ABAP Select data from SAP table IWLFEXPNSMT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IWLFEXPNSMT 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 IWLFEXPNSMT. 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 IWLFEXPNSMT 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_IWLFEXPNSMT TYPE STANDARD TABLE OF IWLFEXPNSMT,
      WA_IWLFEXPNSMT TYPE IWLFEXPNSMT,
      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: <IWLFEXPNSMT> TYPE IWLFEXPNSMT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWLFEXPNSMT
*  INTO TABLE @DATA(IT_IWLFEXPNSMT2).
*--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_IWLFEXPNSMT INDEX 1 INTO DATA(WA_IWLFEXPNSMT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IWLFEXPNSMT>-MANDT = 1.
<IWLFEXPNSMT>-EXPNSETTLMT = 1.
<IWLFEXPNSMT>-SETTLMTDOCTYPE = 1.
<IWLFEXPNSMT>-SETTLMTDOCCAT = 1.
<IWLFEXPNSMT>-SETTLMTPROCESSTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWLFEXPNSMT-LOGISTICSDATAENTRYCAT, sy-vline,
  WA_IWLFEXPNSMT-SETTLMTCAT, sy-vline,
  WA_IWLFEXPNSMT-CUSTOMERPRICINGPROCEDURE, sy-vline,
  WA_IWLFEXPNSMT-POSTINGDATE, sy-vline,
  WA_IWLFEXPNSMT-SETTLMTMGMTACCTGTRANSFSTS, sy-vline,
  WA_IWLFEXPNSMT-BILLTOPARTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWLFEXPNSMT 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_IWLFEXPNSMT 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_IWLFEXPNSMT INTO WA_IWLFEXPNSMT.


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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field TRDGEXPNCUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IWLFEXPNSMT-TRDGEXPNCUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWLFEXPNSMT-TRDGEXPNCUSTOMER.
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_IWLFEXPNSMT_STR, 
MANDT TYPE STRING,
EXPNSETTLMT TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTPROCESSTYPE TYPE STRING,
LOGISTICSDATAENTRYCAT TYPE STRING,
SETTLMTCAT TYPE STRING,
CUSTOMERPRICINGPROCEDURE TYPE STRING,
POSTINGDATE TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTS TYPE STRING,
BILLTOPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
CUSTSETTLMTCOMPANYCODE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
EXPNSETTLMTCURRENCY TYPE STRING,
EXCHANGERATE TYPE STRING,
EXCHANGERATEISFIXED TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
CUSTOMERTOTALGROSSAMOUNT TYPE STRING,
CUSTOMERTOTALNETAMOUNT TYPE STRING,
CUSTOMERPAYMENTTERMS TYPE STRING,
CUSTOMERCASHDISCOUNT1DAYS TYPE STRING,
CUSTOMERCASHDISCOUNT2DAYS TYPE STRING,
CUSTOMERNETPAYMENTDAYS TYPE STRING,
CUSTOMERCASHDISCOUNT1PERCENT TYPE STRING,
CUSTOMERCASHDISCOUNT2PERCENT TYPE STRING,
CUSTOMERPAYMENTMETHOD TYPE STRING,
CUSTTOTELIGIBLEAMTFORCSHDISC TYPE STRING,
EXPNSETTLMTISCANCELED TYPE STRING,
CANCLDEXPNSETTLMT TYPE STRING,
CUSTOMERPRICINGDOCUMENT TYPE STRING,
CUSTOMERADDITIONALVALUEDAYS TYPE STRING,
CUSTOMERFIXEDVALUEDATE TYPE STRING,
CUSTOMERTOTALTAXAMOUNT TYPE STRING,
CREDITCONTROLAREA TYPE STRING,
SETTLMTDOCACTIVITYREASON TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
CUSTOMERPAYMENTCURRENCY TYPE STRING,
CUSTOMERPAYTCURRENCYEXCHRATE TYPE STRING,
SETTLMTAPPLSTS TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
ONETIMECUSTOMERADDRESSID TYPE STRING,
SETTLMTRELTDTRDGCONTR TYPE STRING,
TRDGEXPNSETTLMTDOC TYPE STRING,
SETTLMTDOCSMMRZNCAT TYPE STRING,
FISCALPERIOD TYPE STRING,
TRDGEXPNDOCSETTLED TYPE STRING,
TRDGEXPNCURRENCY TYPE STRING,
TRDGEXPNAMOUNT TYPE STRING,
TRDGEXPNCUSTOMER TYPE STRING,
EXPNSETTLMTINCMPLTNSRSN TYPE STRING,
DOCINTRASTATRELEVANCE TYPE STRING,
TAXDEPARTURECOUNTRY TYPE STRING,
TAXDESTINATIONCOUNTRY TYPE STRING,
ISEUTRIANGULARDEAL TYPE STRING,
CUSTOMERVATREGISTRATION TYPE STRING,
INTRASTATDECLNGDSFLWCAT TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
SETTLMTDATE TYPE STRING,
SETTLMTBUSPROCVAR TYPE STRING,
CUSTSETTLMTCOCODETAXCOUNTRY TYPE STRING,
SETTLMTBUSPROCCAT TYPE STRING,
SEPAMANDATE TYPE STRING,
SETTLMTAPPLSTSGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWLFEXPNSMT_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_IWLFEXPNSMT_STR-MANDT sy-vline 
WA_IWLFEXPNSMT_STR-EXPNSETTLMT sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTDOCTYPE sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTDOCCAT sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTPROCESSTYPE sy-vline 
WA_IWLFEXPNSMT_STR-LOGISTICSDATAENTRYCAT sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTCAT sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERPRICINGPROCEDURE sy-vline 
WA_IWLFEXPNSMT_STR-POSTINGDATE sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTMGMTACCTGTRANSFSTS sy-vline 
WA_IWLFEXPNSMT_STR-BILLTOPARTY sy-vline 
WA_IWLFEXPNSMT_STR-PAYERPARTY sy-vline 
WA_IWLFEXPNSMT_STR-SALESORGANIZATION sy-vline 
WA_IWLFEXPNSMT_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_IWLFEXPNSMT_STR-DIVISION sy-vline 
WA_IWLFEXPNSMT_STR-CUSTSETTLMTCOMPANYCODE sy-vline 
WA_IWLFEXPNSMT_STR-CREATEDBYUSER sy-vline 
WA_IWLFEXPNSMT_STR-CREATIONDATE sy-vline 
WA_IWLFEXPNSMT_STR-CREATIONTIME sy-vline 
WA_IWLFEXPNSMT_STR-LASTCHANGEDATE sy-vline 
WA_IWLFEXPNSMT_STR-DOCUMENTDATE sy-vline 
WA_IWLFEXPNSMT_STR-DOCUMENTREFERENCEID sy-vline 
WA_IWLFEXPNSMT_STR-ASSIGNMENTREFERENCE sy-vline 
WA_IWLFEXPNSMT_STR-EXPNSETTLMTCURRENCY sy-vline 
WA_IWLFEXPNSMT_STR-EXCHANGERATE sy-vline 
WA_IWLFEXPNSMT_STR-EXCHANGERATEISFIXED sy-vline 
WA_IWLFEXPNSMT_STR-EXCHANGERATEDATE sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERTOTALGROSSAMOUNT sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERTOTALNETAMOUNT sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERCASHDISCOUNT1DAYS sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERCASHDISCOUNT2DAYS sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERNETPAYMENTDAYS sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERCASHDISCOUNT1PERCENT sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERCASHDISCOUNT2PERCENT sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERPAYMENTMETHOD sy-vline 
WA_IWLFEXPNSMT_STR-CUSTTOTELIGIBLEAMTFORCSHDISC sy-vline 
WA_IWLFEXPNSMT_STR-EXPNSETTLMTISCANCELED sy-vline 
WA_IWLFEXPNSMT_STR-CANCLDEXPNSETTLMT sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERPRICINGDOCUMENT sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERADDITIONALVALUEDAYS sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERFIXEDVALUEDATE sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERTOTALTAXAMOUNT sy-vline 
WA_IWLFEXPNSMT_STR-CREDITCONTROLAREA sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTDOCACTIVITYREASON sy-vline 
WA_IWLFEXPNSMT_STR-PAYMENTREFERENCE sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERPAYMENTCURRENCY sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERPAYTCURRENCYEXCHRATE sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTAPPLSTS sy-vline 
WA_IWLFEXPNSMT_STR-EXCHANGERATETYPE sy-vline 
WA_IWLFEXPNSMT_STR-SALESOFFICE sy-vline 
WA_IWLFEXPNSMT_STR-SALESGROUP sy-vline 
WA_IWLFEXPNSMT_STR-ONETIMECUSTOMERADDRESSID sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTRELTDTRDGCONTR sy-vline 
WA_IWLFEXPNSMT_STR-TRDGEXPNSETTLMTDOC sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTDOCSMMRZNCAT sy-vline 
WA_IWLFEXPNSMT_STR-FISCALPERIOD sy-vline 
WA_IWLFEXPNSMT_STR-TRDGEXPNDOCSETTLED sy-vline 
WA_IWLFEXPNSMT_STR-TRDGEXPNCURRENCY sy-vline 
WA_IWLFEXPNSMT_STR-TRDGEXPNAMOUNT sy-vline 
WA_IWLFEXPNSMT_STR-TRDGEXPNCUSTOMER sy-vline 
WA_IWLFEXPNSMT_STR-EXPNSETTLMTINCMPLTNSRSN sy-vline 
WA_IWLFEXPNSMT_STR-DOCINTRASTATRELEVANCE sy-vline 
WA_IWLFEXPNSMT_STR-TAXDEPARTURECOUNTRY sy-vline 
WA_IWLFEXPNSMT_STR-TAXDESTINATIONCOUNTRY sy-vline 
WA_IWLFEXPNSMT_STR-ISEUTRIANGULARDEAL sy-vline 
WA_IWLFEXPNSMT_STR-CUSTOMERVATREGISTRATION sy-vline 
WA_IWLFEXPNSMT_STR-INTRASTATDECLNGDSFLWCAT sy-vline 
WA_IWLFEXPNSMT_STR-INCOTERMSVERSION sy-vline 
WA_IWLFEXPNSMT_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_IWLFEXPNSMT_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_IWLFEXPNSMT_STR-INCOTERMSLOCATION1 sy-vline 
WA_IWLFEXPNSMT_STR-INCOTERMSLOCATION2 sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTDATE sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTBUSPROCVAR sy-vline 
WA_IWLFEXPNSMT_STR-CUSTSETTLMTCOCODETAXCOUNTRY sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTBUSPROCCAT sy-vline 
WA_IWLFEXPNSMT_STR-SEPAMANDATE sy-vline 
WA_IWLFEXPNSMT_STR-SETTLMTAPPLSTSGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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