE STANDARD TABLE OF TXI_T333,
      WA_TXI_T333 TYPE TXI_T333,
      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: <TXI_T333> TYPE TXI_T333.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TXI_T333.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TXI_T333
  INTO TABLE IT_TXI_T333.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_T333
*  INTO TABLE @DATA(IT_TXI_T3332).
*--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_TXI_T333 INDEX 1 INTO DATA(WA_TXI_T3332).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TXI_T333 ASSIGNING <TXI_T333>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_T333>-MANDT = 1.
<TXI_T333>-LGNUM = 1.
<TXI_T333>-BWLVS = 1.
<TXI_T333>-TRART = 1.
<TXI_T333>-VLTYP = 1.

ENDLOOP.

LOOP AT IT_TXI_T333 INTO WA_TXI_T333.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_T333-VLPLA, sy-vline,
  WA_TXI_T333-NLTYP, sy-vline,
  WA_TXI_T333-NLPLA, sy-vline,
  WA_TXI_T333-RLTYP, sy-vline,
  WA_TXI_T333-RLPLA, sy-vline,
  WA_TXI_T333-BETYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_T333 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_TXI_T333 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_TXI_T333 INTO WA_TXI_T333.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TXI_T333_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
BWLVS TYPE STRING,
TRART TYPE STRING,
VLTYP TYPE STRING,
VLPLA TYPE STRING,
NLTYP TYPE STRING,
NLPLA TYPE STRING,
RLTYP TYPE STRING,
RLPLA TYPE STRING,
BETYP TYPE STRING,
TBOBL TYPE STRING,
DRUKZ TYPE STRING,
SQUIT TYPE STRING,
TBMAN TYPE STRING,
DUNKL TYPE STRING,
VQUIT TYPE STRING,
TBPRI TYPE STRING,
WEDAT TYPE STRING,
LPMAN TYPE STRING,
VKDYN TYPE STRING,
NKDYN TYPE STRING,
ABILD TYPE STRING,
FEHLT TYPE STRING,
VFIXP TYPE STRING,
NFIXP TYPE STRING,
KZUAP TYPE STRING,
BWREF TYPE STRING,
UELIE TYPE STRING,
AUTTA TYPE STRING,
ZUSTE TYPE STRING,
CHSWM TYPE STRING,
QBILD TYPE STRING,
RULES TYPE STRING,
VEPST TYPE STRING,
DBILD TYPE STRING,
NO2ST TYPE STRING,
PIKTA TYPE STRING,
WMMUE TYPE STRING,
XDREL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_T333_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_TXI_T333_STR-MANDT sy-vline 
WA_TXI_T333_STR-LGNUM sy-vline 
WA_TXI_T333_STR-BWLVS sy-vline 
WA_TXI_T333_STR-TRART sy-vline 
WA_TXI_T333_STR-VLTYP sy-vline 
WA_TXI_T333_STR-VLPLA sy-vline 
WA_TXI_T333_STR-NLTYP sy-vline 
WA_TXI_T333_STR-NLPLA sy-vline 
WA_TXI_T333_STR-RLTYP sy-vline 
WA_TXI_T333_STR-RLPLA sy-vline 
WA_TXI_T333_STR-BETYP sy-vline 
WA_TXI_T333_STR-TBOBL sy-vline 
WA_TXI_T333_STR-DRUKZ sy-vline 
WA_TXI_T333_STR-SQUIT sy-vline 
WA_TXI_T333_STR-TBMAN sy-vline 
WA_TXI_T333_STR-DUNKL sy-vline 
WA_TXI_T333_STR-VQUIT sy-vline 
WA_TXI_T333_STR-TBPRI sy-vline 
WA_TXI_T333_STR-WEDAT sy-vline 
WA_TXI_T333_STR-LPMAN sy-vline 
WA_TXI_T333_STR-VKDYN sy-vline 
WA_TXI_T333_STR-NKDYN sy-vline 
WA_TXI_T333_STR-ABILD sy-vline 
WA_TXI_T333_STR-FEHLT sy-vline 
WA_TXI_T333_STR-VFIXP sy-vline 
WA_TXI_T333_STR-NFIXP sy-vline 
WA_TXI_T333_STR-KZUAP sy-vline 
WA_TXI_T333_STR-BWREF sy-vline 
WA_TXI_T333_STR-UELIE sy-vline 
WA_TXI_T333_STR-AUTTA sy-vline 
WA_TXI_T333_STR-ZUSTE sy-vline 
WA_TXI_T333_STR-CHSWM sy-vline 
WA_TXI_T333_STR-QBILD sy-vline 
WA_TXI_T333_STR-RULES sy-vline 
WA_TXI_T333_STR-VEPST sy-vline 
WA_TXI_T333_STR-DBILD sy-vline 
WA_TXI_T333_STR-NO2ST sy-vline 
WA_TXI_T333_STR-PIKTA sy-vline 
WA_TXI_T333_STR-WMMUE sy-vline 
WA_TXI_T333_STR-XDREL sy-vline      INTO ld_text SEPARATED BY SPACE.

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