ABAP Select data from SAP table FAGLSKF_OPT_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGLSKF_OPT_FIELDS
*  INTO TABLE @DATA(IT_FAGLSKF_OPT_FIELDS2).
*--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_FAGLSKF_OPT_FIELDS INDEX 1 INTO DATA(WA_FAGLSKF_OPT_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGLSKF_OPT_FIELDS>-MANDT = 1.
<FAGLSKF_OPT_FIELDS>-AUFNR = 1.
<FAGLSKF_OPT_FIELDS>-GEBER = 1.
<FAGLSKF_OPT_FIELDS>-PGEBER = 1.
<FAGLSKF_OPT_FIELDS>-GRANT_NBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGLSKF_OPT_FIELDS-PGRANT_NBR, sy-vline,
  WA_FAGLSKF_OPT_FIELDS-GRIRG, sy-vline,
  WA_FAGLSKF_OPT_FIELDS-HRKFT, sy-vline,
  WA_FAGLSKF_OPT_FIELDS-MEASURE, sy-vline,
  WA_FAGLSKF_OPT_FIELDS-PRZNR, sy-vline,
  WA_FAGLSKF_OPT_FIELDS-PS_PSP_PNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGLSKF_OPT_FIELDS 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_FAGLSKF_OPT_FIELDS 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_FAGLSKF_OPT_FIELDS INTO WA_FAGLSKF_OPT_FIELDS.


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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_OPT_FIELDS-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_OPT_FIELDS-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PSEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGLSKF_OPT_FIELDS-PSEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGLSKF_OPT_FIELDS-PSEGMENT.
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_FAGLSKF_OPT_FIELDS_STR, 
MANDT TYPE STRING,
AUFNR TYPE STRING,
GEBER TYPE STRING,
PGEBER TYPE STRING,
GRANT_NBR TYPE STRING,
PGRANT_NBR TYPE STRING,
GRIRG TYPE STRING,
HRKFT TYPE STRING,
MEASURE TYPE STRING,
PRZNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
WERKS TYPE STRING,
FISTL TYPE STRING,
KOSTL TYPE STRING,
PKOSTL TYPE STRING,
PRCTR TYPE STRING,
PPRCTR TYPE STRING,
SEGMENT TYPE STRING,
PSEGMENT TYPE STRING,
KOKRS TYPE STRING,
FIKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGLSKF_OPT_FIELDS_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_FAGLSKF_OPT_FIELDS_STR-MANDT sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-AUFNR sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-GEBER sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PGEBER sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-GRANT_NBR sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PGRANT_NBR sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-GRIRG sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-HRKFT sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-MEASURE sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PRZNR sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PS_PSP_PNR sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-WERKS sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-FISTL sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-KOSTL sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PKOSTL sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PRCTR sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PPRCTR sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-SEGMENT sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-PSEGMENT sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-KOKRS sy-vline 
WA_FAGLSKF_OPT_FIELDS_STR-FIKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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