ABAP Select data from SAP table FINSV_IC_CONV_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINSV_IC_CONV_D
*  INTO TABLE @DATA(IT_FINSV_IC_CONV_D2).
*--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_FINSV_IC_CONV_D INDEX 1 INTO DATA(WA_FINSV_IC_CONV_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINSV_IC_CONV_D>-MANDT = 1.
<FINSV_IC_CONV_D>-RLDNR = 1.
<FINSV_IC_CONV_D>-RBUKRS = 1.
<FINSV_IC_CONV_D>-GJAHR = 1.
<FINSV_IC_CONV_D>-BELNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINSV_IC_CONV_D-DOCLN, sy-vline,
  WA_FINSV_IC_CONV_D-POPER, sy-vline,
  WA_FINSV_IC_CONV_D-BUZEI, sy-vline,
  WA_FINSV_IC_CONV_D-RTCUR, sy-vline,
  WA_FINSV_IC_CONV_D-RWCUR, sy-vline,
  WA_FINSV_IC_CONV_D-RHCUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINSV_IC_CONV_D 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_FINSV_IC_CONV_D 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_FINSV_IC_CONV_D INTO WA_FINSV_IC_CONV_D.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINSV_IC_CONV_D-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINSV_IC_CONV_D-RLDNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINSV_IC_CONV_D-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINSV_IC_CONV_D-BELNR.
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_FINSV_IC_CONV_D_STR, 
MANDT TYPE STRING,
RLDNR TYPE STRING,
RBUKRS TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
DOCLN TYPE STRING,
POPER TYPE STRING,
BUZEI TYPE STRING,
RTCUR TYPE STRING,
RWCUR TYPE STRING,
RHCUR TYPE STRING,
RKCUR TYPE STRING,
ROCUR TYPE STRING,
RVCUR TYPE STRING,
RBCUR TYPE STRING,
RCCUR TYPE STRING,
RDCUR TYPE STRING,
RECUR TYPE STRING,
RFCUR TYPE STRING,
RGCUR TYPE STRING,
TSL TYPE STRING,
WSL 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,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
WWERT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINSV_IC_CONV_D_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_FINSV_IC_CONV_D_STR-MANDT sy-vline 
WA_FINSV_IC_CONV_D_STR-RLDNR sy-vline 
WA_FINSV_IC_CONV_D_STR-RBUKRS sy-vline 
WA_FINSV_IC_CONV_D_STR-GJAHR sy-vline 
WA_FINSV_IC_CONV_D_STR-BELNR sy-vline 
WA_FINSV_IC_CONV_D_STR-DOCLN sy-vline 
WA_FINSV_IC_CONV_D_STR-POPER sy-vline 
WA_FINSV_IC_CONV_D_STR-BUZEI sy-vline 
WA_FINSV_IC_CONV_D_STR-RTCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RWCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RHCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RKCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-ROCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RVCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RBCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RCCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RDCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RECUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RFCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-RGCUR sy-vline 
WA_FINSV_IC_CONV_D_STR-TSL sy-vline 
WA_FINSV_IC_CONV_D_STR-WSL sy-vline 
WA_FINSV_IC_CONV_D_STR-HSL sy-vline 
WA_FINSV_IC_CONV_D_STR-KSL sy-vline 
WA_FINSV_IC_CONV_D_STR-OSL sy-vline 
WA_FINSV_IC_CONV_D_STR-VSL sy-vline 
WA_FINSV_IC_CONV_D_STR-BSL sy-vline 
WA_FINSV_IC_CONV_D_STR-CSL sy-vline 
WA_FINSV_IC_CONV_D_STR-DSL sy-vline 
WA_FINSV_IC_CONV_D_STR-ESL sy-vline 
WA_FINSV_IC_CONV_D_STR-FSL sy-vline 
WA_FINSV_IC_CONV_D_STR-GSL sy-vline 
WA_FINSV_IC_CONV_D_STR-BUDAT sy-vline 
WA_FINSV_IC_CONV_D_STR-BLDAT sy-vline 
WA_FINSV_IC_CONV_D_STR-WWERT sy-vline      INTO ld_text SEPARATED BY SPACE.

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