ABAP Select data from SAP table LTIF_ACTUAL_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LTIF_ACTUAL_DATA
*  INTO TABLE @DATA(IT_LTIF_ACTUAL_DATA2).
*--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_LTIF_ACTUAL_DATA INDEX 1 INTO DATA(WA_LTIF_ACTUAL_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LTIF_ACTUAL_DATA>-LOCAT = 1.
<LTIF_ACTUAL_DATA>-ORGLV1 = 1.
<LTIF_ACTUAL_DATA>-ORGLV2 = 1.
<LTIF_ACTUAL_DATA>-ORGLV3 = 1.
<LTIF_ACTUAL_DATA>-DOCIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LTIF_ACTUAL_DATA-HUCMP, sy-vline,
  WA_LTIF_ACTUAL_DATA-BATCH, sy-vline,
  WA_LTIF_ACTUAL_DATA-NEWDS, sy-vline,
  WA_LTIF_ACTUAL_DATA-LOCLV3, sy-vline,
  WA_LTIF_ACTUAL_DATA-NOUPD, sy-vline,
  WA_LTIF_ACTUAL_DATA-DIFFL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LTIF_ACTUAL_DATA 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_LTIF_ACTUAL_DATA 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_LTIF_ACTUAL_DATA INTO WA_LTIF_ACTUAL_DATA.


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

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

*Conversion exit ALPHA, internal->external for field HUNUMHUD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LTIF_ACTUAL_DATA-HUNUMHUD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LTIF_ACTUAL_DATA-HUNUMHUD.
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_LTIF_ACTUAL_DATA_STR, 
LOCAT TYPE STRING,
ORGLV1 TYPE STRING,
ORGLV2 TYPE STRING,
ORGLV3 TYPE STRING,
DOCIT TYPE STRING,
HUCMP TYPE STRING,
BATCH TYPE STRING,
NEWDS TYPE STRING,
LOCLV3 TYPE STRING,
NOUPD TYPE STRING,
DIFFL TYPE STRING,
DIFIN TYPE STRING,
ACTQT TYPE STRING,
UOMBA TYPE STRING,
SPLFL TYPE STRING,
SPLQT TYPE STRING,
ZCHFL TYPE STRING,
ZCHQT TYPE STRING,
HUNUMHUS TYPE STRING,
HUTYPHUS TYPE STRING,
HUNUMHUD TYPE STRING,
HUTYPHUD TYPE STRING,
LTRM_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LTIF_ACTUAL_DATA_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_LTIF_ACTUAL_DATA_STR-LOCAT sy-vline 
WA_LTIF_ACTUAL_DATA_STR-ORGLV1 sy-vline 
WA_LTIF_ACTUAL_DATA_STR-ORGLV2 sy-vline 
WA_LTIF_ACTUAL_DATA_STR-ORGLV3 sy-vline 
WA_LTIF_ACTUAL_DATA_STR-DOCIT sy-vline 
WA_LTIF_ACTUAL_DATA_STR-HUCMP sy-vline 
WA_LTIF_ACTUAL_DATA_STR-BATCH sy-vline 
WA_LTIF_ACTUAL_DATA_STR-NEWDS sy-vline 
WA_LTIF_ACTUAL_DATA_STR-LOCLV3 sy-vline 
WA_LTIF_ACTUAL_DATA_STR-NOUPD sy-vline 
WA_LTIF_ACTUAL_DATA_STR-DIFFL sy-vline 
WA_LTIF_ACTUAL_DATA_STR-DIFIN sy-vline 
WA_LTIF_ACTUAL_DATA_STR-ACTQT sy-vline 
WA_LTIF_ACTUAL_DATA_STR-UOMBA sy-vline 
WA_LTIF_ACTUAL_DATA_STR-SPLFL sy-vline 
WA_LTIF_ACTUAL_DATA_STR-SPLQT sy-vline 
WA_LTIF_ACTUAL_DATA_STR-ZCHFL sy-vline 
WA_LTIF_ACTUAL_DATA_STR-ZCHQT sy-vline 
WA_LTIF_ACTUAL_DATA_STR-HUNUMHUS sy-vline 
WA_LTIF_ACTUAL_DATA_STR-HUTYPHUS sy-vline 
WA_LTIF_ACTUAL_DATA_STR-HUNUMHUD sy-vline 
WA_LTIF_ACTUAL_DATA_STR-HUTYPHUD sy-vline 
WA_LTIF_ACTUAL_DATA_STR-LTRM_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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