ABAP Select data from SAP table TXI_T090NAZ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXI_T090NAZ 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_T090NAZ. 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_T090NAZ 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_T090NAZ TYPE STANDARD TABLE OF TXI_T090NAZ,
      WA_TXI_T090NAZ TYPE TXI_T090NAZ,
      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_T090NAZ> TYPE TXI_T090NAZ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TXI_T090NAZ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TXI_T090NAZ
  INTO TABLE IT_TXI_T090NAZ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_T090NAZ
*  INTO TABLE @DATA(IT_TXI_T090NAZ2).
*--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_T090NAZ INDEX 1 INTO DATA(WA_TXI_T090NAZ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TXI_T090NAZ ASSIGNING <TXI_T090NAZ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_T090NAZ>-MANDT = 1.
<TXI_T090NAZ>-AFAPL = 1.
<TXI_T090NAZ>-AFASL = 1.
<TXI_T090NAZ>-AFATYP = 1.
<TXI_T090NAZ>-PHASE = 1.

ENDLOOP.

LOOP AT IT_TXI_T090NAZ INTO WA_TXI_T090NAZ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_T090NAZ-AFARSL, sy-vline,
  WA_TXI_T090NAZ-METDEG, sy-vline,
  WA_TXI_T090NAZ-METPER, sy-vline,
  WA_TXI_T090NAZ-METSTU, sy-vline,
  WA_TXI_T090NAZ-METHBT, sy-vline,
  WA_TXI_T090NAZ-UMSTM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_T090NAZ 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_T090NAZ 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_T090NAZ INTO WA_TXI_T090NAZ.


*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_T090NAZ_STR, 
MANDT TYPE STRING,
AFAPL TYPE STRING,
AFASL TYPE STRING,
AFATYP TYPE STRING,
PHASE TYPE STRING,
AFARSL TYPE STRING,
METDEG TYPE STRING,
METPER TYPE STRING,
METSTU TYPE STRING,
METHBT TYPE STRING,
UMSTM TYPE STRING,
UMRPRZ TYPE STRING,
MSFAKR TYPE STRING,
SCHROTT TYPE STRING,
XSTILL TYPE STRING,
AFACLA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_T090NAZ_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_T090NAZ_STR-MANDT sy-vline 
WA_TXI_T090NAZ_STR-AFAPL sy-vline 
WA_TXI_T090NAZ_STR-AFASL sy-vline 
WA_TXI_T090NAZ_STR-AFATYP sy-vline 
WA_TXI_T090NAZ_STR-PHASE sy-vline 
WA_TXI_T090NAZ_STR-AFARSL sy-vline 
WA_TXI_T090NAZ_STR-METDEG sy-vline 
WA_TXI_T090NAZ_STR-METPER sy-vline 
WA_TXI_T090NAZ_STR-METSTU sy-vline 
WA_TXI_T090NAZ_STR-METHBT sy-vline 
WA_TXI_T090NAZ_STR-UMSTM sy-vline 
WA_TXI_T090NAZ_STR-UMRPRZ sy-vline 
WA_TXI_T090NAZ_STR-MSFAKR sy-vline 
WA_TXI_T090NAZ_STR-SCHROTT sy-vline 
WA_TXI_T090NAZ_STR-XSTILL sy-vline 
WA_TXI_T090NAZ_STR-AFACLA sy-vline      INTO ld_text SEPARATED BY SPACE.

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