ABAP Select data from SAP table CWLFPSDOCMON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWLFPSDOCMON
*  INTO TABLE @DATA(IT_CWLFPSDOCMON2).
*--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_CWLFPSDOCMON INDEX 1 INTO DATA(WA_CWLFPSDOCMON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWLFPSDOCMON>-MANDT = 1.
<CWLFPSDOCMON>-PERSONNELSETTLEMENTDOCUMENT = 1.
<CWLFPSDOCMON>-SETTLMTDOCTYPE = 1.
<CWLFPSDOCMON>-SETTLMTDOCTYPEDESC = 1.
<CWLFPSDOCMON>-SETTLMTDOCCAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWLFPSDOCMON-SETTLMTPROCESSTYPE, sy-vline,
  WA_CWLFPSDOCMON-SETTLMTPROCESSTYPEDESC, sy-vline,
  WA_CWLFPSDOCMON-SETTLMTPROCESSCAT, sy-vline,
  WA_CWLFPSDOCMON-DOCUMENTDATE, sy-vline,
  WA_CWLFPSDOCMON-POSTINGDATE, sy-vline,
  WA_CWLFPSDOCMON-FISCALPERIOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWLFPSDOCMON 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_CWLFPSDOCMON 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_CWLFPSDOCMON INTO WA_CWLFPSDOCMON.


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

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

*Conversion exit ALPHA, internal->external for field RVSDPERSSETTLMTDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWLFPSDOCMON-RVSDPERSSETTLMTDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWLFPSDOCMON-RVSDPERSSETTLMTDOC.
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_CWLFPSDOCMON_STR, 
MANDT TYPE STRING,
PERSONNELSETTLEMENTDOCUMENT TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCTYPEDESC TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTPROCESSTYPE TYPE STRING,
SETTLMTPROCESSTYPEDESC TYPE STRING,
SETTLMTPROCESSCAT TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
FISCALPERIOD TYPE STRING,
PERSSETTLMTACCTGTRANSFSTS TYPE STRING,
PERSSETTLMTACCTGTRANSFSTSNAME TYPE STRING,
PERSONWORKAGREEMENT TYPE STRING,
PERSONFULLNAME TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
PERSONNELCOSTCENTER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATEDBYUSERFULLNAME TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
PERSSETTLMTDOCCURRENCY TYPE STRING,
EXCHANGERATE TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
EXCHANGERATEISFIXED TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
CNVRTDTOTALNETAMOUNT TYPE STRING,
PERSSETTLMTDOCISREVERSED TYPE STRING,
RVSDPERSSETTLMTDOC TYPE STRING,
SETTLMTAPPLSTSGRP TYPE STRING,
SETTLMTAPPLSTS TYPE STRING,
SETTLMTDOCACTIVITYREASON TYPE STRING,
SETTLMTCOMPENSATIONREASON TYPE STRING,
SETTLMTCOMPNRSNDESC TYPE STRING,
SETTLMTCOMPNVAR TYPE STRING,
SETTLMTCOMPNVARDESC TYPE STRING,
ACTUALSETTLMTDATE TYPE STRING,
SETTLMTDATE TYPE STRING,
SETTLMTBUSPROCCAT TYPE STRING,
JOURNALENTRYCREATIONDATE TYPE STRING,
JOURNALENTRYCREATIONTIME TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARQUARTERNAME TYPE STRING,
YEARQUARTER TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PERSSETTLMTACCTGTRANSFSTSCRITL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWLFPSDOCMON_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_CWLFPSDOCMON_STR-MANDT sy-vline 
WA_CWLFPSDOCMON_STR-PERSONNELSETTLEMENTDOCUMENT sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTDOCTYPE sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTDOCTYPEDESC sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTDOCCAT sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTPROCESSTYPE sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTPROCESSTYPEDESC sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTPROCESSCAT sy-vline 
WA_CWLFPSDOCMON_STR-DOCUMENTDATE sy-vline 
WA_CWLFPSDOCMON_STR-POSTINGDATE sy-vline 
WA_CWLFPSDOCMON_STR-FISCALPERIOD sy-vline 
WA_CWLFPSDOCMON_STR-PERSSETTLMTACCTGTRANSFSTS sy-vline 
WA_CWLFPSDOCMON_STR-PERSSETTLMTACCTGTRANSFSTSNAME sy-vline 
WA_CWLFPSDOCMON_STR-PERSONWORKAGREEMENT sy-vline 
WA_CWLFPSDOCMON_STR-PERSONFULLNAME sy-vline 
WA_CWLFPSDOCMON_STR-SALESORGANIZATION sy-vline 
WA_CWLFPSDOCMON_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CWLFPSDOCMON_STR-DIVISION sy-vline 
WA_CWLFPSDOCMON_STR-COMPANYCODE sy-vline 
WA_CWLFPSDOCMON_STR-COMPANYCODENAME sy-vline 
WA_CWLFPSDOCMON_STR-PERSONNELCOSTCENTER sy-vline 
WA_CWLFPSDOCMON_STR-CREATEDBYUSER sy-vline 
WA_CWLFPSDOCMON_STR-CREATEDBYUSERFULLNAME sy-vline 
WA_CWLFPSDOCMON_STR-CREATIONDATE sy-vline 
WA_CWLFPSDOCMON_STR-CREATIONTIME sy-vline 
WA_CWLFPSDOCMON_STR-CREATIONDATETIME sy-vline 
WA_CWLFPSDOCMON_STR-LASTCHANGEDATE sy-vline 
WA_CWLFPSDOCMON_STR-PAYMENTREFERENCE sy-vline 
WA_CWLFPSDOCMON_STR-DOCUMENTREFERENCEID sy-vline 
WA_CWLFPSDOCMON_STR-ASSIGNMENTREFERENCE sy-vline 
WA_CWLFPSDOCMON_STR-PERSSETTLMTDOCCURRENCY sy-vline 
WA_CWLFPSDOCMON_STR-EXCHANGERATE sy-vline 
WA_CWLFPSDOCMON_STR-EXCHANGERATETYPE sy-vline 
WA_CWLFPSDOCMON_STR-EXCHANGERATEISFIXED sy-vline 
WA_CWLFPSDOCMON_STR-EXCHANGERATEDATE sy-vline 
WA_CWLFPSDOCMON_STR-TOTALNETAMOUNT sy-vline 
WA_CWLFPSDOCMON_STR-CNVRTDTOTALNETAMOUNT sy-vline 
WA_CWLFPSDOCMON_STR-PERSSETTLMTDOCISREVERSED sy-vline 
WA_CWLFPSDOCMON_STR-RVSDPERSSETTLMTDOC sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTAPPLSTSGRP sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTAPPLSTS sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTDOCACTIVITYREASON sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTCOMPENSATIONREASON sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTCOMPNRSNDESC sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTCOMPNVAR sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTCOMPNVARDESC sy-vline 
WA_CWLFPSDOCMON_STR-ACTUALSETTLMTDATE sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTDATE sy-vline 
WA_CWLFPSDOCMON_STR-SETTLMTBUSPROCCAT sy-vline 
WA_CWLFPSDOCMON_STR-JOURNALENTRYCREATIONDATE sy-vline 
WA_CWLFPSDOCMON_STR-JOURNALENTRYCREATIONTIME sy-vline 
WA_CWLFPSDOCMON_STR-CALENDARYEAR sy-vline 
WA_CWLFPSDOCMON_STR-CALENDARQUARTER sy-vline 
WA_CWLFPSDOCMON_STR-CALENDARQUARTERNAME sy-vline 
WA_CWLFPSDOCMON_STR-YEARQUARTER sy-vline 
WA_CWLFPSDOCMON_STR-DISPLAYCURRENCY sy-vline 
WA_CWLFPSDOCMON_STR-CONTROLLINGAREA sy-vline 
WA_CWLFPSDOCMON_STR-PERSSETTLMTACCTGTRANSFSTSCRITL sy-vline      INTO ld_text SEPARATED BY SPACE.

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