ABAP Select data from SAP table QFOBJ into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QFOBJ 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 QFOBJ. 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 QFOBJ 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_QFOBJ TYPE STANDARD TABLE OF QFOBJ,
      WA_QFOBJ TYPE QFOBJ,
      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: <QFOBJ> TYPE QFOBJ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QFOBJ
*  INTO TABLE @DATA(IT_QFOBJ2).
*--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_QFOBJ INDEX 1 INTO DATA(WA_QFOBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QFOBJ>-QMNUM = 1.
<QFOBJ>-TMP = 1.
<QFOBJ>-FEART = 1.
<QFOBJ>-SERIALNR = 1.
<QFOBJ>-EQUNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QFOBJ-TPLNR, sy-vline,
  WA_QFOBJ-PRUEFLOS, sy-vline,
  WA_QFOBJ-PNLKN, sy-vline,
  WA_QFOBJ-QMART, sy-vline,
  WA_QFOBJ-OBJNR_QM, sy-vline,
  WA_QFOBJ-OBJNR_LOS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QFOBJ 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_QFOBJ 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_QFOBJ INTO WA_QFOBJ.


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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_QFOBJ-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QFOBJ-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MGEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QFOBJ-MGEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QFOBJ-MGEIN.
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_QFOBJ_STR, 
QMNUM TYPE STRING,
TMP TYPE STRING,
FEART TYPE STRING,
SERIALNR TYPE STRING,
EQUNR TYPE STRING,
TPLNR TYPE STRING,
PRUEFLOS TYPE STRING,
PNLKN TYPE STRING,
QMART TYPE STRING,
OBJNR_QM TYPE STRING,
OBJNR_LOS TYPE STRING,
OBJNR_PVO TYPE STRING,
AUFPL TYPE STRING,
LAST_POS TYPE STRING,
MARK TYPE STRING,
LAST_FENUM TYPE STRING,
LAST_MANUM TYPE STRING,
E_ACT TYPE STRING,
E_READ TYPE STRING,
E_ENQUEUE TYPE STRING,
I_UPDATE TYPE STRING,
I_DELETE TYPE STRING,
I_PROCESS TYPE STRING,
ACTIVE TYPE STRING,
CLOSE TYPE STRING,
PAR_CALL TYPE STRING,
PAR_READ TYPE STRING,
NOT_CREATED TYPE STRING,
KZ_FE_ALL TYPE STRING,
POS_FROM TYPE STRING,
POS_TO TYPE STRING,
KZ_FE_LOS TYPE STRING,
KZ_FE_PVO TYPE STRING,
KZ_FE_MK TYPE STRING,
KZ_FE_PROBE TYPE STRING,
QMTXT TYPE STRING,
ARTPR TYPE STRING,
HERKZ TYPE STRING,
PRIOK TYPE STRING,
QMKAT TYPE STRING,
QMGRP TYPE STRING,
QMCOD TYPE STRING,
MZEIT TYPE STRING,
QMDAT TYPE STRING,
QMNAM TYPE STRING,
RBNR TYPE STRING,
RBNRI TYPE STRING,
VORNR TYPE STRING,
VORKTXT TYPE STRING,
FEARTTXT TYPE STRING,
TXTSA TYPE STRING,
TXTGRSA TYPE STRING,
QMARTX TYPE STRING,
INDTX TYPE STRING,
KZMLA TYPE STRING,
CROBJTY TYPE STRING,
ARBPL TYPE STRING,
ARBPLWERK TYPE STRING,
RKMNG TYPE STRING,
MGEIN TYPE STRING,
BZMNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QFOBJ_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_QFOBJ_STR-QMNUM sy-vline 
WA_QFOBJ_STR-TMP sy-vline 
WA_QFOBJ_STR-FEART sy-vline 
WA_QFOBJ_STR-SERIALNR sy-vline 
WA_QFOBJ_STR-EQUNR sy-vline 
WA_QFOBJ_STR-TPLNR sy-vline 
WA_QFOBJ_STR-PRUEFLOS sy-vline 
WA_QFOBJ_STR-PNLKN sy-vline 
WA_QFOBJ_STR-QMART sy-vline 
WA_QFOBJ_STR-OBJNR_QM sy-vline 
WA_QFOBJ_STR-OBJNR_LOS sy-vline 
WA_QFOBJ_STR-OBJNR_PVO sy-vline 
WA_QFOBJ_STR-AUFPL sy-vline 
WA_QFOBJ_STR-LAST_POS sy-vline 
WA_QFOBJ_STR-MARK sy-vline 
WA_QFOBJ_STR-LAST_FENUM sy-vline 
WA_QFOBJ_STR-LAST_MANUM sy-vline 
WA_QFOBJ_STR-E_ACT sy-vline 
WA_QFOBJ_STR-E_READ sy-vline 
WA_QFOBJ_STR-E_ENQUEUE sy-vline 
WA_QFOBJ_STR-I_UPDATE sy-vline 
WA_QFOBJ_STR-I_DELETE sy-vline 
WA_QFOBJ_STR-I_PROCESS sy-vline 
WA_QFOBJ_STR-ACTIVE sy-vline 
WA_QFOBJ_STR-CLOSE sy-vline 
WA_QFOBJ_STR-PAR_CALL sy-vline 
WA_QFOBJ_STR-PAR_READ sy-vline 
WA_QFOBJ_STR-NOT_CREATED sy-vline 
WA_QFOBJ_STR-KZ_FE_ALL sy-vline 
WA_QFOBJ_STR-POS_FROM sy-vline 
WA_QFOBJ_STR-POS_TO sy-vline 
WA_QFOBJ_STR-KZ_FE_LOS sy-vline 
WA_QFOBJ_STR-KZ_FE_PVO sy-vline 
WA_QFOBJ_STR-KZ_FE_MK sy-vline 
WA_QFOBJ_STR-KZ_FE_PROBE sy-vline 
WA_QFOBJ_STR-QMTXT sy-vline 
WA_QFOBJ_STR-ARTPR sy-vline 
WA_QFOBJ_STR-HERKZ sy-vline 
WA_QFOBJ_STR-PRIOK sy-vline 
WA_QFOBJ_STR-QMKAT sy-vline 
WA_QFOBJ_STR-QMGRP sy-vline 
WA_QFOBJ_STR-QMCOD sy-vline 
WA_QFOBJ_STR-MZEIT sy-vline 
WA_QFOBJ_STR-QMDAT sy-vline 
WA_QFOBJ_STR-QMNAM sy-vline 
WA_QFOBJ_STR-RBNR sy-vline 
WA_QFOBJ_STR-RBNRI sy-vline 
WA_QFOBJ_STR-VORNR sy-vline 
WA_QFOBJ_STR-VORKTXT sy-vline 
WA_QFOBJ_STR-FEARTTXT sy-vline 
WA_QFOBJ_STR-TXTSA sy-vline 
WA_QFOBJ_STR-TXTGRSA sy-vline 
WA_QFOBJ_STR-QMARTX sy-vline 
WA_QFOBJ_STR-INDTX sy-vline 
WA_QFOBJ_STR-KZMLA sy-vline 
WA_QFOBJ_STR-CROBJTY sy-vline 
WA_QFOBJ_STR-ARBPL sy-vline 
WA_QFOBJ_STR-ARBPLWERK sy-vline 
WA_QFOBJ_STR-RKMNG sy-vline 
WA_QFOBJ_STR-MGEIN sy-vline 
WA_QFOBJ_STR-BZMNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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