ABAP Select data from SAP table CWLFCUSTSTLSTOF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWLFCUSTSTLSTOF
*  INTO TABLE @DATA(IT_CWLFCUSTSTLSTOF2).
*--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_CWLFCUSTSTLSTOF INDEX 1 INTO DATA(WA_CWLFCUSTSTLSTOF2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWLFCUSTSTLSTOF-LOGISTICSDATAENTRYCAT, sy-vline,
  WA_CWLFCUSTSTLSTOF-POSTINGDATE, sy-vline,
  WA_CWLFCUSTSTLSTOF-SETTLMTMGMTACCTGTRANSFSTS, sy-vline,
  WA_CWLFCUSTSTLSTOF-DOCUMENTDATE, sy-vline,
  WA_CWLFCUSTSTLSTOF-DOCUMENTREFERENCEID, sy-vline,
  WA_CWLFCUSTSTLSTOF-ASSIGNMENTREFERENCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWLFCUSTSTLSTOF 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_CWLFCUSTSTLSTOF 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_CWLFCUSTSTLSTOF INTO WA_CWLFCUSTSTLSTOF.


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

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

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

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

*Conversion exit ALPHA, internal->external for field ONETIMECUSTOMERADDRESSID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWLFCUSTSTLSTOF-ONETIMECUSTOMERADDRESSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWLFCUSTSTLSTOF-ONETIMECUSTOMERADDRESSID.
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_CWLFCUSTSTLSTOF_STR, 
MANDT TYPE STRING,
CUSTSETTLMTLIST TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTPROCESSTYPE TYPE STRING,
LOGISTICSDATAENTRYCAT TYPE STRING,
POSTINGDATE TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTS TYPE STRING,
DOCUMENTDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
SETTLMTAPPLSTS TYPE STRING,
SETTLMTAPPLSTSGRP TYPE STRING,
CUSTOMERPRICINGPROCEDURE TYPE STRING,
BILLTOPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
CUSTSETTLMTCOMPANYCODE TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
CUSTSETTLMTLISTCURRENCY TYPE STRING,
EXCHANGERATE TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
EXCHANGERATEISFIXED TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
CUSTOMERTOTALGROSSAMOUNT TYPE STRING,
CUSTOMERTOTALNETAMOUNT TYPE STRING,
CUSTOMERTOTALTAXAMOUNT 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,
CUSTSETTLMTLISTISCANCELED TYPE STRING,
CANCLDCUSTSETTLMTLIST TYPE STRING,
CUSTOMERADDITIONALVALUEDAYS TYPE STRING,
CUSTOMERFIXEDVALUEDATE TYPE STRING,
SUPPLYINGCOUNTRY TYPE STRING,
TAXDEPARTURECOUNTRY TYPE STRING,
TAXDESTINATIONCOUNTRY TYPE STRING,
ISEUTRIANGULARDEAL TYPE STRING,
CUSTSETTLMTCOCODETAXCOUNTRY TYPE STRING,
CUSTOMERVATREGISTRATION TYPE STRING,
STATECENTRALBANKPAYMENTREASON TYPE STRING,
CREDITCONTROLAREA TYPE STRING,
SETTLMTDOCACTIVITYREASON TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
CUSTOMERPAYMENTCURRENCY TYPE STRING,
CUSTOMERPAYTCURRENCYEXCHRATE TYPE STRING,
ONETIMECUSTOMERADDRESSID TYPE STRING,
SETTLMTDATE TYPE STRING,
FISCALPERIOD TYPE STRING,
CUSTSETTLMTLISTINCMPLTNSRSN TYPE STRING,
DOCINTRASTATRELEVANCE TYPE STRING,
INTRASTATDECLNGDSFLWCAT TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
SETTLMTBUSPROCVAR TYPE STRING,
SETTLMTBUSPROCCAT TYPE STRING,
SEPAMANDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWLFCUSTSTLSTOF_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_CWLFCUSTSTLSTOF_STR-MANDT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTSETTLMTLIST sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTDOCTYPE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTDOCCAT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTPROCESSTYPE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-LOGISTICSDATAENTRYCAT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-POSTINGDATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTMGMTACCTGTRANSFSTS sy-vline 
WA_CWLFCUSTSTLSTOF_STR-DOCUMENTDATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-DOCUMENTREFERENCEID sy-vline 
WA_CWLFCUSTSTLSTOF_STR-ASSIGNMENTREFERENCE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTAPPLSTS sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTAPPLSTSGRP sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERPRICINGPROCEDURE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-BILLTOPARTY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-PAYERPARTY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTSETTLMTCOMPANYCODE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SALESORGANIZATION sy-vline 
WA_CWLFCUSTSTLSTOF_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CWLFCUSTSTLSTOF_STR-DIVISION sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CREATEDBYUSER sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CREATIONDATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CREATIONTIME sy-vline 
WA_CWLFCUSTSTLSTOF_STR-LASTCHANGEDATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTSETTLMTLISTCURRENCY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-EXCHANGERATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-EXCHANGERATETYPE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-EXCHANGERATEISFIXED sy-vline 
WA_CWLFCUSTSTLSTOF_STR-EXCHANGERATEDATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERTOTALGROSSAMOUNT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERTOTALNETAMOUNT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERTOTALTAXAMOUNT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERCASHDISCOUNT1DAYS sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERCASHDISCOUNT2DAYS sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERNETPAYMENTDAYS sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERCASHDISCOUNT1PERCENT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERCASHDISCOUNT2PERCENT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERPAYMENTMETHOD sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTTOTELIGIBLEAMTFORCSHDISC sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTSETTLMTLISTISCANCELED sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CANCLDCUSTSETTLMTLIST sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERADDITIONALVALUEDAYS sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERFIXEDVALUEDATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SUPPLYINGCOUNTRY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-TAXDEPARTURECOUNTRY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-TAXDESTINATIONCOUNTRY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-ISEUTRIANGULARDEAL sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTSETTLMTCOCODETAXCOUNTRY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERVATREGISTRATION sy-vline 
WA_CWLFCUSTSTLSTOF_STR-STATECENTRALBANKPAYMENTREASON sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CREDITCONTROLAREA sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTDOCACTIVITYREASON sy-vline 
WA_CWLFCUSTSTLSTOF_STR-PAYMENTREFERENCE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERPAYMENTCURRENCY sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTOMERPAYTCURRENCYEXCHRATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-ONETIMECUSTOMERADDRESSID sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTDATE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-FISCALPERIOD sy-vline 
WA_CWLFCUSTSTLSTOF_STR-CUSTSETTLMTLISTINCMPLTNSRSN sy-vline 
WA_CWLFCUSTSTLSTOF_STR-DOCINTRASTATRELEVANCE sy-vline 
WA_CWLFCUSTSTLSTOF_STR-INTRASTATDECLNGDSFLWCAT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-INCOTERMSVERSION sy-vline 
WA_CWLFCUSTSTLSTOF_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_CWLFCUSTSTLSTOF_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_CWLFCUSTSTLSTOF_STR-INCOTERMSLOCATION1 sy-vline 
WA_CWLFCUSTSTLSTOF_STR-INCOTERMSLOCATION2 sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTBUSPROCVAR sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SETTLMTBUSPROCCAT sy-vline 
WA_CWLFCUSTSTLSTOF_STR-SEPAMANDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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