ABAP Select data from SAP table TXI_T141 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXI_T141 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_T141. 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_T141 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_T141 TYPE STANDARD TABLE OF TXI_T141,
      WA_TXI_T141 TYPE TXI_T141,
      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_T141> TYPE TXI_T141.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TXI_T141.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TXI_T141
  INTO TABLE IT_TXI_T141.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_T141
*  INTO TABLE @DATA(IT_TXI_T1412).
*--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_T141 INDEX 1 INTO DATA(WA_TXI_T1412).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TXI_T141 ASSIGNING <TXI_T141>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_T141>-MANDT = 1.
<TXI_T141>-MMSTA = 1.
<TXI_T141>-DEINK = 1.
<TXI_T141>-DSTLK = 1.
<TXI_T141>-DSTLP = 1.

ENDLOOP.

LOOP AT IT_TXI_T141 INTO WA_TXI_T141.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_T141-DAPLA, sy-vline,
  WA_TXI_T141-DPBED, sy-vline,
  WA_TXI_T141-DDISP, sy-vline,
  WA_TXI_T141-DFAPO, sy-vline,
  WA_TXI_T141-DFAKO, sy-vline,
  WA_TXI_T141-DINST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_T141 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_T141 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_T141 INTO WA_TXI_T141.


*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_T141_STR, 
MANDT TYPE STRING,
MMSTA TYPE STRING,
DEINK TYPE STRING,
DSTLK TYPE STRING,
DSTLP TYPE STRING,
DAPLA TYPE STRING,
DPBED TYPE STRING,
DDISP TYPE STRING,
DFAPO TYPE STRING,
DFAKO TYPE STRING,
DINST TYPE STRING,
DBEST TYPE STRING,
DPROG TYPE STRING,
DFHMI TYPE STRING,
DQMPF TYPE STRING,
DTBED TYPE STRING,
DTAUF TYPE STRING,
DERZK TYPE STRING,
DLFPL TYPE STRING,
DLOCK TYPE STRING,
AUPRF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_T141_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_T141_STR-MANDT sy-vline 
WA_TXI_T141_STR-MMSTA sy-vline 
WA_TXI_T141_STR-DEINK sy-vline 
WA_TXI_T141_STR-DSTLK sy-vline 
WA_TXI_T141_STR-DSTLP sy-vline 
WA_TXI_T141_STR-DAPLA sy-vline 
WA_TXI_T141_STR-DPBED sy-vline 
WA_TXI_T141_STR-DDISP sy-vline 
WA_TXI_T141_STR-DFAPO sy-vline 
WA_TXI_T141_STR-DFAKO sy-vline 
WA_TXI_T141_STR-DINST sy-vline 
WA_TXI_T141_STR-DBEST sy-vline 
WA_TXI_T141_STR-DPROG sy-vline 
WA_TXI_T141_STR-DFHMI sy-vline 
WA_TXI_T141_STR-DQMPF sy-vline 
WA_TXI_T141_STR-DTBED sy-vline 
WA_TXI_T141_STR-DTAUF sy-vline 
WA_TXI_T141_STR-DERZK sy-vline 
WA_TXI_T141_STR-DLFPL sy-vline 
WA_TXI_T141_STR-DLOCK sy-vline 
WA_TXI_T141_STR-AUPRF sy-vline      INTO ld_text SEPARATED BY SPACE.

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