ABAP Select data from SAP table UCL_S_LP_FDISP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCL_S_LP_FDISP
*  INTO TABLE @DATA(IT_UCL_S_LP_FDISP2).
*--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_UCL_S_LP_FDISP INDEX 1 INTO DATA(WA_UCL_S_LP_FDISP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCL_S_LP_FDISP>-LIST = 1.
<UCL_S_LP_FDISP>-STRUCT = 1.
<UCL_S_LP_FDISP>-FIELDNAME = 1.
<UCL_S_LP_FDISP>-DRD = 1.
<UCL_S_LP_FDISP>-HRY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCL_S_LP_FDISP-HRYNAME, sy-vline,
  WA_UCL_S_LP_FDISP-DESCR, sy-vline,
  WA_UCL_S_LP_FDISP-KEY, sy-vline,
  WA_UCL_S_LP_FDISP-TXT, sy-vline,
  WA_UCL_S_LP_FDISP-LNNR, sy-vline,
  WA_UCL_S_LP_FDISP-KEY_FIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCL_S_LP_FDISP 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_UCL_S_LP_FDISP 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_UCL_S_LP_FDISP INTO WA_UCL_S_LP_FDISP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_UCL_S_LP_FDISP_STR, 
LIST TYPE STRING,
STRUCT TYPE STRING,
FIELDNAME TYPE STRING,
DRD TYPE STRING,
HRY TYPE STRING,
HRYNAME TYPE STRING,
DESCR TYPE STRING,
KEY TYPE STRING,
TXT TYPE STRING,
LNNR TYPE STRING,
KEY_FIELD TYPE STRING,
FLG_HEAD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCL_S_LP_FDISP_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_UCL_S_LP_FDISP_STR-LIST sy-vline 
WA_UCL_S_LP_FDISP_STR-STRUCT sy-vline 
WA_UCL_S_LP_FDISP_STR-FIELDNAME sy-vline 
WA_UCL_S_LP_FDISP_STR-DRD sy-vline 
WA_UCL_S_LP_FDISP_STR-HRY sy-vline 
WA_UCL_S_LP_FDISP_STR-HRYNAME sy-vline 
WA_UCL_S_LP_FDISP_STR-DESCR sy-vline 
WA_UCL_S_LP_FDISP_STR-KEY sy-vline 
WA_UCL_S_LP_FDISP_STR-TXT sy-vline 
WA_UCL_S_LP_FDISP_STR-LNNR sy-vline 
WA_UCL_S_LP_FDISP_STR-KEY_FIELD sy-vline 
WA_UCL_S_LP_FDISP_STR-FLG_HEAD sy-vline      INTO ld_text SEPARATED BY SPACE.

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