ABAP Select data from SAP table AVIORRSCOST into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AVIORRSCOST 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 AVIORRSCOST. 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 AVIORRSCOST 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_AVIORRSCOST TYPE STANDARD TABLE OF AVIORRSCOST,
      WA_AVIORRSCOST TYPE AVIORRSCOST,
      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: <AVIORRSCOST> TYPE AVIORRSCOST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVIORRSCOST
*  INTO TABLE @DATA(IT_AVIORRSCOST2).
*--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_AVIORRSCOST INDEX 1 INTO DATA(WA_AVIORRSCOST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVIORRSCOST>-MANDT = 1.
<AVIORRSCOST>-COSTGUID = 1.
<AVIORRSCOST>-PROCESSGUID = 1.
<AVIORRSCOST>-OBJNROO = 1.
<AVIORRSCOST>-VALIDFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVIORRSCOST-VALIDTO, sy-vline,
  WA_AVIORRSCOST-OCCOBJNR, sy-vline,
  WA_AVIORRSCOST-OCCOBJPERCENT, sy-vline,
  WA_AVIORRSCOST-ACCTASSOBJNR, sy-vline,
  WA_AVIORRSCOST-CONDTYPE, sy-vline,
  WA_AVIORRSCOST-SRVTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AVIORRSCOST 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_AVIORRSCOST 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_AVIORRSCOST INTO WA_AVIORRSCOST.


*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 RETZS, internal->external for field VALIDFROM
CALL FUNCTION 'CONVERSION_EXIT_RETZS_OUTPUT'
  EXPORTING
    input =                      WA_AVIORRSCOST-VALIDFROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVIORRSCOST-VALIDFROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RETZS, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_RETZS_OUTPUT'
  EXPORTING
    input =                      WA_AVIORRSCOST-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVIORRSCOST-VALIDTO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field REVBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AVIORRSCOST-REVBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVIORRSCOST-REVBELNR.
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_AVIORRSCOST_STR, 
MANDT TYPE STRING,
COSTGUID TYPE STRING,
PROCESSGUID TYPE STRING,
OBJNROO TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
OCCOBJNR TYPE STRING,
OCCOBJPERCENT TYPE STRING,
ACCTASSOBJNR TYPE STRING,
CONDTYPE TYPE STRING,
SRVTYPE TYPE STRING,
FLOWTYPE TYPE STRING,
PRICE TYPE STRING,
PRICECURRKEY TYPE STRING,
ISPOSTEXT TYPE STRING,
EXTINVREC TYPE STRING,
PAYMENTSTATUS TYPE STRING,
ISREVERSAL TYPE STRING,
SETTLETYPE TYPE STRING,
DOCGUID TYPE STRING,
ITEMNO TYPE STRING,
CFPAYGUID TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
ISCOSTREVERSED TYPE STRING,
REVBELNR TYPE STRING,
RSBUKRS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AVIORRSCOST_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_AVIORRSCOST_STR-MANDT sy-vline 
WA_AVIORRSCOST_STR-COSTGUID sy-vline 
WA_AVIORRSCOST_STR-PROCESSGUID sy-vline 
WA_AVIORRSCOST_STR-OBJNROO sy-vline 
WA_AVIORRSCOST_STR-VALIDFROM sy-vline 
WA_AVIORRSCOST_STR-VALIDTO sy-vline 
WA_AVIORRSCOST_STR-OCCOBJNR sy-vline 
WA_AVIORRSCOST_STR-OCCOBJPERCENT sy-vline 
WA_AVIORRSCOST_STR-ACCTASSOBJNR sy-vline 
WA_AVIORRSCOST_STR-CONDTYPE sy-vline 
WA_AVIORRSCOST_STR-SRVTYPE sy-vline 
WA_AVIORRSCOST_STR-FLOWTYPE sy-vline 
WA_AVIORRSCOST_STR-PRICE sy-vline 
WA_AVIORRSCOST_STR-PRICECURRKEY sy-vline 
WA_AVIORRSCOST_STR-ISPOSTEXT sy-vline 
WA_AVIORRSCOST_STR-EXTINVREC sy-vline 
WA_AVIORRSCOST_STR-PAYMENTSTATUS sy-vline 
WA_AVIORRSCOST_STR-ISREVERSAL sy-vline 
WA_AVIORRSCOST_STR-SETTLETYPE sy-vline 
WA_AVIORRSCOST_STR-DOCGUID sy-vline 
WA_AVIORRSCOST_STR-ITEMNO sy-vline 
WA_AVIORRSCOST_STR-CFPAYGUID sy-vline 
WA_AVIORRSCOST_STR-KOKRS sy-vline 
WA_AVIORRSCOST_STR-BELNR sy-vline 
WA_AVIORRSCOST_STR-BUZEI sy-vline 
WA_AVIORRSCOST_STR-ISCOSTREVERSED sy-vline 
WA_AVIORRSCOST_STR-REVBELNR sy-vline 
WA_AVIORRSCOST_STR-RSBUKRS sy-vline 
WA_AVIORRSCOST_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.