ABAP Select data from SAP table WLF_S_FDP_SSDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WLF_S_FDP_SSDOC
*  INTO TABLE @DATA(IT_WLF_S_FDP_SSDOC2).
*--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_WLF_S_FDP_SSDOC INDEX 1 INTO DATA(WA_WLF_S_FDP_SSDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WLF_S_FDP_SSDOC>-SUPLRSETTLMT = 1.
<WLF_S_FDP_SSDOC>-SETTLMTDOCTYPE = 1.
<WLF_S_FDP_SSDOC>-SETTLMTDOCTYPEDESC = 1.
<WLF_S_FDP_SSDOC>-SETTLMTDOCCAT = 1.
<WLF_S_FDP_SSDOC>-SETTLMTDOCCATNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WLF_S_FDP_SSDOC-SETTLMTPROCESSTYPE, sy-vline,
  WA_WLF_S_FDP_SSDOC-SETTLMTPROCESSTYPEDESC, sy-vline,
  WA_WLF_S_FDP_SSDOC-INVOICINGPARTY, sy-vline,
  WA_WLF_S_FDP_SSDOC-PAYEEPARTY, sy-vline,
  WA_WLF_S_FDP_SSDOC-DOCUMENTDATE, sy-vline,
  WA_WLF_S_FDP_SSDOC-DOCUMENTREFERENCEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WLF_S_FDP_SSDOC 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_WLF_S_FDP_SSDOC 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_WLF_S_FDP_SSDOC INTO WA_WLF_S_FDP_SSDOC.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SUPLRSETTLMTACCTGDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WLF_S_FDP_SSDOC-SUPLRSETTLMTACCTGDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLF_S_FDP_SSDOC-SUPLRSETTLMTACCTGDOC.
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_WLF_S_FDP_SSDOC_STR, 
SUPLRSETTLMT TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCTYPEDESC TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTDOCCATNAME TYPE STRING,
SETTLMTPROCESSTYPE TYPE STRING,
SETTLMTPROCESSTYPEDESC TYPE STRING,
INVOICINGPARTY TYPE STRING,
PAYEEPARTY TYPE STRING,
DOCUMENTDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
SUPLRSETTLMTCURRENCY TYPE STRING,
SUPPLIERTOTALGROSSAMOUNT TYPE STRING,
SUPPLIERTOTALNETAMOUNT TYPE STRING,
SUPLRTOTELIGIBLEAMTFORCSHDISC TYPE STRING,
CANCLDSUPLRSETTLMT TYPE STRING,
SUPPLIERTOTALTAXAMOUNT TYPE STRING,
SUPPLYINGCOUNTRY TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
SETTLMTRELTDCNDNCONTR TYPE STRING,
SETTLMTDATECAT TYPE STRING,
SETTLMTDATECATNAME TYPE STRING,
ACTUALSETTLMTDATE TYPE STRING,
SETTLMTBUSPROCCAT TYPE STRING,
SETTLMTBUSPROCCATNAME TYPE STRING,
TOTALSETTLMTQUANTITY TYPE STRING,
TOTALSETTLMTQUANTITYUNIT TYPE STRING,
TOTALSETTLMTQTYUNITTECHNAME TYPE STRING,
SETTLMTPERIODSTARTDATE TYPE STRING,
SETTLMTPERIODENDDATE TYPE STRING,
IS_ORIGINAL_OUTPUT TYPE STRING,
DUMMY_WBRK_INCL_EEW_PS TYPE STRING,
DUMMY_WBRK_INCL_EEW_TR TYPE STRING,
SUPLRSETTLMTACCTGDOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WLF_S_FDP_SSDOC_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_WLF_S_FDP_SSDOC_STR-SUPLRSETTLMT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTDOCTYPE sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTDOCTYPEDESC sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTDOCCAT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTDOCCATNAME sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTPROCESSTYPE sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTPROCESSTYPEDESC sy-vline 
WA_WLF_S_FDP_SSDOC_STR-INVOICINGPARTY sy-vline 
WA_WLF_S_FDP_SSDOC_STR-PAYEEPARTY sy-vline 
WA_WLF_S_FDP_SSDOC_STR-DOCUMENTDATE sy-vline 
WA_WLF_S_FDP_SSDOC_STR-DOCUMENTREFERENCEID sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SUPLRSETTLMTCURRENCY sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SUPPLIERTOTALGROSSAMOUNT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SUPPLIERTOTALNETAMOUNT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SUPLRTOTELIGIBLEAMTFORCSHDISC sy-vline 
WA_WLF_S_FDP_SSDOC_STR-CANCLDSUPLRSETTLMT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SUPPLIERTOTALTAXAMOUNT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SUPPLYINGCOUNTRY sy-vline 
WA_WLF_S_FDP_SSDOC_STR-PAYMENTREFERENCE sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTRELTDCNDNCONTR sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTDATECAT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTDATECATNAME sy-vline 
WA_WLF_S_FDP_SSDOC_STR-ACTUALSETTLMTDATE sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTBUSPROCCAT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTBUSPROCCATNAME sy-vline 
WA_WLF_S_FDP_SSDOC_STR-TOTALSETTLMTQUANTITY sy-vline 
WA_WLF_S_FDP_SSDOC_STR-TOTALSETTLMTQUANTITYUNIT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-TOTALSETTLMTQTYUNITTECHNAME sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTPERIODSTARTDATE sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SETTLMTPERIODENDDATE sy-vline 
WA_WLF_S_FDP_SSDOC_STR-IS_ORIGINAL_OUTPUT sy-vline 
WA_WLF_S_FDP_SSDOC_STR-DUMMY_WBRK_INCL_EEW_PS sy-vline 
WA_WLF_S_FDP_SSDOC_STR-DUMMY_WBRK_INCL_EEW_TR sy-vline 
WA_WLF_S_FDP_SSDOC_STR-SUPLRSETTLMTACCTGDOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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