ABAP Select data from SAP table CVTIFHA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CVTIFHA
*  INTO TABLE @DATA(IT_CVTIFHA2).
*--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_CVTIFHA INDEX 1 INTO DATA(WA_CVTIFHA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CVTIFHA>-MANDT = 1.
<CVTIFHA>-RFHA = 1.
<CVTIFHA>-CRUSER = 1.
<CVTIFHA>-DCRDAT = 1.
<CVTIFHA>-TCRTIM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CVTIFHA-UPUSER, sy-vline,
  WA_CVTIFHA-DUPDAT, sy-vline,
  WA_CVTIFHA-TUPTIM, sy-vline,
  WA_CVTIFHA-RANTYP, sy-vline,
  WA_CVTIFHA-SANLF, sy-vline,
  WA_CVTIFHA-SFGTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CVTIFHA 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_CVTIFHA 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_CVTIFHA INTO WA_CVTIFHA.


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

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

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

*Conversion exit ALPHA, internal->external for field VRFHA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CVTIFHA-VRFHA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CVTIFHA-VRFHA.
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_CVTIFHA_STR, 
MANDT TYPE STRING,
RFHA TYPE STRING,
CRUSER TYPE STRING,
DCRDAT TYPE STRING,
TCRTIM TYPE STRING,
UPUSER TYPE STRING,
DUPDAT TYPE STRING,
TUPTIM TYPE STRING,
RANTYP TYPE STRING,
SANLF TYPE STRING,
SFGTYP TYPE STRING,
SGSART TYPE STRING,
SFHAART TYPE STRING,
RGATT TYPE STRING,
RFHAZUNR TYPE STRING,
RFHAZUL TYPE STRING,
SAKTIV TYPE STRING,
KONTRH TYPE STRING,
SROLEXT TYPE STRING,
RREFKONT TYPE STRING,
RREFKONT2 TYPE STRING,
RPORTB TYPE STRING,
WGSCHFT TYPE STRING,
WGSCHFT1 TYPE STRING,
WGSCHFT2 TYPE STRING,
AMTINPUT TYPE STRING,
DBLFZ TYPE STRING,
SKALID TYPE STRING,
SKALID2 TYPE STRING,
JLIMIT TYPE STRING,
AKUEND TYPE STRING,
SKUEND TYPE STRING,
OBJNR TYPE STRING,
BUKRS TYPE STRING,
RLDEPO TYPE STRING,
ZUONR TYPE STRING,
DELFZ TYPE STRING,
ABWTYP TYPE STRING,
VRFHA TYPE STRING,
SINCLBE TYPE STRING,
RCOMVALCL TYPE STRING,
ROLLOVERFL TYPE STRING,
COMMODITY_ID TYPE STRING,
FIMA_CALCULATION TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CVTIFHA_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_CVTIFHA_STR-MANDT sy-vline 
WA_CVTIFHA_STR-RFHA sy-vline 
WA_CVTIFHA_STR-CRUSER sy-vline 
WA_CVTIFHA_STR-DCRDAT sy-vline 
WA_CVTIFHA_STR-TCRTIM sy-vline 
WA_CVTIFHA_STR-UPUSER sy-vline 
WA_CVTIFHA_STR-DUPDAT sy-vline 
WA_CVTIFHA_STR-TUPTIM sy-vline 
WA_CVTIFHA_STR-RANTYP sy-vline 
WA_CVTIFHA_STR-SANLF sy-vline 
WA_CVTIFHA_STR-SFGTYP sy-vline 
WA_CVTIFHA_STR-SGSART sy-vline 
WA_CVTIFHA_STR-SFHAART sy-vline 
WA_CVTIFHA_STR-RGATT sy-vline 
WA_CVTIFHA_STR-RFHAZUNR sy-vline 
WA_CVTIFHA_STR-RFHAZUL sy-vline 
WA_CVTIFHA_STR-SAKTIV sy-vline 
WA_CVTIFHA_STR-KONTRH sy-vline 
WA_CVTIFHA_STR-SROLEXT sy-vline 
WA_CVTIFHA_STR-RREFKONT sy-vline 
WA_CVTIFHA_STR-RREFKONT2 sy-vline 
WA_CVTIFHA_STR-RPORTB sy-vline 
WA_CVTIFHA_STR-WGSCHFT sy-vline 
WA_CVTIFHA_STR-WGSCHFT1 sy-vline 
WA_CVTIFHA_STR-WGSCHFT2 sy-vline 
WA_CVTIFHA_STR-AMTINPUT sy-vline 
WA_CVTIFHA_STR-DBLFZ sy-vline 
WA_CVTIFHA_STR-SKALID sy-vline 
WA_CVTIFHA_STR-SKALID2 sy-vline 
WA_CVTIFHA_STR-JLIMIT sy-vline 
WA_CVTIFHA_STR-AKUEND sy-vline 
WA_CVTIFHA_STR-SKUEND sy-vline 
WA_CVTIFHA_STR-OBJNR sy-vline 
WA_CVTIFHA_STR-BUKRS sy-vline 
WA_CVTIFHA_STR-RLDEPO sy-vline 
WA_CVTIFHA_STR-ZUONR sy-vline 
WA_CVTIFHA_STR-DELFZ sy-vline 
WA_CVTIFHA_STR-ABWTYP sy-vline 
WA_CVTIFHA_STR-VRFHA sy-vline 
WA_CVTIFHA_STR-SINCLBE sy-vline 
WA_CVTIFHA_STR-RCOMVALCL sy-vline 
WA_CVTIFHA_STR-ROLLOVERFL sy-vline 
WA_CVTIFHA_STR-COMMODITY_ID sy-vline 
WA_CVTIFHA_STR-FIMA_CALCULATION sy-vline 
WA_CVTIFHA_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.