ABAP Select data from SAP table FIARQAD_CRV_HD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIARQAD_CRV_HD
*  INTO TABLE @DATA(IT_FIARQAD_CRV_HD2).
*--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_FIARQAD_CRV_HD INDEX 1 INTO DATA(WA_FIARQAD_CRV_HD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIARQAD_CRV_HD>-MANDT = 1.
<FIARQAD_CRV_HD>-BUKRS = 1.
<FIARQAD_CRV_HD>-GJAHR = 1.
<FIARQAD_CRV_HD>-CLREFNO = 1.
<FIARQAD_CRV_HD>-BELNRC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIARQAD_CRV_HD-REBZJC, sy-vline,
  WA_FIARQAD_CRV_HD-VERSN, sy-vline,
  WA_FIARQAD_CRV_HD-WAERS, sy-vline,
  WA_FIARQAD_CRV_HD-BELNRR, sy-vline,
  WA_FIARQAD_CRV_HD-REBZJR, sy-vline,
  WA_FIARQAD_CRV_HD-RVSTAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIARQAD_CRV_HD 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_FIARQAD_CRV_HD 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_FIARQAD_CRV_HD INTO WA_FIARQAD_CRV_HD.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIARQAD_CRV_HD-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_HD-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field REBZJC
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIARQAD_CRV_HD-REBZJC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_HD-REBZJC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field REBZJR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIARQAD_CRV_HD-REBZJR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_HD-REBZJR.
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_FIARQAD_CRV_HD_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
CLREFNO TYPE STRING,
BELNRC TYPE STRING,
REBZJC TYPE STRING,
VERSN TYPE STRING,
WAERS TYPE STRING,
BELNRR TYPE STRING,
REBZJR TYPE STRING,
RVSTAT TYPE STRING,
BUDAT TYPE STRING,
USNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIARQAD_CRV_HD_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_FIARQAD_CRV_HD_STR-MANDT sy-vline 
WA_FIARQAD_CRV_HD_STR-BUKRS sy-vline 
WA_FIARQAD_CRV_HD_STR-GJAHR sy-vline 
WA_FIARQAD_CRV_HD_STR-CLREFNO sy-vline 
WA_FIARQAD_CRV_HD_STR-BELNRC sy-vline 
WA_FIARQAD_CRV_HD_STR-REBZJC sy-vline 
WA_FIARQAD_CRV_HD_STR-VERSN sy-vline 
WA_FIARQAD_CRV_HD_STR-WAERS sy-vline 
WA_FIARQAD_CRV_HD_STR-BELNRR sy-vline 
WA_FIARQAD_CRV_HD_STR-REBZJR sy-vline 
WA_FIARQAD_CRV_HD_STR-RVSTAT sy-vline 
WA_FIARQAD_CRV_HD_STR-BUDAT sy-vline 
WA_FIARQAD_CRV_HD_STR-USNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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