ABAP Select data from SAP table /SAPCE/FKUA_TXREGKO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPCE/FKUA_TXREGKO 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 /SAPCE/FKUA_TXREGKO. 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 /SAPCE/FKUA_TXREGKO 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_/SAPCE/FKUA_TXREGKO TYPE STANDARD TABLE OF /SAPCE/FKUA_TXREGKO,
      WA_/SAPCE/FKUA_TXREGKO TYPE /SAPCE/FKUA_TXREGKO,
      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: </SAPCE/FKUA_TXREGKO> TYPE /SAPCE/FKUA_TXREGKO.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPCE/FKUA_TXREGKO
  INTO TABLE IT_/SAPCE/FKUA_TXREGKO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPCE/FKUA_TXREGKO
*  INTO TABLE @DATA(IT_/SAPCE/FKUA_TXREGKO2).
*--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_/SAPCE/FKUA_TXREGKO INDEX 1 INTO DATA(WA_/SAPCE/FKUA_TXREGKO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPCE/FKUA_TXREGKO ASSIGNING </SAPCE/FKUA_TXREGKO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPCE/FKUA_TXREGKO>-MANDT = 1.
</SAPCE/FKUA_TXREGKO>-BUKRS = 1.
</SAPCE/FKUA_TXREGKO>-REGTV = 1.
</SAPCE/FKUA_TXREGKO>-GJAHR = 1.
</SAPCE/FKUA_TXREGKO>-FRDAT = 1.

ENDLOOP.

LOOP AT IT_/SAPCE/FKUA_TXREGKO INTO WA_/SAPCE/FKUA_TXREGKO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPCE/FKUA_TXREGKO-TODAT, sy-vline,
  WA_/SAPCE/FKUA_TXREGKO-VENNAME1, sy-vline,
  WA_/SAPCE/FKUA_TXREGKO-VENNAME2, sy-vline,
  WA_/SAPCE/FKUA_TXREGKO-VENNAME3, sy-vline,
  WA_/SAPCE/FKUA_TXREGKO-VENNAME4, sy-vline,
  WA_/SAPCE/FKUA_TXREGKO-VENTAXNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPCE/FKUA_TXREGKO 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_/SAPCE/FKUA_TXREGKO 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_/SAPCE/FKUA_TXREGKO INTO WA_/SAPCE/FKUA_TXREGKO.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/SAPCE/FKUA_TXREGKO-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPCE/FKUA_TXREGKO-GJAHR.
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_/SAPCE/FKUA_TXREGKO_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
REGTV TYPE STRING,
GJAHR TYPE STRING,
FRDAT TYPE STRING,
TODAT TYPE STRING,
VENNAME1 TYPE STRING,
VENNAME2 TYPE STRING,
VENNAME3 TYPE STRING,
VENNAME4 TYPE STRING,
VENTAXNUM TYPE STRING,
VENVATREG TYPE STRING,
KEEP TYPE STRING,
FORIN TYPE STRING,
DECTYPE TYPE STRING,
DECFORM TYPE STRING,
REGPORNUM TYPE STRING,
TAX_NO TYPE STRING,
CEO_NAME TYPE STRING,
HEAD_ACC_NAME TYPE STRING,
TAX_CEO TYPE STRING,
TAX_HACC TYPE STRING,
SUB_DATE TYPE STRING,
VNBNAME1 TYPE STRING,
VNBNAME2 TYPE STRING,
VNBNAME3 TYPE STRING,
VNBNAME4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPCE/FKUA_TXREGKO_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_/SAPCE/FKUA_TXREGKO_STR-MANDT sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-BUKRS sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-REGTV sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-GJAHR sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-FRDAT sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-TODAT sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VENNAME1 sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VENNAME2 sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VENNAME3 sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VENNAME4 sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VENTAXNUM sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VENVATREG sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-KEEP sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-FORIN sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-DECTYPE sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-DECFORM sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-REGPORNUM sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-TAX_NO sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-CEO_NAME sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-HEAD_ACC_NAME sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-TAX_CEO sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-TAX_HACC sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-SUB_DATE sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VNBNAME1 sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VNBNAME2 sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VNBNAME3 sy-vline 
WA_/SAPCE/FKUA_TXREGKO_STR-VNBNAME4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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