ABAP Select data from SAP table TXI_T077K into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXI_T077K 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_T077K. 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_T077K 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_T077K TYPE STANDARD TABLE OF TXI_T077K,
      WA_TXI_T077K TYPE TXI_T077K,
      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_T077K> TYPE TXI_T077K.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TXI_T077K.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TXI_T077K
  INTO TABLE IT_TXI_T077K.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_T077K
*  INTO TABLE @DATA(IT_TXI_T077K2).
*--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_T077K INDEX 1 INTO DATA(WA_TXI_T077K2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TXI_T077K ASSIGNING <TXI_T077K>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_T077K>-MANDT = 1.
<TXI_T077K>-KTOKK = 1.
<TXI_T077K>-FAUSA = 1.
<TXI_T077K>-FAUSF = 1.
<TXI_T077K>-FAUSM = 1.

ENDLOOP.

LOOP AT IT_TXI_T077K INTO WA_TXI_T077K.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_T077K-NUMKR, sy-vline,
  WA_TXI_T077K-XCPDS, sy-vline,
  WA_TXI_T077K-FAUS1, sy-vline,
  WA_TXI_T077K-FAUSW, sy-vline,
  WA_TXI_T077K-FAUST, sy-vline,
  WA_TXI_T077K-LTSNA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_T077K 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_T077K 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_T077K INTO WA_TXI_T077K.


*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_T077K_STR, 
MANDT TYPE STRING,
KTOKK TYPE STRING,
FAUSA TYPE STRING,
FAUSF TYPE STRING,
FAUSM TYPE STRING,
NUMKR TYPE STRING,
XCPDS TYPE STRING,
FAUS1 TYPE STRING,
FAUSW TYPE STRING,
FAUST TYPE STRING,
LTSNA TYPE STRING,
WERKR TYPE STRING,
PARGE TYPE STRING,
PARGT TYPE STRING,
PARGW TYPE STRING,
DURAS TYPE STRING,
KTOKD TYPE STRING,
FAUSG TYPE STRING,
FAUSN TYPE STRING,
FAUSX TYPE STRING,
FAUSU TYPE STRING,
FAUS2 TYPE STRING,
FAUS3 TYPE STRING,
XCPDADDRCHK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_T077K_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_T077K_STR-MANDT sy-vline 
WA_TXI_T077K_STR-KTOKK sy-vline 
WA_TXI_T077K_STR-FAUSA sy-vline 
WA_TXI_T077K_STR-FAUSF sy-vline 
WA_TXI_T077K_STR-FAUSM sy-vline 
WA_TXI_T077K_STR-NUMKR sy-vline 
WA_TXI_T077K_STR-XCPDS sy-vline 
WA_TXI_T077K_STR-FAUS1 sy-vline 
WA_TXI_T077K_STR-FAUSW sy-vline 
WA_TXI_T077K_STR-FAUST sy-vline 
WA_TXI_T077K_STR-LTSNA sy-vline 
WA_TXI_T077K_STR-WERKR sy-vline 
WA_TXI_T077K_STR-PARGE sy-vline 
WA_TXI_T077K_STR-PARGT sy-vline 
WA_TXI_T077K_STR-PARGW sy-vline 
WA_TXI_T077K_STR-DURAS sy-vline 
WA_TXI_T077K_STR-KTOKD sy-vline 
WA_TXI_T077K_STR-FAUSG sy-vline 
WA_TXI_T077K_STR-FAUSN sy-vline 
WA_TXI_T077K_STR-FAUSX sy-vline 
WA_TXI_T077K_STR-FAUSU sy-vline 
WA_TXI_T077K_STR-FAUS2 sy-vline 
WA_TXI_T077K_STR-FAUS3 sy-vline 
WA_TXI_T077K_STR-XCPDADDRCHK sy-vline      INTO ld_text SEPARATED BY SPACE.

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