ABAP Select data from SAP table QFLTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QFLTP
*  INTO TABLE @DATA(IT_QFLTP2).
*--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_QFLTP INDEX 1 INTO DATA(WA_QFLTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QFLTP>-SOLLWERT = 1.
<QFLTP>-TOLERANZOB = 1.
<QFLTP>-TOLERANZUN = 1.
<QFLTP>-TOLERWEIOB = 1.
<QFLTP>-TOLERWEIUN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QFLTP-KLASBREITE, sy-vline,
  WA_QFLTP-KLASMITTE, sy-vline,
  WA_QFLTP-GRENZEOB1, sy-vline,
  WA_QFLTP-GRENZEUN1, sy-vline,
  WA_QFLTP-GRENZEOB2, sy-vline,
  WA_QFLTP-GRENZEUN2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QFLTP 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_QFLTP 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_QFLTP INTO WA_QFLTP.


*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_QFLTP_STR, 
SOLLWERT TYPE STRING,
TOLERANZOB TYPE STRING,
TOLERANZUN TYPE STRING,
TOLERWEIOB TYPE STRING,
TOLERWEIUN TYPE STRING,
KLASBREITE TYPE STRING,
KLASMITTE TYPE STRING,
GRENZEOB1 TYPE STRING,
GRENZEUN1 TYPE STRING,
GRENZEOB2 TYPE STRING,
GRENZEUN2 TYPE STRING,
PLAUSIOBEN TYPE STRING,
PLAUSIUNTE TYPE STRING,
KFAKTOR TYPE STRING,
PROZUMF TYPE STRING,
PROZAZL TYPE STRING,
LOSUMF TYPE STRING,
QRKFPAR1 TYPE STRING,
QRKFPAR2 TYPE STRING,
QRKFPAR3 TYPE STRING,
QRKFPAR4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QFLTP_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_QFLTP_STR-SOLLWERT sy-vline 
WA_QFLTP_STR-TOLERANZOB sy-vline 
WA_QFLTP_STR-TOLERANZUN sy-vline 
WA_QFLTP_STR-TOLERWEIOB sy-vline 
WA_QFLTP_STR-TOLERWEIUN sy-vline 
WA_QFLTP_STR-KLASBREITE sy-vline 
WA_QFLTP_STR-KLASMITTE sy-vline 
WA_QFLTP_STR-GRENZEOB1 sy-vline 
WA_QFLTP_STR-GRENZEUN1 sy-vline 
WA_QFLTP_STR-GRENZEOB2 sy-vline 
WA_QFLTP_STR-GRENZEUN2 sy-vline 
WA_QFLTP_STR-PLAUSIOBEN sy-vline 
WA_QFLTP_STR-PLAUSIUNTE sy-vline 
WA_QFLTP_STR-KFAKTOR sy-vline 
WA_QFLTP_STR-PROZUMF sy-vline 
WA_QFLTP_STR-PROZAZL sy-vline 
WA_QFLTP_STR-LOSUMF sy-vline 
WA_QFLTP_STR-QRKFPAR1 sy-vline 
WA_QFLTP_STR-QRKFPAR2 sy-vline 
WA_QFLTP_STR-QRKFPAR3 sy-vline 
WA_QFLTP_STR-QRKFPAR4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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