ABAP Select data from SAP table SFLTRIP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SFLTRIP
*  INTO TABLE @DATA(IT_SFLTRIP2).
*--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_SFLTRIP INDEX 1 INTO DATA(WA_SFLTRIP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SFLTRIP>-MANDT = 1.
<SFLTRIP>-AGENCYNUM = 1.
<SFLTRIP>-TRIPNUM = 1.
<SFLTRIP>-CUSTOMID = 1.
<SFLTRIP>-FLCONN1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SFLTRIP-FLDATE1, sy-vline,
  WA_SFLTRIP-FLCONN2, sy-vline,
  WA_SFLTRIP-FLDATE2, sy-vline,
  WA_SFLTRIP-CLASS, sy-vline,
  WA_SFLTRIP-NUMADULT, sy-vline,
  WA_SFLTRIP-NUMCHILD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SFLTRIP 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_SFLTRIP 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_SFLTRIP INTO WA_SFLTRIP.


*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_SFLTRIP_STR, 
MANDT TYPE STRING,
AGENCYNUM TYPE STRING,
TRIPNUM TYPE STRING,
CUSTOMID TYPE STRING,
FLCONN1 TYPE STRING,
FLDATE1 TYPE STRING,
FLCONN2 TYPE STRING,
FLDATE2 TYPE STRING,
CLASS TYPE STRING,
NUMADULT TYPE STRING,
NUMCHILD TYPE STRING,
NUMINFANT TYPE STRING,
TRIPPRICE TYPE STRING,
TRIPTAX TYPE STRING,
CURRENCY TYPE STRING,
ORDERDATE TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SFLTRIP_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_SFLTRIP_STR-MANDT sy-vline 
WA_SFLTRIP_STR-AGENCYNUM sy-vline 
WA_SFLTRIP_STR-TRIPNUM sy-vline 
WA_SFLTRIP_STR-CUSTOMID sy-vline 
WA_SFLTRIP_STR-FLCONN1 sy-vline 
WA_SFLTRIP_STR-FLDATE1 sy-vline 
WA_SFLTRIP_STR-FLCONN2 sy-vline 
WA_SFLTRIP_STR-FLDATE2 sy-vline 
WA_SFLTRIP_STR-CLASS sy-vline 
WA_SFLTRIP_STR-NUMADULT sy-vline 
WA_SFLTRIP_STR-NUMCHILD sy-vline 
WA_SFLTRIP_STR-NUMINFANT sy-vline 
WA_SFLTRIP_STR-TRIPPRICE sy-vline 
WA_SFLTRIP_STR-TRIPTAX sy-vline 
WA_SFLTRIP_STR-CURRENCY sy-vline 
WA_SFLTRIP_STR-ORDERDATE sy-vline 
WA_SFLTRIP_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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