ABAP Select data from SAP table CWLFCSDOCOCPM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWLFCSDOCOCPM
*  INTO TABLE @DATA(IT_CWLFCSDOCOCPM2).
*--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_CWLFCSDOCOCPM INDEX 1 INTO DATA(WA_CWLFCSDOCOCPM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWLFCSDOCOCPM>-MANDT = 1.
<CWLFCSDOCOCPM>-CUSTSETTLMT = 1.
<CWLFCSDOCOCPM>-SETTLMTDOCCAT = 1.
<CWLFCSDOCOCPM>-SETTLMTCAT = 1.
<CWLFCSDOCOCPM>-SETTLMTMGMTACCTGTRANSFSTS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWLFCSDOCOCPM-BILLTOPARTY, sy-vline,
  WA_CWLFCSDOCOCPM-PAYERPARTY, sy-vline,
  WA_CWLFCSDOCOCPM-SALESORGANIZATION, sy-vline,
  WA_CWLFCSDOCOCPM-DISTRIBUTIONCHANNEL, sy-vline,
  WA_CWLFCSDOCOCPM-DIVISION, sy-vline,
  WA_CWLFCSDOCOCPM-CUSTSETTLMTCOMPANYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWLFCSDOCOCPM 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_CWLFCSDOCOCPM 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_CWLFCSDOCOCPM INTO WA_CWLFCSDOCOCPM.


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

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

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

*Conversion exit ALPHA, internal->external for field CANCLDCUSTSETTLMT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWLFCSDOCOCPM-CANCLDCUSTSETTLMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWLFCSDOCOCPM-CANCLDCUSTSETTLMT.
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_CWLFCSDOCOCPM_STR, 
MANDT TYPE STRING,
CUSTSETTLMT TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTCAT TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTS TYPE STRING,
BILLTOPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
CUSTSETTLMTCOMPANYCODE TYPE STRING,
SETTLMTBUSPROCCAT TYPE STRING,
SETTLMTBUSPROCVAR TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTPROCESSTYPE TYPE STRING,
CNDNCONTRTYPE TYPE STRING,
SETTLMTDATECAT TYPE STRING,
CANCLDCUSTSETTLMT TYPE STRING,
CUSTSETTLMTISCANCELED TYPE STRING,
CNDNCONTRPROCESSCATEGORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWLFCSDOCOCPM_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_CWLFCSDOCOCPM_STR-MANDT sy-vline 
WA_CWLFCSDOCOCPM_STR-CUSTSETTLMT sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTDOCCAT sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTCAT sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTMGMTACCTGTRANSFSTS sy-vline 
WA_CWLFCSDOCOCPM_STR-BILLTOPARTY sy-vline 
WA_CWLFCSDOCOCPM_STR-PAYERPARTY sy-vline 
WA_CWLFCSDOCOCPM_STR-SALESORGANIZATION sy-vline 
WA_CWLFCSDOCOCPM_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CWLFCSDOCOCPM_STR-DIVISION sy-vline 
WA_CWLFCSDOCOCPM_STR-CUSTSETTLMTCOMPANYCODE sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTBUSPROCCAT sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTBUSPROCVAR sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTDOCTYPE sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTPROCESSTYPE sy-vline 
WA_CWLFCSDOCOCPM_STR-CNDNCONTRTYPE sy-vline 
WA_CWLFCSDOCOCPM_STR-SETTLMTDATECAT sy-vline 
WA_CWLFCSDOCOCPM_STR-CANCLDCUSTSETTLMT sy-vline 
WA_CWLFCSDOCOCPM_STR-CUSTSETTLMTISCANCELED sy-vline 
WA_CWLFCSDOCOCPM_STR-CNDNCONTRPROCESSCATEGORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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