ABAP Select data from SAP table CWLFSDOCLOCPM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWLFSDOCLOCPM
*  INTO TABLE @DATA(IT_CWLFSDOCLOCPM2).
*--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_CWLFSDOCLOCPM INDEX 1 INTO DATA(WA_CWLFSDOCLOCPM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWLFSDOCLOCPM>-MANDT = 1.
<CWLFSDOCLOCPM>-SETTLMTDOCLIST = 1.
<CWLFSDOCLOCPM>-SETTLMTDOCCAT = 1.
<CWLFSDOCLOCPM>-SETTLMTDOCLISTCAT = 1.
<CWLFSDOCLOCPM>-DOCUMENTREFERENCEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWLFSDOCLOCPM-SETTLMTMGMTACCTGTRANSFSTS, sy-vline,
  WA_CWLFSDOCLOCPM-INVOICINGPARTY, sy-vline,
  WA_CWLFSDOCLOCPM-PAYEEPARTY, sy-vline,
  WA_CWLFSDOCLOCPM-BILLTOPARTY, sy-vline,
  WA_CWLFSDOCLOCPM-PAYERPARTY, sy-vline,
  WA_CWLFSDOCLOCPM-PURCHASINGORGANIZATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWLFSDOCLOCPM 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_CWLFSDOCLOCPM 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_CWLFSDOCLOCPM INTO WA_CWLFSDOCLOCPM.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SETTLMTDOCLISTTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWLFSDOCLOCPM-SETTLMTDOCLISTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWLFSDOCLOCPM-SETTLMTDOCLISTTYPE.
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_CWLFSDOCLOCPM_STR, 
MANDT TYPE STRING,
SETTLMTDOCLIST TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTDOCLISTCAT TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTS TYPE STRING,
INVOICINGPARTY TYPE STRING,
PAYEEPARTY TYPE STRING,
BILLTOPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
COMPANYCODE TYPE STRING,
SETTLMTBUSPROCCAT TYPE STRING,
SETTLMTBUSPROCVAR TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
CANCLDSETTLMTDOCLIST TYPE STRING,
SETTLMTDOCLISTISCANCELED TYPE STRING,
SETTLMTDOCLISTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWLFSDOCLOCPM_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_CWLFSDOCLOCPM_STR-MANDT sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTDOCLIST sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTDOCCAT sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTDOCLISTCAT sy-vline 
WA_CWLFSDOCLOCPM_STR-DOCUMENTREFERENCEID sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTMGMTACCTGTRANSFSTS sy-vline 
WA_CWLFSDOCLOCPM_STR-INVOICINGPARTY sy-vline 
WA_CWLFSDOCLOCPM_STR-PAYEEPARTY sy-vline 
WA_CWLFSDOCLOCPM_STR-BILLTOPARTY sy-vline 
WA_CWLFSDOCLOCPM_STR-PAYERPARTY sy-vline 
WA_CWLFSDOCLOCPM_STR-PURCHASINGORGANIZATION sy-vline 
WA_CWLFSDOCLOCPM_STR-PURCHASINGGROUP sy-vline 
WA_CWLFSDOCLOCPM_STR-SALESORGANIZATION sy-vline 
WA_CWLFSDOCLOCPM_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CWLFSDOCLOCPM_STR-DIVISION sy-vline 
WA_CWLFSDOCLOCPM_STR-COMPANYCODE sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTBUSPROCCAT sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTBUSPROCVAR sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTDOCTYPE sy-vline 
WA_CWLFSDOCLOCPM_STR-CANCLDSETTLMTDOCLIST sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTDOCLISTISCANCELED sy-vline 
WA_CWLFSDOCLOCPM_STR-SETTLMTDOCLISTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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