ABAP Select data from SAP table PFSITEMWMAPPING into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFSITEMWMAPPING
*  INTO TABLE @DATA(IT_PFSITEMWMAPPING2).
*--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_PFSITEMWMAPPING INDEX 1 INTO DATA(WA_PFSITEMWMAPPING2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PFSITEMWMAPPING>-MANDT = 1.
<PFSITEMWMAPPING>-DRAFTUUID = 1.
<PFSITEMWMAPPING>-FSITEMMAPPINGUUID = 1.
<PFSITEMWMAPPING>-FSITEMMAPPINGID = 1.
<PFSITEMWMAPPING>-CONSOLIDATIONCHARTOFACCOUNTS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFSITEMWMAPPING-CHARTOFACCOUNTS, sy-vline,
  WA_PFSITEMWMAPPING-FSITEMMAPPINGREVISION, sy-vline,
  WA_PFSITEMWMAPPING-FINANCIALSTATEMENTITEM, sy-vline,
  WA_PFSITEMWMAPPING-ISACTIVEENTITY, sy-vline,
  WA_PFSITEMWMAPPING-ISCONSOLIDATIONITEM, sy-vline,
  WA_PFSITEMWMAPPING-FINANCIALSTATEMENTITEMISBLKD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFSITEMWMAPPING 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_PFSITEMWMAPPING 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_PFSITEMWMAPPING INTO WA_PFSITEMWMAPPING.


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

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

*Conversion exit ALPHA, internal->external for field FINANCIALSTATEMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFSITEMWMAPPING-FINANCIALSTATEMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFSITEMWMAPPING-FINANCIALSTATEMENTITEM.
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_PFSITEMWMAPPING_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
FSITEMMAPPINGUUID TYPE STRING,
FSITEMMAPPINGID TYPE STRING,
CONSOLIDATIONCHARTOFACCOUNTS TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
FSITEMMAPPINGREVISION TYPE STRING,
FINANCIALSTATEMENTITEM TYPE STRING,
ISACTIVEENTITY TYPE STRING,
ISCONSOLIDATIONITEM TYPE STRING,
FINANCIALSTATEMENTITEMISBLKD TYPE STRING,
FINANCIALSTATEMENTITEMTYPE TYPE STRING,
BREAKDOWNCATEGORY TYPE STRING,
FINANCIALSTATEMENTITEMTEXT TYPE STRING,
FINANCIALSTATEMENTITEMMDMTEXT TYPE STRING,
ASSIGNEEGLACCOUNTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFSITEMWMAPPING_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_PFSITEMWMAPPING_STR-MANDT sy-vline 
WA_PFSITEMWMAPPING_STR-DRAFTUUID sy-vline 
WA_PFSITEMWMAPPING_STR-FSITEMMAPPINGUUID sy-vline 
WA_PFSITEMWMAPPING_STR-FSITEMMAPPINGID sy-vline 
WA_PFSITEMWMAPPING_STR-CONSOLIDATIONCHARTOFACCOUNTS sy-vline 
WA_PFSITEMWMAPPING_STR-CHARTOFACCOUNTS sy-vline 
WA_PFSITEMWMAPPING_STR-FSITEMMAPPINGREVISION sy-vline 
WA_PFSITEMWMAPPING_STR-FINANCIALSTATEMENTITEM sy-vline 
WA_PFSITEMWMAPPING_STR-ISACTIVEENTITY sy-vline 
WA_PFSITEMWMAPPING_STR-ISCONSOLIDATIONITEM sy-vline 
WA_PFSITEMWMAPPING_STR-FINANCIALSTATEMENTITEMISBLKD sy-vline 
WA_PFSITEMWMAPPING_STR-FINANCIALSTATEMENTITEMTYPE sy-vline 
WA_PFSITEMWMAPPING_STR-BREAKDOWNCATEGORY sy-vline 
WA_PFSITEMWMAPPING_STR-FINANCIALSTATEMENTITEMTEXT sy-vline 
WA_PFSITEMWMAPPING_STR-FINANCIALSTATEMENTITEMMDMTEXT sy-vline 
WA_PFSITEMWMAPPING_STR-ASSIGNEEGLACCOUNTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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