ABAP Select data from SAP table SPCFILE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SPCFILE 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 SPCFILE. 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 SPCFILE 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_SPCFILE TYPE STANDARD TABLE OF SPCFILE,
      WA_SPCFILE TYPE SPCFILE,
      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: <SPCFILE> TYPE SPCFILE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPCFILE
*  INTO TABLE @DATA(IT_SPCFILE2).
*--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_SPCFILE INDEX 1 INTO DATA(WA_SPCFILE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPCFILE>-MANDT = 1.
<SPCFILE>-VERSION = 1.
<SPCFILE>-MESTYP = 1.
<SPCFILE>-MESFCT = 1.
<SPCFILE>-MESCOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPCFILE-FIELDS, sy-vline,
  WA_SPCFILE-CATEGORY, sy-vline,
  WA_SPCFILE-SEQUENCE, sy-vline,
  WA_SPCFILE-BLANK, sy-vline,
  WA_SPCFILE-OCCURANCE, sy-vline,
  WA_SPCFILE-RELATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPCFILE 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_SPCFILE 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_SPCFILE INTO WA_SPCFILE.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_SPCFILE_STR, 
MANDT TYPE STRING,
VERSION TYPE STRING,
MESTYP TYPE STRING,
MESFCT TYPE STRING,
MESCOD TYPE STRING,
FIELDS TYPE STRING,
CATEGORY TYPE STRING,
SEQUENCE TYPE STRING,
BLANK TYPE STRING,
OCCURANCE TYPE STRING,
RELATION TYPE STRING,
REL_FLAG TYPE STRING,
LINE_FLAG TYPE STRING,
SLASH_FLAG TYPE STRING,
TEI_FLAG TYPE STRING,
SBRTN TYPE STRING,
DESCP TYPE STRING,
MESSAGE TYPE STRING,
SEGNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPCFILE_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_SPCFILE_STR-MANDT sy-vline 
WA_SPCFILE_STR-VERSION sy-vline 
WA_SPCFILE_STR-MESTYP sy-vline 
WA_SPCFILE_STR-MESFCT sy-vline 
WA_SPCFILE_STR-MESCOD sy-vline 
WA_SPCFILE_STR-FIELDS sy-vline 
WA_SPCFILE_STR-CATEGORY sy-vline 
WA_SPCFILE_STR-SEQUENCE sy-vline 
WA_SPCFILE_STR-BLANK sy-vline 
WA_SPCFILE_STR-OCCURANCE sy-vline 
WA_SPCFILE_STR-RELATION sy-vline 
WA_SPCFILE_STR-REL_FLAG sy-vline 
WA_SPCFILE_STR-LINE_FLAG sy-vline 
WA_SPCFILE_STR-SLASH_FLAG sy-vline 
WA_SPCFILE_STR-TEI_FLAG sy-vline 
WA_SPCFILE_STR-SBRTN sy-vline 
WA_SPCFILE_STR-DESCP sy-vline 
WA_SPCFILE_STR-MESSAGE sy-vline 
WA_SPCFILE_STR-SEGNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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