ABAP Select data from SAP table FISS_EVLIT_UPD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FISS_EVLIT_UPD
*  INTO TABLE @DATA(IT_FISS_EVLIT_UPD2).
*--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_FISS_EVLIT_UPD INDEX 1 INTO DATA(WA_FISS_EVLIT_UPD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FISS_EVLIT_UPD>-BUKRS = 1.
<FISS_EVLIT_UPD>-BELNR = 1.
<FISS_EVLIT_UPD>-GJAHR = 1.
<FISS_EVLIT_UPD>-BUZEI = 1.
<FISS_EVLIT_UPD>-KOART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FISS_EVLIT_UPD-UMSKZ, sy-vline,
  WA_FISS_EVLIT_UPD-BSCHL, sy-vline,
  WA_FISS_EVLIT_UPD-BSTAT, sy-vline,
  WA_FISS_EVLIT_UPD-MWSKZ, sy-vline,
  WA_FISS_EVLIT_UPD-ZUONR, sy-vline,
  WA_FISS_EVLIT_UPD-SGTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FISS_EVLIT_UPD 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_FISS_EVLIT_UPD 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_FISS_EVLIT_UPD INTO WA_FISS_EVLIT_UPD.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FISS_EVLIT_UPD-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FISS_EVLIT_UPD-GJAHR.
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_FISS_EVLIT_UPD_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
KOART TYPE STRING,
UMSKZ TYPE STRING,
BSCHL TYPE STRING,
BSTAT TYPE STRING,
MWSKZ TYPE STRING,
ZUONR TYPE STRING,
SGTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FISS_EVLIT_UPD_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_FISS_EVLIT_UPD_STR-BUKRS sy-vline 
WA_FISS_EVLIT_UPD_STR-BELNR sy-vline 
WA_FISS_EVLIT_UPD_STR-GJAHR sy-vline 
WA_FISS_EVLIT_UPD_STR-BUZEI sy-vline 
WA_FISS_EVLIT_UPD_STR-KOART sy-vline 
WA_FISS_EVLIT_UPD_STR-UMSKZ sy-vline 
WA_FISS_EVLIT_UPD_STR-BSCHL sy-vline 
WA_FISS_EVLIT_UPD_STR-BSTAT sy-vline 
WA_FISS_EVLIT_UPD_STR-MWSKZ sy-vline 
WA_FISS_EVLIT_UPD_STR-ZUONR sy-vline 
WA_FISS_EVLIT_UPD_STR-SGTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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