ABAP Select data from SAP table ROIUCW_WITHOLDING_TAX_ALV1 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIUCW_WITHOLDING_TAX_ALV1 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 ROIUCW_WITHOLDING_TAX_ALV1. 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 ROIUCW_WITHOLDING_TAX_ALV1 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_ROIUCW_WITHOLDING_TAX_ALV1 TYPE STANDARD TABLE OF ROIUCW_WITHOLDING_TAX_ALV1,
      WA_ROIUCW_WITHOLDING_TAX_ALV1 TYPE ROIUCW_WITHOLDING_TAX_ALV1,
      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: <ROIUCW_WITHOLDING_TAX_ALV1> TYPE ROIUCW_WITHOLDING_TAX_ALV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROIUCW_WITHOLDING_TAX_ALV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROIUCW_WITHOLDING_TAX_ALV1
  INTO TABLE IT_ROIUCW_WITHOLDING_TAX_ALV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIUCW_WITHOLDING_TAX_ALV1
*  INTO TABLE @DATA(IT_ROIUCW_WITHOLDING_TAX_ALV12).
*--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_ROIUCW_WITHOLDING_TAX_ALV1 INDEX 1 INTO DATA(WA_ROIUCW_WITHOLDING_TAX_ALV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIUCW_WITHOLDING_TAX_ALV1 ASSIGNING <ROIUCW_WITHOLDING_TAX_ALV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIUCW_WITHOLDING_TAX_ALV1>-RUN_LEVEL_SUMMARY = 1.
<ROIUCW_WITHOLDING_TAX_ALV1>-HOLD_PROPERTY = 1.
<ROIUCW_WITHOLDING_TAX_ALV1>-HOLD_DOI = 1.
<ROIUCW_WITHOLDING_TAX_ALV1>-STATE_GROSS_AM = 1.
<ROIUCW_WITHOLDING_TAX_ALV1>-FILLER1 = 1.

ENDLOOP.

LOOP AT IT_ROIUCW_WITHOLDING_TAX_ALV1 INTO WA_ROIUCW_WITHOLDING_TAX_ALV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIUCW_WITHOLDING_TAX_ALV1-HOLD_STATE_CD, sy-vline,
  WA_ROIUCW_WITHOLDING_TAX_ALV1-STATE_TAX_AM, sy-vline,
  WA_ROIUCW_WITHOLDING_TAX_ALV1-FILLER2, sy-vline,
  WA_ROIUCW_WITHOLDING_TAX_ALV1-FILLER3, sy-vline,
  WA_ROIUCW_WITHOLDING_TAX_ALV1-FILLER4, sy-vline,
  WA_ROIUCW_WITHOLDING_TAX_ALV1-OWNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIUCW_WITHOLDING_TAX_ALV1 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_ROIUCW_WITHOLDING_TAX_ALV1 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_ROIUCW_WITHOLDING_TAX_ALV1 INTO WA_ROIUCW_WITHOLDING_TAX_ALV1.


*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_ROIUCW_WITHOLDING_TAX_ALV1_STR, 
RUN_LEVEL_SUMMARY TYPE STRING,
HOLD_PROPERTY TYPE STRING,
HOLD_DOI TYPE STRING,
STATE_GROSS_AM TYPE STRING,
FILLER1 TYPE STRING,
HOLD_STATE_CD TYPE STRING,
STATE_TAX_AM TYPE STRING,
FILLER2 TYPE STRING,
FILLER3 TYPE STRING,
FILLER4 TYPE STRING,
OWNER TYPE STRING,
OWNER_SEQ TYPE STRING,
OWNER_GROSS_AM TYPE STRING,
OWNER_NET_AM TYPE STRING,
FILLER5 TYPE STRING,
OWNER_TAX_AM TYPE STRING,
COUNTRY TYPE STRING,
OWNER_NRA_TAX_AM TYPE STRING,
OWNER_BKUP_TAX_AM TYPE STRING,
OWNER_NAME TYPE STRING,
OWNER_TAXID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIUCW_WITHOLDING_TAX_ALV1_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_ROIUCW_WITHOLDING_TAX_ALV1_STR-RUN_LEVEL_SUMMARY sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-HOLD_PROPERTY sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-HOLD_DOI sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-STATE_GROSS_AM sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-FILLER1 sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-HOLD_STATE_CD sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-STATE_TAX_AM sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-FILLER2 sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-FILLER3 sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-FILLER4 sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_SEQ sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_GROSS_AM sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_NET_AM sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-FILLER5 sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_TAX_AM sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-COUNTRY sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_NRA_TAX_AM sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_BKUP_TAX_AM sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_NAME sy-vline 
WA_ROIUCW_WITHOLDING_TAX_ALV1_STR-OWNER_TAXID sy-vline      INTO ld_text SEPARATED BY SPACE.

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