ABAP Select data from SAP table AVIXCITCADLOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVIXCITCADLOG
*  INTO TABLE @DATA(IT_AVIXCITCADLOG2).
*--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_AVIXCITCADLOG INDEX 1 INTO DATA(WA_AVIXCITCADLOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVIXCITCADLOG>-MANDT = 1.
<AVIXCITCADLOG>-PROCESSID = 1.
<AVIXCITCADLOG>-KEY_DATE = 1.
<AVIXCITCADLOG>-ORIG_INTRENO = 1.
<AVIXCITCADLOG>-NEW_INTRENO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVIXCITCADLOG-COMPLETED, sy-vline,
  WA_AVIXCITCADLOG-CADOPERATION, sy-vline,
  WA_AVIXCITCADLOG-OBJTYPE, sy-vline,
  WA_AVIXCITCADLOG-ISNEW, sy-vline,
  WA_AVIXCITCADLOG-ISPARKED, sy-vline,
  WA_AVIXCITCADLOG-RERF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AVIXCITCADLOG 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_AVIXCITCADLOG 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_AVIXCITCADLOG INTO WA_AVIXCITCADLOG.


*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_AVIXCITCADLOG_STR, 
MANDT TYPE STRING,
PROCESSID TYPE STRING,
KEY_DATE TYPE STRING,
ORIG_INTRENO TYPE STRING,
NEW_INTRENO TYPE STRING,
COMPLETED TYPE STRING,
CADOPERATION TYPE STRING,
OBJTYPE TYPE STRING,
ISNEW TYPE STRING,
ISPARKED 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_AVIXCITCADLOG_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_AVIXCITCADLOG_STR-MANDT sy-vline 
WA_AVIXCITCADLOG_STR-PROCESSID sy-vline 
WA_AVIXCITCADLOG_STR-KEY_DATE sy-vline 
WA_AVIXCITCADLOG_STR-ORIG_INTRENO sy-vline 
WA_AVIXCITCADLOG_STR-NEW_INTRENO sy-vline 
WA_AVIXCITCADLOG_STR-COMPLETED sy-vline 
WA_AVIXCITCADLOG_STR-CADOPERATION sy-vline 
WA_AVIXCITCADLOG_STR-OBJTYPE sy-vline 
WA_AVIXCITCADLOG_STR-ISNEW sy-vline 
WA_AVIXCITCADLOG_STR-ISPARKED sy-vline 
WA_AVIXCITCADLOG_STR-RERF sy-vline 
WA_AVIXCITCADLOG_STR-DERF sy-vline 
WA_AVIXCITCADLOG_STR-TERF sy-vline 
WA_AVIXCITCADLOG_STR-REHER sy-vline 
WA_AVIXCITCADLOG_STR-RBEAR sy-vline 
WA_AVIXCITCADLOG_STR-DBEAR sy-vline 
WA_AVIXCITCADLOG_STR-TBEAR sy-vline 
WA_AVIXCITCADLOG_STR-RBHER sy-vline 
WA_AVIXCITCADLOG_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.