ABAP Select data from SAP table LECI_EVENT_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LECI_EVENT_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 LECI_EVENT_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 LECI_EVENT_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_LECI_EVENT_DATA TYPE STANDARD TABLE OF LECI_EVENT_DATA,
      WA_LECI_EVENT_DATA TYPE LECI_EVENT_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: <LECI_EVENT_DATA> TYPE LECI_EVENT_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LECI_EVENT_DATA
*  INTO TABLE @DATA(IT_LECI_EVENT_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_LECI_EVENT_DATA INDEX 1 INTO DATA(WA_LECI_EVENT_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LECI_EVENT_DATA>-CLIENT = 1.
<LECI_EVENT_DATA>-GUID_EVENT_DATA = 1.
<LECI_EVENT_DATA>-SHPMNT_NUMB = 1.
<LECI_EVENT_DATA>-DELIV_NUMB = 1.
<LECI_EVENT_DATA>-VEHICLE_REG_NUMB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LECI_EVENT_DATA-TRAILER_REG_NUMB, sy-vline,
  WA_LECI_EVENT_DATA-CONT_REG_NUMB1, sy-vline,
  WA_LECI_EVENT_DATA-CONT_REG_NUMB2, sy-vline,
  WA_LECI_EVENT_DATA-VEND_NUMB, sy-vline,
  WA_LECI_EVENT_DATA-NAME_DRVR, sy-vline,
  WA_LECI_EVENT_DATA-FST_NAME_DRVR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LECI_EVENT_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_LECI_EVENT_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_LECI_EVENT_DATA INTO WA_LECI_EVENT_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 ALPHA, internal->external for field SHPMNT_NUMB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LECI_EVENT_DATA-SHPMNT_NUMB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LECI_EVENT_DATA-SHPMNT_NUMB.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field CONT_REG_NUMB1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LECI_EVENT_DATA-CONT_REG_NUMB1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LECI_EVENT_DATA-CONT_REG_NUMB1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONT_REG_NUMB2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LECI_EVENT_DATA-CONT_REG_NUMB2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LECI_EVENT_DATA-CONT_REG_NUMB2.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit SXIDN, internal->external for field NAME_CONTACT
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_LECI_EVENT_DATA-NAME_CONTACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LECI_EVENT_DATA-NAME_CONTACT.
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_LECI_EVENT_DATA_STR, 
CLIENT TYPE STRING,
GUID_EVENT_DATA TYPE STRING,
SHPMNT_NUMB TYPE STRING,
DELIV_NUMB TYPE STRING,
VEHICLE_REG_NUMB TYPE STRING,
TRAILER_REG_NUMB TYPE STRING,
CONT_REG_NUMB1 TYPE STRING,
CONT_REG_NUMB2 TYPE STRING,
VEND_NUMB TYPE STRING,
NAME_DRVR TYPE STRING,
FST_NAME_DRVR TYPE STRING,
NAME_CODRVR TYPE STRING,
FST_NAME_CODRVR TYPE STRING,
NAT_DRVR TYPE STRING,
CARD_NUMB TYPE STRING,
ALLOWED_WGHT TYPE STRING,
UNIT_OF_WGHT TYPE STRING,
PARKING_TXT TYPE STRING,
CARGO_TXT TYPE STRING,
STAGING_AREA TYPE STRING,
SHP_POINT TYPE STRING,
WHS_NUMB TYPE STRING,
WHS_GATE TYPE STRING,
COMPANY TYPE STRING,
CITY TYPE STRING,
DEPARTMENT TYPE STRING,
BUILDING TYPE STRING,
NAME_CONTACT TYPE STRING,
PHONE TYPE STRING,
ID_CARD_NUMB TYPE STRING,
CARR_OBJECTS TYPE STRING,
CHK_IN_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LECI_EVENT_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_LECI_EVENT_DATA_STR-CLIENT sy-vline 
WA_LECI_EVENT_DATA_STR-GUID_EVENT_DATA sy-vline 
WA_LECI_EVENT_DATA_STR-SHPMNT_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-DELIV_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-VEHICLE_REG_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-TRAILER_REG_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-CONT_REG_NUMB1 sy-vline 
WA_LECI_EVENT_DATA_STR-CONT_REG_NUMB2 sy-vline 
WA_LECI_EVENT_DATA_STR-VEND_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-NAME_DRVR sy-vline 
WA_LECI_EVENT_DATA_STR-FST_NAME_DRVR sy-vline 
WA_LECI_EVENT_DATA_STR-NAME_CODRVR sy-vline 
WA_LECI_EVENT_DATA_STR-FST_NAME_CODRVR sy-vline 
WA_LECI_EVENT_DATA_STR-NAT_DRVR sy-vline 
WA_LECI_EVENT_DATA_STR-CARD_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-ALLOWED_WGHT sy-vline 
WA_LECI_EVENT_DATA_STR-UNIT_OF_WGHT sy-vline 
WA_LECI_EVENT_DATA_STR-PARKING_TXT sy-vline 
WA_LECI_EVENT_DATA_STR-CARGO_TXT sy-vline 
WA_LECI_EVENT_DATA_STR-STAGING_AREA sy-vline 
WA_LECI_EVENT_DATA_STR-SHP_POINT sy-vline 
WA_LECI_EVENT_DATA_STR-WHS_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-WHS_GATE sy-vline 
WA_LECI_EVENT_DATA_STR-COMPANY sy-vline 
WA_LECI_EVENT_DATA_STR-CITY sy-vline 
WA_LECI_EVENT_DATA_STR-DEPARTMENT sy-vline 
WA_LECI_EVENT_DATA_STR-BUILDING sy-vline 
WA_LECI_EVENT_DATA_STR-NAME_CONTACT sy-vline 
WA_LECI_EVENT_DATA_STR-PHONE sy-vline 
WA_LECI_EVENT_DATA_STR-ID_CARD_NUMB sy-vline 
WA_LECI_EVENT_DATA_STR-CARR_OBJECTS sy-vline 
WA_LECI_EVENT_DATA_STR-CHK_IN_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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