ABAP Select data from SAP table FAAV_CURTYP_O into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAAV_CURTYP_O
*  INTO TABLE @DATA(IT_FAAV_CURTYP_O2).
*--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_FAAV_CURTYP_O INDEX 1 INTO DATA(WA_FAAV_CURTYP_O2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAAV_CURTYP_O>-MANDT = 1.
<FAAV_CURTYP_O>-BUKRS = 1.
<FAAV_CURTYP_O>-AFABE = 1.
<FAAV_CURTYP_O>-AFAPL = 1.
<FAAV_CURTYP_O>-REP_LEDGER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAAV_CURTYP_O-CURTP, sy-vline,
  WA_FAAV_CURTYP_O-LEAD_AFABE, sy-vline,
  WA_FAAV_CURTYP_O-HSL, sy-vline,
  WA_FAAV_CURTYP_O-KSL, sy-vline,
  WA_FAAV_CURTYP_O-OSL, sy-vline,
  WA_FAAV_CURTYP_O-VSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAAV_CURTYP_O 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_FAAV_CURTYP_O 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_FAAV_CURTYP_O INTO WA_FAAV_CURTYP_O.


*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 ALPHA, internal->external for field REP_LEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_CURTYP_O-REP_LEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_CURTYP_O-REP_LEDGER.
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_FAAV_CURTYP_O_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
AFABE TYPE STRING,
AFAPL TYPE STRING,
REP_LEDGER TYPE STRING,
CURTP TYPE STRING,
LEAD_AFABE TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
OSL TYPE STRING,
VSL TYPE STRING,
BSL TYPE STRING,
CSL TYPE STRING,
DSL TYPE STRING,
ESL TYPE STRING,
FSL TYPE STRING,
GSL TYPE STRING,
AFABE_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAAV_CURTYP_O_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_FAAV_CURTYP_O_STR-MANDT sy-vline 
WA_FAAV_CURTYP_O_STR-BUKRS sy-vline 
WA_FAAV_CURTYP_O_STR-AFABE sy-vline 
WA_FAAV_CURTYP_O_STR-AFAPL sy-vline 
WA_FAAV_CURTYP_O_STR-REP_LEDGER sy-vline 
WA_FAAV_CURTYP_O_STR-CURTP sy-vline 
WA_FAAV_CURTYP_O_STR-LEAD_AFABE sy-vline 
WA_FAAV_CURTYP_O_STR-HSL sy-vline 
WA_FAAV_CURTYP_O_STR-KSL sy-vline 
WA_FAAV_CURTYP_O_STR-OSL sy-vline 
WA_FAAV_CURTYP_O_STR-VSL sy-vline 
WA_FAAV_CURTYP_O_STR-BSL sy-vline 
WA_FAAV_CURTYP_O_STR-CSL sy-vline 
WA_FAAV_CURTYP_O_STR-DSL sy-vline 
WA_FAAV_CURTYP_O_STR-ESL sy-vline 
WA_FAAV_CURTYP_O_STR-FSL sy-vline 
WA_FAAV_CURTYP_O_STR-GSL sy-vline 
WA_FAAV_CURTYP_O_STR-AFABE_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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