ABAP Select data from SAP table CPE_FORMCONV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPE_FORMCONV
*  INTO TABLE @DATA(IT_CPE_FORMCONV2).
*--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_CPE_FORMCONV INDEX 1 INTO DATA(WA_CPE_FORMCONV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPE_FORMCONV>-CLIENT = 1.
<CPE_FORMCONV>-DOCITEMCOND_GUID = 1.
<CPE_FORMCONV>-CONVPLACE = 1.
<CPE_FORMCONV>-FORMID = 1.
<CPE_FORMCONV>-CURRFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPE_FORMCONV-UOMFROM, sy-vline,
  WA_CPE_FORMCONV-CURRTO, sy-vline,
  WA_CPE_FORMCONV-UOMTO, sy-vline,
  WA_CPE_FORMCONV-USEDEXCHRATE, sy-vline,
  WA_CPE_FORMCONV-USEDCURRFROM, sy-vline,
  WA_CPE_FORMCONV-USEDCURRTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPE_FORMCONV 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_CPE_FORMCONV 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_CPE_FORMCONV INTO WA_CPE_FORMCONV.


*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 CUNIT, internal->external for field UOMFROM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPE_FORMCONV-UOMFROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPE_FORMCONV-UOMFROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UOMTO
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPE_FORMCONV-UOMTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPE_FORMCONV-UOMTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field USEDUOMFROM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPE_FORMCONV-USEDUOMFROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPE_FORMCONV-USEDUOMFROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field USEDUOMTO
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPE_FORMCONV-USEDUOMTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPE_FORMCONV-USEDUOMTO.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field QUANCONVROUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPE_FORMCONV-QUANCONVROUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPE_FORMCONV-QUANCONVROUND.
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_CPE_FORMCONV_STR, 
CLIENT TYPE STRING,
DOCITEMCOND_GUID TYPE STRING,
CONVPLACE TYPE STRING,
FORMID TYPE STRING,
CURRFROM TYPE STRING,
UOMFROM TYPE STRING,
CURRTO TYPE STRING,
UOMTO TYPE STRING,
USEDEXCHRATE TYPE STRING,
USEDCURRFROM TYPE STRING,
USEDCURRTO TYPE STRING,
USEDFACTORFROM TYPE STRING,
USEDFACTORFROM_DF34 TYPE STRING,
USEDUOMFROM TYPE STRING,
USEDFACTORTO TYPE STRING,
USEDFACTORTO_DF34 TYPE STRING,
USEDUOMTO TYPE STRING,
FORECAST_STATUS TYPE STRING,
QUAN_ADJ_FACTOR TYPE STRING,
FORMCONVOUT_GUID TYPE STRING,
FORMCONVIN_GUID TYPE STRING,
CONVERSIONRULE TYPE STRING,
FIXEXCHRATE TYPE STRING,
FACTORFROM TYPE STRING,
FACTORTO TYPE STRING,
DEFAULT_CONVERSION_RULE TYPE STRING,
CONVERSIONROUT TYPE STRING,
EXCHRATETYPE TYPE STRING,
EXCHRATEAVG TYPE STRING,
CONVROUND TYPE STRING,
QUANCONVRULE TYPE STRING,
DEFAULT_ROUNDING_RULE_CR TYPE STRING,
ROUNDROUT_CR TYPE STRING,
NUMDECS_CR TYPE STRING,
NUMTENS_CR TYPE STRING,
QUANCONVROUT TYPE STRING,
QUANCONVROUND TYPE STRING,
DEFAULT_ROUNDING_RULE_QCR TYPE STRING,
ROUNDROUT_QCR TYPE STRING,
NUMDECS_QCR TYPE STRING,
NUMTENS_QCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPE_FORMCONV_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_CPE_FORMCONV_STR-CLIENT sy-vline 
WA_CPE_FORMCONV_STR-DOCITEMCOND_GUID sy-vline 
WA_CPE_FORMCONV_STR-CONVPLACE sy-vline 
WA_CPE_FORMCONV_STR-FORMID sy-vline 
WA_CPE_FORMCONV_STR-CURRFROM sy-vline 
WA_CPE_FORMCONV_STR-UOMFROM sy-vline 
WA_CPE_FORMCONV_STR-CURRTO sy-vline 
WA_CPE_FORMCONV_STR-UOMTO sy-vline 
WA_CPE_FORMCONV_STR-USEDEXCHRATE sy-vline 
WA_CPE_FORMCONV_STR-USEDCURRFROM sy-vline 
WA_CPE_FORMCONV_STR-USEDCURRTO sy-vline 
WA_CPE_FORMCONV_STR-USEDFACTORFROM sy-vline 
WA_CPE_FORMCONV_STR-USEDFACTORFROM_DF34 sy-vline 
WA_CPE_FORMCONV_STR-USEDUOMFROM sy-vline 
WA_CPE_FORMCONV_STR-USEDFACTORTO sy-vline 
WA_CPE_FORMCONV_STR-USEDFACTORTO_DF34 sy-vline 
WA_CPE_FORMCONV_STR-USEDUOMTO sy-vline 
WA_CPE_FORMCONV_STR-FORECAST_STATUS sy-vline 
WA_CPE_FORMCONV_STR-QUAN_ADJ_FACTOR sy-vline 
WA_CPE_FORMCONV_STR-FORMCONVOUT_GUID sy-vline 
WA_CPE_FORMCONV_STR-FORMCONVIN_GUID sy-vline 
WA_CPE_FORMCONV_STR-CONVERSIONRULE sy-vline 
WA_CPE_FORMCONV_STR-FIXEXCHRATE sy-vline 
WA_CPE_FORMCONV_STR-FACTORFROM sy-vline 
WA_CPE_FORMCONV_STR-FACTORTO sy-vline 
WA_CPE_FORMCONV_STR-DEFAULT_CONVERSION_RULE sy-vline 
WA_CPE_FORMCONV_STR-CONVERSIONROUT sy-vline 
WA_CPE_FORMCONV_STR-EXCHRATETYPE sy-vline 
WA_CPE_FORMCONV_STR-EXCHRATEAVG sy-vline 
WA_CPE_FORMCONV_STR-CONVROUND sy-vline 
WA_CPE_FORMCONV_STR-QUANCONVRULE sy-vline 
WA_CPE_FORMCONV_STR-DEFAULT_ROUNDING_RULE_CR sy-vline 
WA_CPE_FORMCONV_STR-ROUNDROUT_CR sy-vline 
WA_CPE_FORMCONV_STR-NUMDECS_CR sy-vline 
WA_CPE_FORMCONV_STR-NUMTENS_CR sy-vline 
WA_CPE_FORMCONV_STR-QUANCONVROUT sy-vline 
WA_CPE_FORMCONV_STR-QUANCONVROUND sy-vline 
WA_CPE_FORMCONV_STR-DEFAULT_ROUNDING_RULE_QCR sy-vline 
WA_CPE_FORMCONV_STR-ROUNDROUT_QCR sy-vline 
WA_CPE_FORMCONV_STR-NUMDECS_QCR sy-vline 
WA_CPE_FORMCONV_STR-NUMTENS_QCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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