ABAP Select data from SAP table P_LFOVERDUEDAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P_LFOVERDUEDAY
*  INTO TABLE @DATA(IT_P_LFOVERDUEDAY2).
*--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_P_LFOVERDUEDAY INDEX 1 INTO DATA(WA_P_LFOVERDUEDAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P_LFOVERDUEDAY>-MANDT = 1.
<P_LFOVERDUEDAY>-COMPANYCODE = 1.
<P_LFOVERDUEDAY>-DOMAINVALUENAME = 1.
<P_LFOVERDUEDAY>-CONTROLLINGAREA = 1.
<P_LFOVERDUEDAY>-COUNTRY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P_LFOVERDUEDAY-LIQUIDITYITEM, sy-vline,
  WA_P_LFOVERDUEDAY-BANKACCOUNTINTERNALID, sy-vline,
  WA_P_LFOVERDUEDAY-TRANSACTIONCURRENCY, sy-vline,
  WA_P_LFOVERDUEDAY-ORIGINALTRANSACTIONCURRENCY, sy-vline,
  WA_P_LFOVERDUEDAY-BANKACCOUNTTYPE, sy-vline,
  WA_P_LFOVERDUEDAY-BANK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P_LFOVERDUEDAY 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_P_LFOVERDUEDAY 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_P_LFOVERDUEDAY INTO WA_P_LFOVERDUEDAY.


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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_P_LFOVERDUEDAY-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_LFOVERDUEDAY-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_P_LFOVERDUEDAY-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_LFOVERDUEDAY-WBSELEMENT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ABPSN, internal->external for field PROJECT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_P_LFOVERDUEDAY-PROJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_LFOVERDUEDAY-PROJECT.
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_P_LFOVERDUEDAY_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
DOMAINVALUENAME TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COUNTRY TYPE STRING,
LIQUIDITYITEM TYPE STRING,
BANKACCOUNTINTERNALID TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
ORIGINALTRANSACTIONCURRENCY TYPE STRING,
BANKACCOUNTTYPE TYPE STRING,
BANK TYPE STRING,
BANKACCOUNT TYPE STRING,
BANKACCOUNTDESCRIPTION TYPE STRING,
BANKACCOUNTSTATUS TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
CERTAINTYLEVEL TYPE STRING,
GLACCOUNT TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BUSINESSAREA TYPE STRING,
PROFITCENTER TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
WBSELEMENT TYPE STRING,
PARTNERCOMPANY TYPE STRING,
COSTCENTER TYPE STRING,
SEGMENT TYPE STRING,
CASHPLANNINGGROUP TYPE STRING,
PLANNINGLEVEL TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
SOURCECOMPANYCODE TYPE STRING,
RESPONSIBLECOSTCENTER TYPE STRING,
PROJECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P_LFOVERDUEDAY_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_P_LFOVERDUEDAY_STR-MANDT sy-vline 
WA_P_LFOVERDUEDAY_STR-COMPANYCODE sy-vline 
WA_P_LFOVERDUEDAY_STR-DOMAINVALUENAME sy-vline 
WA_P_LFOVERDUEDAY_STR-CONTROLLINGAREA sy-vline 
WA_P_LFOVERDUEDAY_STR-COUNTRY sy-vline 
WA_P_LFOVERDUEDAY_STR-LIQUIDITYITEM sy-vline 
WA_P_LFOVERDUEDAY_STR-BANKACCOUNTINTERNALID sy-vline 
WA_P_LFOVERDUEDAY_STR-TRANSACTIONCURRENCY sy-vline 
WA_P_LFOVERDUEDAY_STR-ORIGINALTRANSACTIONCURRENCY sy-vline 
WA_P_LFOVERDUEDAY_STR-BANKACCOUNTTYPE sy-vline 
WA_P_LFOVERDUEDAY_STR-BANK sy-vline 
WA_P_LFOVERDUEDAY_STR-BANKACCOUNT sy-vline 
WA_P_LFOVERDUEDAY_STR-BANKACCOUNTDESCRIPTION sy-vline 
WA_P_LFOVERDUEDAY_STR-BANKACCOUNTSTATUS sy-vline 
WA_P_LFOVERDUEDAY_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_P_LFOVERDUEDAY_STR-CERTAINTYLEVEL sy-vline 
WA_P_LFOVERDUEDAY_STR-GLACCOUNT sy-vline 
WA_P_LFOVERDUEDAY_STR-CUSTOMER sy-vline 
WA_P_LFOVERDUEDAY_STR-SUPPLIER sy-vline 
WA_P_LFOVERDUEDAY_STR-BUSINESSPARTNER sy-vline 
WA_P_LFOVERDUEDAY_STR-BUSINESSAREA sy-vline 
WA_P_LFOVERDUEDAY_STR-PROFITCENTER sy-vline 
WA_P_LFOVERDUEDAY_STR-WBSELEMENTINTERNALID sy-vline 
WA_P_LFOVERDUEDAY_STR-WBSELEMENT sy-vline 
WA_P_LFOVERDUEDAY_STR-PARTNERCOMPANY sy-vline 
WA_P_LFOVERDUEDAY_STR-COSTCENTER sy-vline 
WA_P_LFOVERDUEDAY_STR-SEGMENT sy-vline 
WA_P_LFOVERDUEDAY_STR-CASHPLANNINGGROUP sy-vline 
WA_P_LFOVERDUEDAY_STR-PLANNINGLEVEL sy-vline 
WA_P_LFOVERDUEDAY_STR-HOUSEBANK sy-vline 
WA_P_LFOVERDUEDAY_STR-HOUSEBANKACCOUNT sy-vline 
WA_P_LFOVERDUEDAY_STR-SOURCECOMPANYCODE sy-vline 
WA_P_LFOVERDUEDAY_STR-RESPONSIBLECOSTCENTER sy-vline 
WA_P_LFOVERDUEDAY_STR-PROJECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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