ABAP Select data from SAP table VIXCITTASIDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIXCITTASIDATA
*  INTO TABLE @DATA(IT_VIXCITTASIDATA2).
*--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_VIXCITTASIDATA INDEX 1 INTO DATA(WA_VIXCITTASIDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIXCITTASIDATA>-MANDT = 1.
<VIXCITTASIDATA>-INTRENO = 1.
<VIXCITTASIDATA>-DATEFROM = 1.
<VIXCITTASIDATA>-DATETO = 1.
<VIXCITTASIDATA>-SCENARIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIXCITTASIDATA-BUKRS, sy-vline,
  WA_VIXCITTASIDATA-RENTALSTAT, sy-vline,
  WA_VIXCITTASIDATA-ISACTIVEICI, sy-vline,
  WA_VIXCITTASIDATA-CURRENCY, sy-vline,
  WA_VIXCITTASIDATA-IS_EXEMPT, sy-vline,
  WA_VIXCITTASIDATA-REDUCTRATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIXCITTASIDATA 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_VIXCITTASIDATA 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_VIXCITTASIDATA INTO WA_VIXCITTASIDATA.


*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 REDAT, internal->external for field DATETO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_VIXCITTASIDATA-DATETO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIXCITTASIDATA-DATETO.
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_VIXCITTASIDATA_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
DATEFROM TYPE STRING,
DATETO TYPE STRING,
SCENARIO TYPE STRING,
BUKRS TYPE STRING,
RENTALSTAT TYPE STRING,
ISACTIVEICI TYPE STRING,
CURRENCY TYPE STRING,
IS_EXEMPT TYPE STRING,
REDUCTRATE TYPE STRING,
TASIRATE TYPE STRING,
ISMANUALRATE TYPE STRING,
LANDLRATE TYPE STRING,
TASIAMT TYPE STRING,
DATPRI TYPE STRING,
DATSEC TYPE STRING,
INSTPRIPAID TYPE STRING,
DOWNPAYMENT TYPE STRING,
BALANCE TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIXCITTASIDATA_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_VIXCITTASIDATA_STR-MANDT sy-vline 
WA_VIXCITTASIDATA_STR-INTRENO sy-vline 
WA_VIXCITTASIDATA_STR-DATEFROM sy-vline 
WA_VIXCITTASIDATA_STR-DATETO sy-vline 
WA_VIXCITTASIDATA_STR-SCENARIO sy-vline 
WA_VIXCITTASIDATA_STR-BUKRS sy-vline 
WA_VIXCITTASIDATA_STR-RENTALSTAT sy-vline 
WA_VIXCITTASIDATA_STR-ISACTIVEICI sy-vline 
WA_VIXCITTASIDATA_STR-CURRENCY sy-vline 
WA_VIXCITTASIDATA_STR-IS_EXEMPT sy-vline 
WA_VIXCITTASIDATA_STR-REDUCTRATE sy-vline 
WA_VIXCITTASIDATA_STR-TASIRATE sy-vline 
WA_VIXCITTASIDATA_STR-ISMANUALRATE sy-vline 
WA_VIXCITTASIDATA_STR-LANDLRATE sy-vline 
WA_VIXCITTASIDATA_STR-TASIAMT sy-vline 
WA_VIXCITTASIDATA_STR-DATPRI sy-vline 
WA_VIXCITTASIDATA_STR-DATSEC sy-vline 
WA_VIXCITTASIDATA_STR-INSTPRIPAID sy-vline 
WA_VIXCITTASIDATA_STR-DOWNPAYMENT sy-vline 
WA_VIXCITTASIDATA_STR-BALANCE sy-vline 
WA_VIXCITTASIDATA_STR-RERF sy-vline 
WA_VIXCITTASIDATA_STR-DERF sy-vline 
WA_VIXCITTASIDATA_STR-TERF sy-vline 
WA_VIXCITTASIDATA_STR-REHER sy-vline 
WA_VIXCITTASIDATA_STR-RBEAR sy-vline 
WA_VIXCITTASIDATA_STR-DBEAR sy-vline 
WA_VIXCITTASIDATA_STR-TBEAR sy-vline 
WA_VIXCITTASIDATA_STR-RBHER sy-vline      INTO ld_text SEPARATED BY SPACE.

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