ABAP Select data from SAP table IWLFSMTPROCFLOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWLFSMTPROCFLOW
*  INTO TABLE @DATA(IT_IWLFSMTPROCFLOW2).
*--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_IWLFSMTPROCFLOW INDEX 1 INTO DATA(WA_IWLFSMTPROCFLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IWLFSMTPROCFLOW>-MANDT = 1.
<IWLFSMTPROCFLOW>-SETTLMTMGMTDOCRELSHPUUID = 1.
<IWLFSMTPROCFLOW>-SETTLMTPRECDGDOC = 1.
<IWLFSMTPROCFLOW>-SETTLMTPRECDGDOCITEM = 1.
<IWLFSMTPROCFLOW>-SETTLMTPRECDGDOCCAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWLFSMTPROCFLOW-SETTLMTSUBSQNTDOC, sy-vline,
  WA_IWLFSMTPROCFLOW-SETTLMTSUBSQNTDOCITEM, sy-vline,
  WA_IWLFSMTPROCFLOW-SETTLMTSUBSQNTDOCCAT, sy-vline,
  WA_IWLFSMTPROCFLOW-CREATIONDATE, sy-vline,
  WA_IWLFSMTPROCFLOW-CREATIONTIME, sy-vline,
  WA_IWLFSMTPROCFLOW-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWLFSMTPROCFLOW 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_IWLFSMTPROCFLOW 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_IWLFSMTPROCFLOW INTO WA_IWLFSMTPROCFLOW.


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

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

*Conversion exit GJAHR, internal->external for field SETTLMTPRECDGDOCFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IWLFSMTPROCFLOW-SETTLMTPRECDGDOCFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWLFSMTPROCFLOW-SETTLMTPRECDGDOCFISCALYEAR.
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_IWLFSMTPROCFLOW_STR, 
MANDT TYPE STRING,
SETTLMTMGMTDOCRELSHPUUID TYPE STRING,
SETTLMTPRECDGDOC TYPE STRING,
SETTLMTPRECDGDOCITEM TYPE STRING,
SETTLMTPRECDGDOCCAT TYPE STRING,
SETTLMTSUBSQNTDOC TYPE STRING,
SETTLMTSUBSQNTDOCITEM TYPE STRING,
SETTLMTSUBSQNTDOCCAT TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
SUBSQNTSETTLMTCAT TYPE STRING,
PRECDGSETTLMTMGMTDOCCAT TYPE STRING,
SUBSQNTSETTLMTMGMTDOCCAT TYPE STRING,
SETTLMTPRECDGDOCFISCALYEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWLFSMTPROCFLOW_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_IWLFSMTPROCFLOW_STR-MANDT sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTMGMTDOCRELSHPUUID sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTPRECDGDOC sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTPRECDGDOCITEM sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTPRECDGDOCCAT sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTSUBSQNTDOC sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTSUBSQNTDOCITEM sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTSUBSQNTDOCCAT sy-vline 
WA_IWLFSMTPROCFLOW_STR-CREATIONDATE sy-vline 
WA_IWLFSMTPROCFLOW_STR-CREATIONTIME sy-vline 
WA_IWLFSMTPROCFLOW_STR-CREATEDBYUSER sy-vline 
WA_IWLFSMTPROCFLOW_STR-SUBSQNTSETTLMTCAT sy-vline 
WA_IWLFSMTPROCFLOW_STR-PRECDGSETTLMTMGMTDOCCAT sy-vline 
WA_IWLFSMTPROCFLOW_STR-SUBSQNTSETTLMTMGMTDOCCAT sy-vline 
WA_IWLFSMTPROCFLOW_STR-SETTLMTPRECDGDOCFISCALYEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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