ABAP Select data from SAP table IFUNCNLLOCDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFUNCNLLOCDATA
*  INTO TABLE @DATA(IT_IFUNCNLLOCDATA2).
*--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_IFUNCNLLOCDATA INDEX 1 INTO DATA(WA_IFUNCNLLOCDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFUNCNLLOCDATA>-MANDT = 1.
<IFUNCNLLOCDATA>-EQUIPMENT = 1.
<IFUNCNLLOCDATA>-MAINTENANCENOTIFICATION = 1.
<IFUNCNLLOCDATA>-MAINTENANCEORDER = 1.
<IFUNCNLLOCDATA>-FUNCTIONALLOCATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFUNCNLLOCDATA-DFSMAINTTECHSTSAGGRGNISSTPPD, sy-vline,
  WA_IFUNCNLLOCDATA-DFSMAINTEQUIPTECHSTATUSPROFILE, sy-vline,
  WA_IFUNCNLLOCDATA-DFSMAINTHIERARCHYRANKVALUE, sy-vline,
  WA_IFUNCNLLOCDATA-DFSMAINTHIERPARENTRANKVALUE, sy-vline,
  WA_IFUNCNLLOCDATA-DFSMAINTSUPERORDINATEEQUIPNMBR, sy-vline,
  WA_IFUNCNLLOCDATA-DFSMAINTEQUIPMENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFUNCNLLOCDATA 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_IFUNCNLLOCDATA 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_IFUNCNLLOCDATA INTO WA_IFUNCNLLOCDATA.


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

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

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

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

*Conversion exit ALPHA, internal->external for field DFSMAINTSUPERORDINATEEQUIPNMBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFUNCNLLOCDATA-DFSMAINTSUPERORDINATEEQUIPNMBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFUNCNLLOCDATA-DFSMAINTSUPERORDINATEEQUIPNMBR.
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_IFUNCNLLOCDATA_STR, 
MANDT TYPE STRING,
EQUIPMENT TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
MAINTENANCEORDER TYPE STRING,
FUNCTIONALLOCATION TYPE STRING,
DFSMAINTTECHSTSAGGRGNISSTPPD TYPE STRING,
DFSMAINTEQUIPTECHSTATUSPROFILE TYPE STRING,
DFSMAINTHIERARCHYRANKVALUE TYPE STRING,
DFSMAINTHIERPARENTRANKVALUE TYPE STRING,
DFSMAINTSUPERORDINATEEQUIPNMBR TYPE STRING,
DFSMAINTEQUIPMENTTYPE TYPE STRING,
DFSMAINTNOTIFTECHSTATUSPROFILE TYPE STRING,
DFSMAINTNOTIFTECHSTATUS TYPE STRING,
DFSMAINTORDERTECHSTATUS TYPE STRING,
DFSMAINTORDTECHSTATUSPROFILE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFUNCNLLOCDATA_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_IFUNCNLLOCDATA_STR-MANDT sy-vline 
WA_IFUNCNLLOCDATA_STR-EQUIPMENT sy-vline 
WA_IFUNCNLLOCDATA_STR-MAINTENANCENOTIFICATION sy-vline 
WA_IFUNCNLLOCDATA_STR-MAINTENANCEORDER sy-vline 
WA_IFUNCNLLOCDATA_STR-FUNCTIONALLOCATION sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTTECHSTSAGGRGNISSTPPD sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTEQUIPTECHSTATUSPROFILE sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTHIERARCHYRANKVALUE sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTHIERPARENTRANKVALUE sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTSUPERORDINATEEQUIPNMBR sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTEQUIPMENTTYPE sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTNOTIFTECHSTATUSPROFILE sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTNOTIFTECHSTATUS sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTORDERTECHSTATUS sy-vline 
WA_IFUNCNLLOCDATA_STR-DFSMAINTORDTECHSTATUSPROFILE sy-vline      INTO ld_text SEPARATED BY SPACE.

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