ABAP Select data from SAP table FIARQAD_CRV_LT 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_LT 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_LT. 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_LT 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_LT TYPE STANDARD TABLE OF FIARQAD_CRV_LT,
      WA_FIARQAD_CRV_LT TYPE FIARQAD_CRV_LT,
      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_LT> TYPE FIARQAD_CRV_LT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIARQAD_CRV_LT
*  INTO TABLE @DATA(IT_FIARQAD_CRV_LT2).
*--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_LT INDEX 1 INTO DATA(WA_FIARQAD_CRV_LT2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIARQAD_CRV_LT-REBZJC, sy-vline,
  WA_FIARQAD_CRV_LT-VERSN, sy-vline,
  WA_FIARQAD_CRV_LT-REBZJI, sy-vline,
  WA_FIARQAD_CRV_LT-BELNRI, sy-vline,
  WA_FIARQAD_CRV_LT-REBZZI, sy-vline,
  WA_FIARQAD_CRV_LT-KOART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIARQAD_CRV_LT 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_LT 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_LT INTO WA_FIARQAD_CRV_LT.


*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_LT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_LT-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_LT-CLREFNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_LT-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_LT-BELNRC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_LT-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_LT-REBZJC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_LT-REBZJC.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FIARQAD_CRV_LT-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_LT-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FIARQAD_CRV_LT-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIARQAD_CRV_LT-DMBTR.
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_LT_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
CLREFNO TYPE STRING,
BELNRC TYPE STRING,
REBZJC TYPE STRING,
VERSN TYPE STRING,
REBZJI TYPE STRING,
BELNRI TYPE STRING,
REBZZI TYPE STRING,
KOART TYPE STRING,
WRBTR TYPE STRING,
DMBTR TYPE STRING,
REMARKTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIARQAD_CRV_LT_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_LT_STR-MANDT sy-vline 
WA_FIARQAD_CRV_LT_STR-BUKRS sy-vline 
WA_FIARQAD_CRV_LT_STR-GJAHR sy-vline 
WA_FIARQAD_CRV_LT_STR-CLREFNO sy-vline 
WA_FIARQAD_CRV_LT_STR-BELNRC sy-vline 
WA_FIARQAD_CRV_LT_STR-REBZJC sy-vline 
WA_FIARQAD_CRV_LT_STR-VERSN sy-vline 
WA_FIARQAD_CRV_LT_STR-REBZJI sy-vline 
WA_FIARQAD_CRV_LT_STR-BELNRI sy-vline 
WA_FIARQAD_CRV_LT_STR-REBZZI sy-vline 
WA_FIARQAD_CRV_LT_STR-KOART sy-vline 
WA_FIARQAD_CRV_LT_STR-WRBTR sy-vline 
WA_FIARQAD_CRV_LT_STR-DMBTR sy-vline 
WA_FIARQAD_CRV_LT_STR-REMARKTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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