ABAP Select data from SAP table CWFPERSONPAYOPGN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWFPERSONPAYOPGN
*  INTO TABLE @DATA(IT_CWFPERSONPAYOPGN2).
*--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_CWFPERSONPAYOPGN INDEX 1 INTO DATA(WA_CWFPERSONPAYOPGN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWFPERSONPAYOPGN>-MANDT = 1.
<CWFPERSONPAYOPGN>-EMPLOYEEINTERNALID = 1.
<CWFPERSONPAYOPGN>-VALIDITYSTARTDATE = 1.
<CWFPERSONPAYOPGN>-BANKIDENTIFICATION = 1.
<CWFPERSONPAYOPGN>-PAYMENTMETHODSLIST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWFPERSONPAYOPGN-EMPLOYMENTINTERNALID, sy-vline,
  WA_CWFPERSONPAYOPGN-VALIDITYENDDATE, sy-vline,
  WA_CWFPERSONPAYOPGN-PERSONEXTERNALID, sy-vline,
  WA_CWFPERSONPAYOPGN-BANKACCOUNTHOLDERNAME, sy-vline,
  WA_CWFPERSONPAYOPGN-BANKACCOUNTNAME, sy-vline,
  WA_CWFPERSONPAYOPGN-BANKCONTROLKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWFPERSONPAYOPGN 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_CWFPERSONPAYOPGN 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_CWFPERSONPAYOPGN INTO WA_CWFPERSONPAYOPGN.


*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 EMPLOYEEINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWFPERSONPAYOPGN-EMPLOYEEINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWFPERSONPAYOPGN-EMPLOYEEINTERNALID.
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_CWFPERSONPAYOPGN_STR, 
MANDT TYPE STRING,
EMPLOYEEINTERNALID TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
BANKIDENTIFICATION TYPE STRING,
PAYMENTMETHODSLIST TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
VALIDITYENDDATE TYPE STRING,
PERSONEXTERNALID TYPE STRING,
BANKACCOUNTHOLDERNAME TYPE STRING,
BANKACCOUNTNAME TYPE STRING,
BANKCONTROLKEY TYPE STRING,
BANKCOUNTRYKEY TYPE STRING,
BANK TYPE STRING,
BANKNAME TYPE STRING,
BANKACCOUNT TYPE STRING,
IBAN TYPE STRING,
COMPANYCODE TYPE STRING,
SWIFTCODE TYPE STRING,
WRKFRCPAYMENTMETHOD TYPE STRING,
WRKFRCPAYMENTCURRENCY TYPE STRING,
BANKREFERENCE TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
WORKFORCEAUTHORIZATIONGROUP TYPE STRING,
BPBANKISPROTECTED TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWFPERSONPAYOPGN_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_CWFPERSONPAYOPGN_STR-MANDT sy-vline 
WA_CWFPERSONPAYOPGN_STR-EMPLOYEEINTERNALID sy-vline 
WA_CWFPERSONPAYOPGN_STR-VALIDITYSTARTDATE sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKIDENTIFICATION sy-vline 
WA_CWFPERSONPAYOPGN_STR-PAYMENTMETHODSLIST sy-vline 
WA_CWFPERSONPAYOPGN_STR-EMPLOYMENTINTERNALID sy-vline 
WA_CWFPERSONPAYOPGN_STR-VALIDITYENDDATE sy-vline 
WA_CWFPERSONPAYOPGN_STR-PERSONEXTERNALID sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKACCOUNTHOLDERNAME sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKACCOUNTNAME sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKCONTROLKEY sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKCOUNTRYKEY sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANK sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKNAME sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKACCOUNT sy-vline 
WA_CWFPERSONPAYOPGN_STR-IBAN sy-vline 
WA_CWFPERSONPAYOPGN_STR-COMPANYCODE sy-vline 
WA_CWFPERSONPAYOPGN_STR-SWIFTCODE sy-vline 
WA_CWFPERSONPAYOPGN_STR-WRKFRCPAYMENTMETHOD sy-vline 
WA_CWFPERSONPAYOPGN_STR-WRKFRCPAYMENTCURRENCY sy-vline 
WA_CWFPERSONPAYOPGN_STR-BANKREFERENCE sy-vline 
WA_CWFPERSONPAYOPGN_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_CWFPERSONPAYOPGN_STR-WORKFORCEAUTHORIZATIONGROUP sy-vline 
WA_CWFPERSONPAYOPGN_STR-BPBANKISPROTECTED sy-vline 
WA_CWFPERSONPAYOPGN_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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