ABAP Select data from SAP table AVIAKHODD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVIAKHODD
*  INTO TABLE @DATA(IT_AVIAKHODD2).
*--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_AVIAKHODD INDEX 1 INTO DATA(WA_AVIAKHODD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVIAKHODD>-MANDT = 1.
<AVIAKHODD>-DBANDID = 1.
<AVIAKHODD>-DLFDNR = 1.
<AVIAKHODD>-REC_TYP = 1.
<AVIAKHODD>-ABRKDNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVIAKHODD-STECHEM, sy-vline,
  WA_AVIAKHODD-ABRLTAG, sy-vline,
  WA_AVIAKHODD-ABNNR, sy-vline,
  WA_AVIAKHODD-ABRGKOSTD, sy-vline,
  WA_AVIAKHODD-ABRGZAHLD, sy-vline,
  WA_AVIAKHODD-ABRSALDOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AVIAKHODD 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_AVIAKHODD 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_AVIAKHODD INTO WA_AVIAKHODD.


*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_AVIAKHODD_STR, 
MANDT TYPE STRING,
DBANDID TYPE STRING,
DLFDNR TYPE STRING,
REC_TYP TYPE STRING,
ABRKDNR TYPE STRING,
STECHEM TYPE STRING,
ABRLTAG TYPE STRING,
ABNNR TYPE STRING,
ABRGKOSTD TYPE STRING,
ABRGZAHLD TYPE STRING,
ABRSALDOD TYPE STRING,
ABRABND TYPE STRING,
ABRUMLWBT TYPE STRING,
ABRSTTAG TYPE STRING,
ABRNZAHL TYPE STRING,
ABRRES4 TYPE STRING,
ABRMWSTBTD TYPE STRING,
ABRWAERS TYPE STRING,
ABRRES3 TYPE STRING,
DABRECH TYPE STRING,
VVABBLN TYPE STRING,
DSTORNO TYPE STRING,
SHEIZZ TYPE STRING,
INTRENOME TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AVIAKHODD_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_AVIAKHODD_STR-MANDT sy-vline 
WA_AVIAKHODD_STR-DBANDID sy-vline 
WA_AVIAKHODD_STR-DLFDNR sy-vline 
WA_AVIAKHODD_STR-REC_TYP sy-vline 
WA_AVIAKHODD_STR-ABRKDNR sy-vline 
WA_AVIAKHODD_STR-STECHEM sy-vline 
WA_AVIAKHODD_STR-ABRLTAG sy-vline 
WA_AVIAKHODD_STR-ABNNR sy-vline 
WA_AVIAKHODD_STR-ABRGKOSTD sy-vline 
WA_AVIAKHODD_STR-ABRGZAHLD sy-vline 
WA_AVIAKHODD_STR-ABRSALDOD sy-vline 
WA_AVIAKHODD_STR-ABRABND sy-vline 
WA_AVIAKHODD_STR-ABRUMLWBT sy-vline 
WA_AVIAKHODD_STR-ABRSTTAG sy-vline 
WA_AVIAKHODD_STR-ABRNZAHL sy-vline 
WA_AVIAKHODD_STR-ABRRES4 sy-vline 
WA_AVIAKHODD_STR-ABRMWSTBTD sy-vline 
WA_AVIAKHODD_STR-ABRWAERS sy-vline 
WA_AVIAKHODD_STR-ABRRES3 sy-vline 
WA_AVIAKHODD_STR-DABRECH sy-vline 
WA_AVIAKHODD_STR-VVABBLN sy-vline 
WA_AVIAKHODD_STR-DSTORNO sy-vline 
WA_AVIAKHODD_STR-SHEIZZ sy-vline 
WA_AVIAKHODD_STR-INTRENOME sy-vline 
WA_AVIAKHODD_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.