ABAP Select data from SAP table FMLVPAYMADV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMLVPAYMADV
*  INTO TABLE @DATA(IT_FMLVPAYMADV2).
*--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_FMLVPAYMADV INDEX 1 INTO DATA(WA_FMLVPAYMADV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMLVPAYMADV>-MANDT = 1.
<FMLVPAYMADV>-PAYMENTADVICE = 1.
<FMLVPAYMADV>-PAYMENTADVICEITEM = 1.
<FMLVPAYMADV>-PAYMENTADVICEACCOUNTTYPE = 1.
<FMLVPAYMADV>-CREATIONDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMLVPAYMADV-COMPANYCODE, sy-vline,
  WA_FMLVPAYMADV-PAYMENTADVICEACCOUNT, sy-vline,
  WA_FMLVPAYMADV-PAIDAMOUNTINPAYTCURRENCY, sy-vline,
  WA_FMLVPAYMADV-PAYMENTADVICESELECTIONFIELD, sy-vline,
  WA_FMLVPAYMADV-PAYTADVCEXTERNALSELECTIONFIELD, sy-vline,
  WA_FMLVPAYMADV-ACCOUNTINGDOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMLVPAYMADV 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_FMLVPAYMADV 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_FMLVPAYMADV INTO WA_FMLVPAYMADV.


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

*Conversion exit AC132, internal->external for field PAIDAMOUNTINPAYTCURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FMLVPAYMADV-PAIDAMOUNTINPAYTCURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMLVPAYMADV-PAIDAMOUNTINPAYTCURRENCY.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC132, internal->external for field NETPAYMENTAMOUNTINPAYTCURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FMLVPAYMADV-NETPAYMENTAMOUNTINPAYTCURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMLVPAYMADV-NETPAYMENTAMOUNTINPAYTCURRENCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMLVPAYMADV-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMLVPAYMADV-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field DEDUCTIONAMOUNTINPAYTCURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FMLVPAYMADV-DEDUCTIONAMOUNTINPAYTCURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMLVPAYMADV-DEDUCTIONAMOUNTINPAYTCURRENCY.
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_FMLVPAYMADV_STR, 
MANDT TYPE STRING,
PAYMENTADVICE TYPE STRING,
PAYMENTADVICEITEM TYPE STRING,
PAYMENTADVICEACCOUNTTYPE TYPE STRING,
CREATIONDATE TYPE STRING,
COMPANYCODE TYPE STRING,
PAYMENTADVICEACCOUNT TYPE STRING,
PAIDAMOUNTINPAYTCURRENCY TYPE STRING,
PAYMENTADVICESELECTIONFIELD TYPE STRING,
PAYTADVCEXTERNALSELECTIONFIELD TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
INVOICEDATE TYPE STRING,
NETPAYMENTAMOUNTINPAYTCURRENCY TYPE STRING,
CURRENCY TYPE STRING,
FISCALYEAR TYPE STRING,
PAYMENTDIFFERENCEREASON TYPE STRING,
DEDUCTIONAMOUNTINPAYTCURRENCY TYPE STRING,
CUSTOMERNAME TYPE STRING,
CITYNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMLVPAYMADV_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_FMLVPAYMADV_STR-MANDT sy-vline 
WA_FMLVPAYMADV_STR-PAYMENTADVICE sy-vline 
WA_FMLVPAYMADV_STR-PAYMENTADVICEITEM sy-vline 
WA_FMLVPAYMADV_STR-PAYMENTADVICEACCOUNTTYPE sy-vline 
WA_FMLVPAYMADV_STR-CREATIONDATE sy-vline 
WA_FMLVPAYMADV_STR-COMPANYCODE sy-vline 
WA_FMLVPAYMADV_STR-PAYMENTADVICEACCOUNT sy-vline 
WA_FMLVPAYMADV_STR-PAIDAMOUNTINPAYTCURRENCY sy-vline 
WA_FMLVPAYMADV_STR-PAYMENTADVICESELECTIONFIELD sy-vline 
WA_FMLVPAYMADV_STR-PAYTADVCEXTERNALSELECTIONFIELD sy-vline 
WA_FMLVPAYMADV_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_FMLVPAYMADV_STR-DOCUMENTREFERENCEID sy-vline 
WA_FMLVPAYMADV_STR-ASSIGNMENTREFERENCE sy-vline 
WA_FMLVPAYMADV_STR-INVOICEDATE sy-vline 
WA_FMLVPAYMADV_STR-NETPAYMENTAMOUNTINPAYTCURRENCY sy-vline 
WA_FMLVPAYMADV_STR-CURRENCY sy-vline 
WA_FMLVPAYMADV_STR-FISCALYEAR sy-vline 
WA_FMLVPAYMADV_STR-PAYMENTDIFFERENCEREASON sy-vline 
WA_FMLVPAYMADV_STR-DEDUCTIONAMOUNTINPAYTCURRENCY sy-vline 
WA_FMLVPAYMADV_STR-CUSTOMERNAME sy-vline 
WA_FMLVPAYMADV_STR-CITYNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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