ABAP Select data from SAP table PFSITEMMAPHDRDEF 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 PFSITEMMAPHDRDEF 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 PFSITEMMAPHDRDEF. 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 PFSITEMMAPHDRDEF 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_PFSITEMMAPHDRDEF TYPE STANDARD TABLE OF PFSITEMMAPHDRDEF,
      WA_PFSITEMMAPHDRDEF TYPE PFSITEMMAPHDRDEF,
      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: <PFSITEMMAPHDRDEF> TYPE PFSITEMMAPHDRDEF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PFSITEMMAPHDRDEF
*  INTO TABLE @DATA(IT_PFSITEMMAPHDRDEF2).
*--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_PFSITEMMAPHDRDEF INDEX 1 INTO DATA(WA_PFSITEMMAPHDRDEF2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PFSITEMMAPHDRDEF-FSITEMMAPPINGREVISION, sy-vline,
  WA_PFSITEMMAPHDRDEF-HASERROR, sy-vline,
  WA_PFSITEMMAPHDRDEF-SYSTEMMESSAGETEXT, sy-vline,
  WA_PFSITEMMAPHDRDEF-ISACTIVEENTITY, sy-vline,
  WA_PFSITEMMAPHDRDEF-HASACTIVEENTITY, sy-vline,
  WA_PFSITEMMAPHDRDEF-HASDRAFTENTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PFSITEMMAPHDRDEF 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_PFSITEMMAPHDRDEF 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_PFSITEMMAPHDRDEF INTO WA_PFSITEMMAPHDRDEF.


*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_PFSITEMMAPHDRDEF-FSITEMMAPPINGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFSITEMMAPHDRDEF-FSITEMMAPPINGID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FSITEMMAPPINGREVISION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PFSITEMMAPHDRDEF-FSITEMMAPPINGREVISION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PFSITEMMAPHDRDEF-FSITEMMAPPINGREVISION.
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_PFSITEMMAPHDRDEF_STR, 
MANDT TYPE STRING,
FSITEMMAPPINGUUID TYPE STRING,
CONSOLIDATIONCHARTOFACCOUNTS TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
FSITEMMAPPINGID TYPE STRING,
FSITEMMAPPINGREVISION TYPE STRING,
HASERROR TYPE STRING,
SYSTEMMESSAGETEXT TYPE STRING,
ISACTIVEENTITY TYPE STRING,
HASACTIVEENTITY TYPE STRING,
HASDRAFTENTITY TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
TOTALNMBROFMAPPEDGLACCOUNTS TYPE STRING,
TOTALNMBROFNOTMAPPEDGLACCOUNTS TYPE STRING,
TOTALNMBROFFINSTMNTITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PFSITEMMAPHDRDEF_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_PFSITEMMAPHDRDEF_STR-MANDT sy-vline 
WA_PFSITEMMAPHDRDEF_STR-FSITEMMAPPINGUUID sy-vline 
WA_PFSITEMMAPHDRDEF_STR-CONSOLIDATIONCHARTOFACCOUNTS sy-vline 
WA_PFSITEMMAPHDRDEF_STR-CHARTOFACCOUNTS sy-vline 
WA_PFSITEMMAPHDRDEF_STR-FSITEMMAPPINGID sy-vline 
WA_PFSITEMMAPHDRDEF_STR-FSITEMMAPPINGREVISION sy-vline 
WA_PFSITEMMAPHDRDEF_STR-HASERROR sy-vline 
WA_PFSITEMMAPHDRDEF_STR-SYSTEMMESSAGETEXT sy-vline 
WA_PFSITEMMAPHDRDEF_STR-ISACTIVEENTITY sy-vline 
WA_PFSITEMMAPHDRDEF_STR-HASACTIVEENTITY sy-vline 
WA_PFSITEMMAPHDRDEF_STR-HASDRAFTENTITY sy-vline 
WA_PFSITEMMAPHDRDEF_STR-CREATEDBYUSER sy-vline 
WA_PFSITEMMAPHDRDEF_STR-CREATIONDATETIME sy-vline 
WA_PFSITEMMAPHDRDEF_STR-LASTCHANGEBYUSER sy-vline 
WA_PFSITEMMAPHDRDEF_STR-LASTCHANGEDATETIME sy-vline 
WA_PFSITEMMAPHDRDEF_STR-TOTALNMBROFMAPPEDGLACCOUNTS sy-vline 
WA_PFSITEMMAPHDRDEF_STR-TOTALNMBROFNOTMAPPEDGLACCOUNTS sy-vline 
WA_PFSITEMMAPHDRDEF_STR-TOTALNMBROFFINSTMNTITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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