ABAP Select data from SAP table FLQITEMFI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FLQITEMFI
*  INTO TABLE @DATA(IT_FLQITEMFI2).
*--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_FLQITEMFI INDEX 1 INTO DATA(WA_FLQITEMFI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FLQITEMFI>-MANDT = 1.
<FLQITEMFI>-ZBUKR = 1.
<FLQITEMFI>-BELNR = 1.
<FLQITEMFI>-GJAHR = 1.
<FLQITEMFI>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FLQITEMFI-BUKRS, sy-vline,
  WA_FLQITEMFI-GSBER, sy-vline,
  WA_FLQITEMFI-LQPOS, sy-vline,
  WA_FLQITEMFI-LQORIG, sy-vline,
  WA_FLQITEMFI-GUID, sy-vline,
  WA_FLQITEMFI-HKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FLQITEMFI 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_FLQITEMFI 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_FLQITEMFI INTO WA_FLQITEMFI.


*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_FLQITEMFI-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FLQITEMFI-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FLQITEMFI-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FLQITEMFI-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FLQITEMFI-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FLQITEMFI-PRCTR.
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_FLQITEMFI_STR, 
MANDT TYPE STRING,
ZBUKR TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
LQPOS TYPE STRING,
LQORIG TYPE STRING,
GUID TYPE STRING,
HKONT TYPE STRING,
LQDAY TYPE STRING,
TWAER TYPE STRING,
WRBTR TYPE STRING,
DMBTR TYPE STRING,
XDELETE TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
UNAME TYPE STRING,
PKOART TYPE STRING,
PARTNER TYPE STRING,
KWBTR TYPE STRING,
VBUND TYPE STRING,
PRCTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FLQITEMFI_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_FLQITEMFI_STR-MANDT sy-vline 
WA_FLQITEMFI_STR-ZBUKR sy-vline 
WA_FLQITEMFI_STR-BELNR sy-vline 
WA_FLQITEMFI_STR-GJAHR sy-vline 
WA_FLQITEMFI_STR-BUZEI sy-vline 
WA_FLQITEMFI_STR-BUKRS sy-vline 
WA_FLQITEMFI_STR-GSBER sy-vline 
WA_FLQITEMFI_STR-LQPOS sy-vline 
WA_FLQITEMFI_STR-LQORIG sy-vline 
WA_FLQITEMFI_STR-GUID sy-vline 
WA_FLQITEMFI_STR-HKONT sy-vline 
WA_FLQITEMFI_STR-LQDAY sy-vline 
WA_FLQITEMFI_STR-TWAER sy-vline 
WA_FLQITEMFI_STR-WRBTR sy-vline 
WA_FLQITEMFI_STR-DMBTR sy-vline 
WA_FLQITEMFI_STR-XDELETE sy-vline 
WA_FLQITEMFI_STR-CPUDT sy-vline 
WA_FLQITEMFI_STR-CPUTM sy-vline 
WA_FLQITEMFI_STR-UNAME sy-vline 
WA_FLQITEMFI_STR-PKOART sy-vline 
WA_FLQITEMFI_STR-PARTNER sy-vline 
WA_FLQITEMFI_STR-KWBTR sy-vline 
WA_FLQITEMFI_STR-VBUND sy-vline 
WA_FLQITEMFI_STR-PRCTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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