ABAP Select data from SAP table SPF01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SPF01 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 SPF01. 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 SPF01 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_SPF01 TYPE STANDARD TABLE OF SPF01,
      WA_SPF01 TYPE SPF01,
      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: <SPF01> TYPE SPF01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SPF01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SPF01
  INTO TABLE IT_SPF01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SPF01
*  INTO TABLE @DATA(IT_SPF012).
*--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_SPF01 INDEX 1 INTO DATA(WA_SPF012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SPF01 ASSIGNING <SPF01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SPF01>-PFNAME = 1.
<SPF01>-TXT = 1.
<SPF01>-VERSION = 1.
<SPF01>-STATUS = 1.
<SPF01>-CREUSER = 1.

ENDLOOP.

LOOP AT IT_SPF01 INTO WA_SPF01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SPF01-USR, sy-vline,
  WA_SPF01-GENUSER, sy-vline,
  WA_SPF01-AENZEIT, sy-vline,
  WA_SPF01-AENDATE, sy-vline,
  WA_SPF01-GENZEIT, sy-vline,
  WA_SPF01-GENDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SPF01 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_SPF01 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_SPF01 INTO WA_SPF01.


*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_SPF01_STR, 
PFNAME TYPE STRING,
TXT TYPE STRING,
VERSION TYPE STRING,
STATUS TYPE STRING,
CREUSER TYPE STRING,
USR TYPE STRING,
GENUSER TYPE STRING,
AENZEIT TYPE STRING,
AENDATE TYPE STRING,
GENZEIT TYPE STRING,
GENDATE TYPE STRING,
GENTARGET TYPE STRING,
GENDATASET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SPF01_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_SPF01_STR-PFNAME sy-vline 
WA_SPF01_STR-TXT sy-vline 
WA_SPF01_STR-VERSION sy-vline 
WA_SPF01_STR-STATUS sy-vline 
WA_SPF01_STR-CREUSER sy-vline 
WA_SPF01_STR-USR sy-vline 
WA_SPF01_STR-GENUSER sy-vline 
WA_SPF01_STR-AENZEIT sy-vline 
WA_SPF01_STR-AENDATE sy-vline 
WA_SPF01_STR-GENZEIT sy-vline 
WA_SPF01_STR-GENDATE sy-vline 
WA_SPF01_STR-GENTARGET sy-vline 
WA_SPF01_STR-GENDATASET sy-vline      INTO ld_text SEPARATED BY SPACE.

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