ABAP Select data from SAP table /CCIS/TAX03_INC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /CCIS/TAX03_INC 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 /CCIS/TAX03_INC. 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 /CCIS/TAX03_INC 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_/CCIS/TAX03_INC TYPE STANDARD TABLE OF /CCIS/TAX03_INC,
      WA_/CCIS/TAX03_INC TYPE /CCIS/TAX03_INC,
      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: </CCIS/TAX03_INC> TYPE /CCIS/TAX03_INC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/CCIS/TAX03_INC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /CCIS/TAX03_INC
  INTO TABLE IT_/CCIS/TAX03_INC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CCIS/TAX03_INC
*  INTO TABLE @DATA(IT_/CCIS/TAX03_INC2).
*--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_/CCIS/TAX03_INC INDEX 1 INTO DATA(WA_/CCIS/TAX03_INC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CCIS/TAX03_INC ASSIGNING </CCIS/TAX03_INC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CCIS/TAX03_INC>-RBUKRS = 1.
</CCIS/TAX03_INC>-RTAXOBJ = 1.
</CCIS/TAX03_INC>-REXPTYPE = 1.
</CCIS/TAX03_INC>-RACTIVTYP = 1.
</CCIS/TAX03_INC>-RMATNR = 1.

ENDLOOP.

LOOP AT IT_/CCIS/TAX03_INC INTO WA_/CCIS/TAX03_INC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CCIS/TAX03_INC-RMATKL, sy-vline,
  WA_/CCIS/TAX03_INC-RPRODUCT, sy-vline,
  WA_/CCIS/TAX03_INC-RANLN1, sy-vline,
  WA_/CCIS/TAX03_INC-RANLN2, sy-vline,
  WA_/CCIS/TAX03_INC-RTAXREG, sy-vline,
  WA_/CCIS/TAX03_INC-RTAXROW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CCIS/TAX03_INC 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_/CCIS/TAX03_INC 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_/CCIS/TAX03_INC INTO WA_/CCIS/TAX03_INC.


*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 MATN1, internal->external for field RMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/CCIS/TAX03_INC-RMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CCIS/TAX03_INC-RMATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field RPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/CCIS/TAX03_INC-RPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CCIS/TAX03_INC-RPRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/CCIS/TAX03_INC-RANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CCIS/TAX03_INC-RANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/CCIS/TAX03_INC-RANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CCIS/TAX03_INC-RANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RKTRLAGT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/CCIS/TAX03_INC-RKTRLAGT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CCIS/TAX03_INC-RKTRLAGT.
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_/CCIS/TAX03_INC_STR, 
RBUKRS TYPE STRING,
RTAXOBJ TYPE STRING,
REXPTYPE TYPE STRING,
RACTIVTYP TYPE STRING,
RMATNR TYPE STRING,
RMATKL TYPE STRING,
RPRODUCT TYPE STRING,
RANLN1 TYPE STRING,
RANLN2 TYPE STRING,
RTAXREG TYPE STRING,
RTAXROW TYPE STRING,
RCONTRACT TYPE STRING,
RKTRLAGT TYPE STRING,
RDIVISION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CCIS/TAX03_INC_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_/CCIS/TAX03_INC_STR-RBUKRS sy-vline 
WA_/CCIS/TAX03_INC_STR-RTAXOBJ sy-vline 
WA_/CCIS/TAX03_INC_STR-REXPTYPE sy-vline 
WA_/CCIS/TAX03_INC_STR-RACTIVTYP sy-vline 
WA_/CCIS/TAX03_INC_STR-RMATNR sy-vline 
WA_/CCIS/TAX03_INC_STR-RMATKL sy-vline 
WA_/CCIS/TAX03_INC_STR-RPRODUCT sy-vline 
WA_/CCIS/TAX03_INC_STR-RANLN1 sy-vline 
WA_/CCIS/TAX03_INC_STR-RANLN2 sy-vline 
WA_/CCIS/TAX03_INC_STR-RTAXREG sy-vline 
WA_/CCIS/TAX03_INC_STR-RTAXROW sy-vline 
WA_/CCIS/TAX03_INC_STR-RCONTRACT sy-vline 
WA_/CCIS/TAX03_INC_STR-RKTRLAGT sy-vline 
WA_/CCIS/TAX03_INC_STR-RDIVISION sy-vline      INTO ld_text SEPARATED BY SPACE.

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