ABAP Select data from SAP table CCHFIEXCSTCALOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCHFIEXCSTCALOC
*  INTO TABLE @DATA(IT_CCHFIEXCSTCALOC2).
*--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_CCHFIEXCSTCALOC INDEX 1 INTO DATA(WA_CCHFIEXCSTCALOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCHFIEXCSTCALOC>-MANDT = 1.
<CCHFIEXCSTCALOC>-EXTENSIBILITYSCENARIOID = 1.
<CCHFIEXCSTCALOC>-CHARACTERISTIC = 1.
<CCHFIEXCSTCALOC>-EXTENSIBILITYCUSTOMFIELD = 1.
<CCHFIEXCSTCALOC>-CHARACTERISTICFOED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCHFIEXCSTCALOC-EXTENSIBILITYCUSTOMFIELDFOED, sy-vline,
  WA_CCHFIEXCSTCALOC-EXTENSIBILITYSTATUS, sy-vline,
  WA_CCHFIEXCSTCALOC-DESCRIPTION, sy-vline,
  WA_CCHFIEXCSTCALOC-CRITICALITY, sy-vline,
  WA_CCHFIEXCSTCALOC-EXTENSIBILITYREPUBLISH, sy-vline,
  WA_CCHFIEXCSTCALOC-EXTENSIBILITYRELOAD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCHFIEXCSTCALOC 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_CCHFIEXCSTCALOC 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_CCHFIEXCSTCALOC INTO WA_CCHFIEXCSTCALOC.


*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 CHARCVALUEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCHFIEXCSTCALOC-CHARCVALUEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCHFIEXCSTCALOC-CHARCVALUEUNIT.
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_CCHFIEXCSTCALOC_STR, 
MANDT TYPE STRING,
EXTENSIBILITYSCENARIOID TYPE STRING,
CHARACTERISTIC TYPE STRING,
EXTENSIBILITYCUSTOMFIELD TYPE STRING,
CHARACTERISTICFOED TYPE STRING,
EXTENSIBILITYCUSTOMFIELDFOED TYPE STRING,
EXTENSIBILITYSTATUS TYPE STRING,
DESCRIPTION TYPE STRING,
CRITICALITY TYPE STRING,
EXTENSIBILITYREPUBLISH TYPE STRING,
EXTENSIBILITYRELOAD TYPE STRING,
EXTENSIBILITYCUSTOMFIELDTYPE TYPE STRING,
EXTENSIBILITYCUSTOMFIELDLENGTH TYPE STRING,
EXTENSIBILITYCUSTOMFIELDSCALE TYPE STRING,
EXTENSIBILITYCUSTOMFLDAGGRGN TYPE STRING,
EXTENSIBILITYCSTMFLDCRTEDBYUSR TYPE STRING,
EXTENSIBILITYCSTMFLDCRTEDONDTE TYPE STRING,
EXTENSIBILITYCSTMFLDCRTEDATTME TYPE STRING,
EXTNBLTYCSTMFLDLASTCHGDBYUSR TYPE STRING,
EXTNBLTYCSTMFLDLASTCHGDONDTE TYPE STRING,
EXTNBLTYCSTMFLDLASTCHGDATTME TYPE STRING,
CHARCDATATYPE TYPE STRING,
CHARCLENGTH TYPE STRING,
CHARCDECIMALS TYPE STRING,
CHARCVALUEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCHFIEXCSTCALOC_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_CCHFIEXCSTCALOC_STR-MANDT sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYSCENARIOID sy-vline 
WA_CCHFIEXCSTCALOC_STR-CHARACTERISTIC sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCUSTOMFIELD sy-vline 
WA_CCHFIEXCSTCALOC_STR-CHARACTERISTICFOED sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCUSTOMFIELDFOED sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYSTATUS sy-vline 
WA_CCHFIEXCSTCALOC_STR-DESCRIPTION sy-vline 
WA_CCHFIEXCSTCALOC_STR-CRITICALITY sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYREPUBLISH sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYRELOAD sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCUSTOMFIELDTYPE sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCUSTOMFIELDLENGTH sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCUSTOMFIELDSCALE sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCUSTOMFLDAGGRGN sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCSTMFLDCRTEDBYUSR sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCSTMFLDCRTEDONDTE sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTENSIBILITYCSTMFLDCRTEDATTME sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTNBLTYCSTMFLDLASTCHGDBYUSR sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTNBLTYCSTMFLDLASTCHGDONDTE sy-vline 
WA_CCHFIEXCSTCALOC_STR-EXTNBLTYCSTMFLDLASTCHGDATTME sy-vline 
WA_CCHFIEXCSTCALOC_STR-CHARCDATATYPE sy-vline 
WA_CCHFIEXCSTCALOC_STR-CHARCLENGTH sy-vline 
WA_CCHFIEXCSTCALOC_STR-CHARCDECIMALS sy-vline 
WA_CCHFIEXCSTCALOC_STR-CHARCVALUEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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