ABAP Select data from SAP table AVIXCITIREDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVIXCITIREDATA
*  INTO TABLE @DATA(IT_AVIXCITIREDATA2).
*--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_AVIXCITIREDATA INDEX 1 INTO DATA(WA_AVIXCITIREDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVIXCITIREDATA>-MANDT = 1.
<AVIXCITIREDATA>-INTRENO = 1.
<AVIXCITIREDATA>-BILLDATE = 1.
<AVIXCITIREDATA>-CURRENCY = 1.
<AVIXCITIREDATA>-IRECALCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVIXCITIREDATA-RENTAL, sy-vline,
  WA_AVIXCITIREDATA-RTAXAMOUNT, sy-vline,
  WA_AVIXCITIREDATA-IREPERCENT, sy-vline,
  WA_AVIXCITIREDATA-REDPERCENT, sy-vline,
  WA_AVIXCITIREDATA-IREAMOUNT, sy-vline,
  WA_AVIXCITIREDATA-ISPAYB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AVIXCITIREDATA 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_AVIXCITIREDATA 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_AVIXCITIREDATA INTO WA_AVIXCITIREDATA.


*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 ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AVIXCITIREDATA-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVIXCITIREDATA-LOGSYSTEM.
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_AVIXCITIREDATA_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
BILLDATE TYPE STRING,
CURRENCY TYPE STRING,
IRECALCTYPE TYPE STRING,
RENTAL TYPE STRING,
RTAXAMOUNT TYPE STRING,
IREPERCENT TYPE STRING,
REDPERCENT TYPE STRING,
IREAMOUNT TYPE STRING,
ISPAYB TYPE STRING,
IREPAYB TYPE STRING,
PERCENPAYB TYPE STRING,
XACCPOS TYPE STRING,
ISACTIVE TYPE STRING,
PSTDATE TYPE STRING,
TCODE1 TYPE STRING,
TYEAR TYPE STRING,
TCODE2 TYPE STRING,
TCODE3 TYPE STRING,
TYEARX TYPE STRING,
IREOFFVALUE TYPE STRING,
REFDOCTYPE TYPE STRING,
REFDOCID TYPE STRING,
LOGSYSTEM TYPE STRING,
ISCANCELED TYPE STRING,
TERMMONTHS TYPE STRING,
TAXCODE2AMOUNT TYPE STRING,
TAXCODE3AMOUNT TYPE STRING,
ISPAYB_2 TYPE STRING,
ISPAYB_3 TYPE STRING,
ISPAYB_OFF_VALUE TYPE STRING,
ISSUMM_1 TYPE STRING,
ISSUMM_2 TYPE STRING,
ISSUMM_3 TYPE STRING,
ISSUMM_OFF_VALUE TYPE STRING,
IRERENTAXAMOUNT TYPE STRING,
PAYBACK1RATE TYPE STRING,
PAYBACK2RATE TYPE STRING,
PAYBACK3RATE TYPE STRING,
PAYBACKRRATE TYPE STRING,
TRANSFER TYPE STRING,
OBJRENTALCODE TYPE STRING,
ONETIMEDEDUCAM TYPE STRING,
ISONETIMEPYMNT TYPE STRING,
CFPAYGUID_PB1 TYPE STRING,
CFPAYGUID_PB2 TYPE STRING,
CFPAYGUID_PB3 TYPE STRING,
CFPAYGUID_PB_RO 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,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AVIXCITIREDATA_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_AVIXCITIREDATA_STR-MANDT sy-vline 
WA_AVIXCITIREDATA_STR-INTRENO sy-vline 
WA_AVIXCITIREDATA_STR-BILLDATE sy-vline 
WA_AVIXCITIREDATA_STR-CURRENCY sy-vline 
WA_AVIXCITIREDATA_STR-IRECALCTYPE sy-vline 
WA_AVIXCITIREDATA_STR-RENTAL sy-vline 
WA_AVIXCITIREDATA_STR-RTAXAMOUNT sy-vline 
WA_AVIXCITIREDATA_STR-IREPERCENT sy-vline 
WA_AVIXCITIREDATA_STR-REDPERCENT sy-vline 
WA_AVIXCITIREDATA_STR-IREAMOUNT sy-vline 
WA_AVIXCITIREDATA_STR-ISPAYB sy-vline 
WA_AVIXCITIREDATA_STR-IREPAYB sy-vline 
WA_AVIXCITIREDATA_STR-PERCENPAYB sy-vline 
WA_AVIXCITIREDATA_STR-XACCPOS sy-vline 
WA_AVIXCITIREDATA_STR-ISACTIVE sy-vline 
WA_AVIXCITIREDATA_STR-PSTDATE sy-vline 
WA_AVIXCITIREDATA_STR-TCODE1 sy-vline 
WA_AVIXCITIREDATA_STR-TYEAR sy-vline 
WA_AVIXCITIREDATA_STR-TCODE2 sy-vline 
WA_AVIXCITIREDATA_STR-TCODE3 sy-vline 
WA_AVIXCITIREDATA_STR-TYEARX sy-vline 
WA_AVIXCITIREDATA_STR-IREOFFVALUE sy-vline 
WA_AVIXCITIREDATA_STR-REFDOCTYPE sy-vline 
WA_AVIXCITIREDATA_STR-REFDOCID sy-vline 
WA_AVIXCITIREDATA_STR-LOGSYSTEM sy-vline 
WA_AVIXCITIREDATA_STR-ISCANCELED sy-vline 
WA_AVIXCITIREDATA_STR-TERMMONTHS sy-vline 
WA_AVIXCITIREDATA_STR-TAXCODE2AMOUNT sy-vline 
WA_AVIXCITIREDATA_STR-TAXCODE3AMOUNT sy-vline 
WA_AVIXCITIREDATA_STR-ISPAYB_2 sy-vline 
WA_AVIXCITIREDATA_STR-ISPAYB_3 sy-vline 
WA_AVIXCITIREDATA_STR-ISPAYB_OFF_VALUE sy-vline 
WA_AVIXCITIREDATA_STR-ISSUMM_1 sy-vline 
WA_AVIXCITIREDATA_STR-ISSUMM_2 sy-vline 
WA_AVIXCITIREDATA_STR-ISSUMM_3 sy-vline 
WA_AVIXCITIREDATA_STR-ISSUMM_OFF_VALUE sy-vline 
WA_AVIXCITIREDATA_STR-IRERENTAXAMOUNT sy-vline 
WA_AVIXCITIREDATA_STR-PAYBACK1RATE sy-vline 
WA_AVIXCITIREDATA_STR-PAYBACK2RATE sy-vline 
WA_AVIXCITIREDATA_STR-PAYBACK3RATE sy-vline 
WA_AVIXCITIREDATA_STR-PAYBACKRRATE sy-vline 
WA_AVIXCITIREDATA_STR-TRANSFER sy-vline 
WA_AVIXCITIREDATA_STR-OBJRENTALCODE sy-vline 
WA_AVIXCITIREDATA_STR-ONETIMEDEDUCAM sy-vline 
WA_AVIXCITIREDATA_STR-ISONETIMEPYMNT sy-vline 
WA_AVIXCITIREDATA_STR-CFPAYGUID_PB1 sy-vline 
WA_AVIXCITIREDATA_STR-CFPAYGUID_PB2 sy-vline 
WA_AVIXCITIREDATA_STR-CFPAYGUID_PB3 sy-vline 
WA_AVIXCITIREDATA_STR-CFPAYGUID_PB_RO sy-vline 
WA_AVIXCITIREDATA_STR-RERF sy-vline 
WA_AVIXCITIREDATA_STR-DERF sy-vline 
WA_AVIXCITIREDATA_STR-TERF sy-vline 
WA_AVIXCITIREDATA_STR-REHER sy-vline 
WA_AVIXCITIREDATA_STR-RBEAR sy-vline 
WA_AVIXCITIREDATA_STR-DBEAR sy-vline 
WA_AVIXCITIREDATA_STR-TBEAR sy-vline 
WA_AVIXCITIREDATA_STR-RBHER sy-vline 
WA_AVIXCITIREDATA_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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