ABAP Select data from SAP table WLF_S_FDP_ESDOC 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_ESDOC 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_ESDOC. 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_ESDOC 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_ESDOC TYPE STANDARD TABLE OF WLF_S_FDP_ESDOC,
      WA_WLF_S_FDP_ESDOC TYPE WLF_S_FDP_ESDOC,
      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_ESDOC> TYPE WLF_S_FDP_ESDOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WLF_S_FDP_ESDOC
*  INTO TABLE @DATA(IT_WLF_S_FDP_ESDOC2).
*--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_ESDOC INDEX 1 INTO DATA(WA_WLF_S_FDP_ESDOC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WLF_S_FDP_ESDOC-SETTLMTPROCESSTYPE, sy-vline,
  WA_WLF_S_FDP_ESDOC-SETTLMTPROCESSTYPEDESC, sy-vline,
  WA_WLF_S_FDP_ESDOC-BILLTOPARTY, sy-vline,
  WA_WLF_S_FDP_ESDOC-PAYERPARTY, sy-vline,
  WA_WLF_S_FDP_ESDOC-DOCUMENTDATE, sy-vline,
  WA_WLF_S_FDP_ESDOC-DOCUMENTREFERENCEID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WLF_S_FDP_ESDOC 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_ESDOC 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_ESDOC INTO WA_WLF_S_FDP_ESDOC.


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

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

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

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

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

*Conversion exit EXCRT, internal->external for field EXCHANGERATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_WLF_S_FDP_ESDOC-EXCHANGERATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLF_S_FDP_ESDOC-EXCHANGERATE.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field EXPNSETTLMTACCTGDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WLF_S_FDP_ESDOC-EXPNSETTLMTACCTGDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLF_S_FDP_ESDOC-EXPNSETTLMTACCTGDOC.
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_ESDOC_STR, 
EXPNSETTLMT TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCTYPEDESC TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTDOCCATNAME TYPE STRING,
SETTLMTPROCESSTYPE TYPE STRING,
SETTLMTPROCESSTYPEDESC TYPE STRING,
BILLTOPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
DOCUMENTDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
EXPNSETTLMTCURRENCY TYPE STRING,
CUSTOMERTOTALGROSSAMOUNT TYPE STRING,
CUSTOMERTOTALNETAMOUNT TYPE STRING,
CUSTTOTELIGIBLEAMTFORCSHDISC TYPE STRING,
CANCLDEXPNSETTLMT TYPE STRING,
CUSTOMERTOTALTAXAMOUNT TYPE STRING,
SETTLMTDOCACTIVITYREASON TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
SETTLMTRELTDTRDGCONTR TYPE STRING,
SETTLMTBUSPROCCAT TYPE STRING,
SETTLMTBUSPROCCATNAME TYPE STRING,
SETTLMTBUSPROCVAR TYPE STRING,
SETTLMTBUSPROCVARNAME TYPE STRING,
EXCHANGERATE TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
TRDGEXPNAMOUNT TYPE STRING,
TRDGEXPNCURRENCY TYPE STRING,
TRDGEXPNCUSTOMER TYPE STRING,
TRDGEXPNDOCSETTLED TYPE STRING,
TRDGEXPNSETTLMTDOC TYPE STRING,
IS_ORIGINAL_OUTPUT TYPE STRING,
DUMMY_WBRK_INCL_EEW_PS TYPE STRING,
DUMMY_WBRK_INCL_EEW_TR TYPE STRING,
EXPNSETTLMTACCTGDOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WLF_S_FDP_ESDOC_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_ESDOC_STR-EXPNSETTLMT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTDOCTYPE sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTDOCTYPEDESC sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTDOCCAT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTDOCCATNAME sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTPROCESSTYPE sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTPROCESSTYPEDESC sy-vline 
WA_WLF_S_FDP_ESDOC_STR-BILLTOPARTY sy-vline 
WA_WLF_S_FDP_ESDOC_STR-PAYERPARTY sy-vline 
WA_WLF_S_FDP_ESDOC_STR-DOCUMENTDATE sy-vline 
WA_WLF_S_FDP_ESDOC_STR-DOCUMENTREFERENCEID sy-vline 
WA_WLF_S_FDP_ESDOC_STR-EXPNSETTLMTCURRENCY sy-vline 
WA_WLF_S_FDP_ESDOC_STR-CUSTOMERTOTALGROSSAMOUNT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-CUSTOMERTOTALNETAMOUNT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-CUSTTOTELIGIBLEAMTFORCSHDISC sy-vline 
WA_WLF_S_FDP_ESDOC_STR-CANCLDEXPNSETTLMT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-CUSTOMERTOTALTAXAMOUNT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTDOCACTIVITYREASON sy-vline 
WA_WLF_S_FDP_ESDOC_STR-PAYMENTREFERENCE sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTRELTDTRDGCONTR sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTBUSPROCCAT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTBUSPROCCATNAME sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTBUSPROCVAR sy-vline 
WA_WLF_S_FDP_ESDOC_STR-SETTLMTBUSPROCVARNAME sy-vline 
WA_WLF_S_FDP_ESDOC_STR-EXCHANGERATE sy-vline 
WA_WLF_S_FDP_ESDOC_STR-EXCHANGERATEDATE sy-vline 
WA_WLF_S_FDP_ESDOC_STR-TRDGEXPNAMOUNT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-TRDGEXPNCURRENCY sy-vline 
WA_WLF_S_FDP_ESDOC_STR-TRDGEXPNCUSTOMER sy-vline 
WA_WLF_S_FDP_ESDOC_STR-TRDGEXPNDOCSETTLED sy-vline 
WA_WLF_S_FDP_ESDOC_STR-TRDGEXPNSETTLMTDOC sy-vline 
WA_WLF_S_FDP_ESDOC_STR-IS_ORIGINAL_OUTPUT sy-vline 
WA_WLF_S_FDP_ESDOC_STR-DUMMY_WBRK_INCL_EEW_PS sy-vline 
WA_WLF_S_FDP_ESDOC_STR-DUMMY_WBRK_INCL_EEW_TR sy-vline 
WA_WLF_S_FDP_ESDOC_STR-EXPNSETTLMTACCTGDOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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