ABAP Select data from SAP table QST007 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QST007 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 QST007. 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 QST007 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_QST007 TYPE STANDARD TABLE OF QST007,
      WA_QST007 TYPE QST007,
      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: <QST007> TYPE QST007.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_QST007.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM QST007
  INTO TABLE IT_QST007.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QST007
*  INTO TABLE @DATA(IT_QST0072).
*--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_QST007 INDEX 1 INTO DATA(WA_QST0072).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_QST007 ASSIGNING <QST007>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QST007>-MANDT = 1.
<QST007>-WAPOS = 1.
<QST007>-WARPL = 1.
<QST007>-WSTRA = 1.
<QST007>-WPPOS = 1.

ENDLOOP.

LOOP AT IT_QST007 INTO WA_QST007.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QST007-PSTXT, sy-vline,
  WA_QST007-ERNAM, sy-vline,
  WA_QST007-ERSDT, sy-vline,
  WA_QST007-AEDAT, sy-vline,
  WA_QST007-AENAM, sy-vline,
  WA_QST007-PLNTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QST007 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_QST007 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_QST007 INTO WA_QST007.


*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 WAPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QST007-WAPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-WAPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WARPL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QST007-WARPL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-WARPL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QST007-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QST007-PLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-PLNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PHYNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QST007-PHYNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-PHYNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QST007-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLOS2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QST007-PLOS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-PLOS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_QST007-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field REVLV
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_QST007-REVLV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-REVLV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QST007-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QST007-QMNUM.
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_QST007_STR, 
MANDT TYPE STRING,
WAPOS TYPE STRING,
WARPL TYPE STRING,
WSTRA TYPE STRING,
WPPOS TYPE STRING,
PSTXT TYPE STRING,
ERNAM TYPE STRING,
ERSDT TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
STATUS TYPE STRING,
LTKNZ TYPE STRING,
PHYNR TYPE STRING,
PRART TYPE STRING,
PRTYP TYPE STRING,
PN_NR TYPE STRING,
GBTYP TYPE STRING,
MENGE TYPE STRING,
MEINH TYPE STRING,
PLOS2 TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
REVLV TYPE STRING,
CHARG TYPE STRING,
KTEXT TYPE STRING,
QAUTH TYPE STRING,
LGORT TYPE STRING,
ABORT TYPE STRING,
ABDAU TYPE STRING,
ABDAT TYPE STRING,
ABINF TYPE STRING,
STABICON TYPE STRING,
EINGDT TYPE STRING,
EINLDT TYPE STRING,
AUSLDT TYPE STRING,
QMNUM TYPE STRING,
STABICONTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QST007_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_QST007_STR-MANDT sy-vline 
WA_QST007_STR-WAPOS sy-vline 
WA_QST007_STR-WARPL sy-vline 
WA_QST007_STR-WSTRA sy-vline 
WA_QST007_STR-WPPOS sy-vline 
WA_QST007_STR-PSTXT sy-vline 
WA_QST007_STR-ERNAM sy-vline 
WA_QST007_STR-ERSDT sy-vline 
WA_QST007_STR-AEDAT sy-vline 
WA_QST007_STR-AENAM sy-vline 
WA_QST007_STR-PLNTY sy-vline 
WA_QST007_STR-PLNNR sy-vline 
WA_QST007_STR-PLNAL sy-vline 
WA_QST007_STR-STATUS sy-vline 
WA_QST007_STR-LTKNZ sy-vline 
WA_QST007_STR-PHYNR sy-vline 
WA_QST007_STR-PRART sy-vline 
WA_QST007_STR-PRTYP sy-vline 
WA_QST007_STR-PN_NR sy-vline 
WA_QST007_STR-GBTYP sy-vline 
WA_QST007_STR-MENGE sy-vline 
WA_QST007_STR-MEINH sy-vline 
WA_QST007_STR-PLOS2 sy-vline 
WA_QST007_STR-MATNR sy-vline 
WA_QST007_STR-WERKS sy-vline 
WA_QST007_STR-REVLV sy-vline 
WA_QST007_STR-CHARG sy-vline 
WA_QST007_STR-KTEXT sy-vline 
WA_QST007_STR-QAUTH sy-vline 
WA_QST007_STR-LGORT sy-vline 
WA_QST007_STR-ABORT sy-vline 
WA_QST007_STR-ABDAU sy-vline 
WA_QST007_STR-ABDAT sy-vline 
WA_QST007_STR-ABINF sy-vline 
WA_QST007_STR-STABICON sy-vline 
WA_QST007_STR-EINGDT sy-vline 
WA_QST007_STR-EINLDT sy-vline 
WA_QST007_STR-AUSLDT sy-vline 
WA_QST007_STR-QMNUM sy-vline 
WA_QST007_STR-STABICONTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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