ABAP Select data from SAP table CWLFSETDOCS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWLFSETDOCS
*  INTO TABLE @DATA(IT_CWLFSETDOCS2).
*--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_CWLFSETDOCS INDEX 1 INTO DATA(WA_CWLFSETDOCS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWLFSETDOCS>-MANDT = 1.
<CWLFSETDOCS>-SETTLMTDOC = 1.
<CWLFSETDOCS>-SETTLMTDOCTYPE = 1.
<CWLFSETDOCS>-SETTLMTDOCTYPEDESC = 1.
<CWLFSETDOCS>-BILLTOPARTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWLFSETDOCS-BILLTOPARTYNAME, sy-vline,
  WA_CWLFSETDOCS-SETTLMTMGMTACCTGTRANSFSTS, sy-vline,
  WA_CWLFSETDOCS-SETTLMTMGMTACCTGTRANSFSTSNAME, sy-vline,
  WA_CWLFSETDOCS-CONDITIONCONTRACT, sy-vline,
  WA_CWLFSETDOCS-TOTALNETAMOUNT, sy-vline,
  WA_CWLFSETDOCS-TOTALGROSSAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWLFSETDOCS 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_CWLFSETDOCS 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_CWLFSETDOCS INTO WA_CWLFSETDOCS.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PAYERPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWLFSETDOCS-PAYERPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWLFSETDOCS-PAYERPARTY.
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_CWLFSETDOCS_STR, 
MANDT TYPE STRING,
SETTLMTDOC TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCTYPEDESC TYPE STRING,
BILLTOPARTY TYPE STRING,
BILLTOPARTYNAME TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTS TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTSNAME TYPE STRING,
CONDITIONCONTRACT TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
TOTALGROSSAMOUNT TYPE STRING,
SETTLMTDOCCURRENCY TYPE STRING,
POSTINGDATE TYPE STRING,
ALTERNATIVEINVOICINGPARTY TYPE STRING,
CUSTSETTLMTCOMPANYCODE TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
INVOICINGPARTY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PAYEEPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
SUPLRSETTLMTCOMPANYCODE TYPE STRING,
SALESORGANIZATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWLFSETDOCS_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_CWLFSETDOCS_STR-MANDT sy-vline 
WA_CWLFSETDOCS_STR-SETTLMTDOC sy-vline 
WA_CWLFSETDOCS_STR-SETTLMTDOCTYPE sy-vline 
WA_CWLFSETDOCS_STR-SETTLMTDOCTYPEDESC sy-vline 
WA_CWLFSETDOCS_STR-BILLTOPARTY sy-vline 
WA_CWLFSETDOCS_STR-BILLTOPARTYNAME sy-vline 
WA_CWLFSETDOCS_STR-SETTLMTMGMTACCTGTRANSFSTS sy-vline 
WA_CWLFSETDOCS_STR-SETTLMTMGMTACCTGTRANSFSTSNAME sy-vline 
WA_CWLFSETDOCS_STR-CONDITIONCONTRACT sy-vline 
WA_CWLFSETDOCS_STR-TOTALNETAMOUNT sy-vline 
WA_CWLFSETDOCS_STR-TOTALGROSSAMOUNT sy-vline 
WA_CWLFSETDOCS_STR-SETTLMTDOCCURRENCY sy-vline 
WA_CWLFSETDOCS_STR-POSTINGDATE sy-vline 
WA_CWLFSETDOCS_STR-ALTERNATIVEINVOICINGPARTY sy-vline 
WA_CWLFSETDOCS_STR-CUSTSETTLMTCOMPANYCODE sy-vline 
WA_CWLFSETDOCS_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CWLFSETDOCS_STR-DIVISION sy-vline 
WA_CWLFSETDOCS_STR-INVOICINGPARTY sy-vline 
WA_CWLFSETDOCS_STR-PURCHASINGORGANIZATION sy-vline 
WA_CWLFSETDOCS_STR-PURCHASINGGROUP sy-vline 
WA_CWLFSETDOCS_STR-PAYEEPARTY sy-vline 
WA_CWLFSETDOCS_STR-PAYERPARTY sy-vline 
WA_CWLFSETDOCS_STR-SUPLRSETTLMTCOMPANYCODE sy-vline 
WA_CWLFSETDOCS_STR-SALESORGANIZATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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