ABAP Select data from SAP table PDM_FUNCLOCAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDM_FUNCLOCAT
*  INTO TABLE @DATA(IT_PDM_FUNCLOCAT2).
*--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_PDM_FUNCLOCAT INDEX 1 INTO DATA(WA_PDM_FUNCLOCAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDM_FUNCLOCAT>-RFCDEST = 1.
<PDM_FUNCLOCAT>-OBJECT_HANDLE = 1.
<PDM_FUNCLOCAT>-LOGSYS = 1.
<PDM_FUNCLOCAT>-TPLNR = 1.
<PDM_FUNCLOCAT>-PLTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDM_FUNCLOCAT-LVORM, sy-vline,
  WA_PDM_FUNCLOCAT-NOT_EXIST, sy-vline,
  WA_PDM_FUNCLOCAT-TPLKZ, sy-vline,
  WA_PDM_FUNCLOCAT-FLTYP, sy-vline,
  WA_PDM_FUNCLOCAT-DATAB, sy-vline,
  WA_PDM_FUNCLOCAT-IEQUI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDM_FUNCLOCAT 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_PDM_FUNCLOCAT 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_PDM_FUNCLOCAT INTO WA_PDM_FUNCLOCAT.


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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_PDM_FUNCLOCAT-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_FUNCLOCAT-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PDM_FUNCLOCAT-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_FUNCLOCAT-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BAUJJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PDM_FUNCLOCAT-BAUJJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_FUNCLOCAT-BAUJJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PDM_FUNCLOCAT-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDM_FUNCLOCAT-EMATN.
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_PDM_FUNCLOCAT_STR, 
RFCDEST TYPE STRING,
OBJECT_HANDLE TYPE STRING,
LOGSYS TYPE STRING,
TPLNR TYPE STRING,
PLTXT TYPE STRING,
LVORM TYPE STRING,
NOT_EXIST TYPE STRING,
TPLKZ TYPE STRING,
FLTYP TYPE STRING,
DATAB TYPE STRING,
IEQUI TYPE STRING,
EINZL TYPE STRING,
IWERK TYPE STRING,
INGRP TYPE STRING,
RBNR TYPE STRING,
POSNR TYPE STRING,
PREMS TYPE STRING,
INVNR TYPE STRING,
GROES TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
ANSWT TYPE STRING,
WAERS TYPE STRING,
ANSDT TYPE STRING,
BAUJJ TYPE STRING,
BAUMM TYPE STRING,
TYPBZ TYPE STRING,
EMATN TYPE STRING,
SERGE TYPE STRING,
ABCKZ TYPE STRING,
EQFNR TYPE STRING,
SWERK TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
SELECTED TYPE STRING,
NOT_SELECTABLE TYPE STRING,
INACTIVE TYPE STRING,
STRNO TYPE STRING,
MAPAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDM_FUNCLOCAT_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_PDM_FUNCLOCAT_STR-RFCDEST sy-vline 
WA_PDM_FUNCLOCAT_STR-OBJECT_HANDLE sy-vline 
WA_PDM_FUNCLOCAT_STR-LOGSYS sy-vline 
WA_PDM_FUNCLOCAT_STR-TPLNR sy-vline 
WA_PDM_FUNCLOCAT_STR-PLTXT sy-vline 
WA_PDM_FUNCLOCAT_STR-LVORM sy-vline 
WA_PDM_FUNCLOCAT_STR-NOT_EXIST sy-vline 
WA_PDM_FUNCLOCAT_STR-TPLKZ sy-vline 
WA_PDM_FUNCLOCAT_STR-FLTYP sy-vline 
WA_PDM_FUNCLOCAT_STR-DATAB sy-vline 
WA_PDM_FUNCLOCAT_STR-IEQUI sy-vline 
WA_PDM_FUNCLOCAT_STR-EINZL sy-vline 
WA_PDM_FUNCLOCAT_STR-IWERK sy-vline 
WA_PDM_FUNCLOCAT_STR-INGRP sy-vline 
WA_PDM_FUNCLOCAT_STR-RBNR sy-vline 
WA_PDM_FUNCLOCAT_STR-POSNR sy-vline 
WA_PDM_FUNCLOCAT_STR-PREMS sy-vline 
WA_PDM_FUNCLOCAT_STR-INVNR sy-vline 
WA_PDM_FUNCLOCAT_STR-GROES sy-vline 
WA_PDM_FUNCLOCAT_STR-BRGEW sy-vline 
WA_PDM_FUNCLOCAT_STR-GEWEI sy-vline 
WA_PDM_FUNCLOCAT_STR-ANSWT sy-vline 
WA_PDM_FUNCLOCAT_STR-WAERS sy-vline 
WA_PDM_FUNCLOCAT_STR-ANSDT sy-vline 
WA_PDM_FUNCLOCAT_STR-BAUJJ sy-vline 
WA_PDM_FUNCLOCAT_STR-BAUMM sy-vline 
WA_PDM_FUNCLOCAT_STR-TYPBZ sy-vline 
WA_PDM_FUNCLOCAT_STR-EMATN sy-vline 
WA_PDM_FUNCLOCAT_STR-SERGE sy-vline 
WA_PDM_FUNCLOCAT_STR-ABCKZ sy-vline 
WA_PDM_FUNCLOCAT_STR-EQFNR sy-vline 
WA_PDM_FUNCLOCAT_STR-SWERK sy-vline 
WA_PDM_FUNCLOCAT_STR-MSGRP sy-vline 
WA_PDM_FUNCLOCAT_STR-BEBER sy-vline 
WA_PDM_FUNCLOCAT_STR-SELECTED sy-vline 
WA_PDM_FUNCLOCAT_STR-NOT_SELECTABLE sy-vline 
WA_PDM_FUNCLOCAT_STR-INACTIVE sy-vline 
WA_PDM_FUNCLOCAT_STR-STRNO sy-vline 
WA_PDM_FUNCLOCAT_STR-MAPAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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