ABAP Select data from SAP table QSTRE 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 QSTRE 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 QSTRE. 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 QSTRE 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_QSTRE TYPE STANDARD TABLE OF QSTRE,
      WA_QSTRE TYPE QSTRE,
      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: <QSTRE> TYPE QSTRE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QSTRE
*  INTO TABLE @DATA(IT_QSTRE2).
*--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_QSTRE INDEX 1 INTO DATA(WA_QSTRE2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QSTRE-DATHER, sy-vline,
  WA_QSTRE-FPRCD, sy-vline,
  WA_QSTRE-QSREP, sy-vline,
  WA_QSTRE-QEKAR, sy-vline,
  WA_QSTRE-KZDPC, sy-vline,
  WA_QSTRE-STECD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QSTRE 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_QSTRE 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_QSTRE INTO WA_QSTRE.


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

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

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QSSHB
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-QSSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-QSSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QSSHH
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-QSSHH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-QSSHH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QBSHB
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-QBSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-QBSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QBSHH
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-QBSHH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-QBSHH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QSFBT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-QSFBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-QSFBT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QSFBH
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-QSFBH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-QSFBH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE-KURSF.
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_QSTRE_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
GJAHR TYPE STRING,
DATHER TYPE STRING,
FPRCD TYPE STRING,
QSREP TYPE STRING,
QEKAR TYPE STRING,
KZDPC TYPE STRING,
STECD TYPE STRING,
STCEG TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
STRAS TYPE STRING,
GBDAT TYPE STRING,
GBORT TYPE STRING,
GBPRO TYPE STRING,
SEXKZ TYPE STRING,
STKZN TYPE STRING,
REGIO TYPE STRING,
QLAND TYPE STRING,
QPROZ TYPE STRING,
BUDAT TYPE STRING,
QSSKZ TYPE STRING,
QSZNR TYPE STRING,
WRBTR TYPE STRING,
DMBTR TYPE STRING,
QSSHB TYPE STRING,
QSSHH TYPE STRING,
QBSHB TYPE STRING,
QBSHH TYPE STRING,
QSFBT TYPE STRING,
QSFBH TYPE STRING,
KURSF TYPE STRING,
WAERQ TYPE STRING,
NOHIJ TYPE STRING,
LAND1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QSTRE_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_QSTRE_STR-MANDT sy-vline 
WA_QSTRE_STR-BUKRS sy-vline 
WA_QSTRE_STR-BELNR sy-vline 
WA_QSTRE_STR-BUZEI sy-vline 
WA_QSTRE_STR-GJAHR sy-vline 
WA_QSTRE_STR-DATHER sy-vline 
WA_QSTRE_STR-FPRCD sy-vline 
WA_QSTRE_STR-QSREP sy-vline 
WA_QSTRE_STR-QEKAR sy-vline 
WA_QSTRE_STR-KZDPC sy-vline 
WA_QSTRE_STR-STECD sy-vline 
WA_QSTRE_STR-STCEG sy-vline 
WA_QSTRE_STR-NAME1 sy-vline 
WA_QSTRE_STR-NAME2 sy-vline 
WA_QSTRE_STR-ORT01 sy-vline 
WA_QSTRE_STR-PSTLZ sy-vline 
WA_QSTRE_STR-STRAS sy-vline 
WA_QSTRE_STR-GBDAT sy-vline 
WA_QSTRE_STR-GBORT sy-vline 
WA_QSTRE_STR-GBPRO sy-vline 
WA_QSTRE_STR-SEXKZ sy-vline 
WA_QSTRE_STR-STKZN sy-vline 
WA_QSTRE_STR-REGIO sy-vline 
WA_QSTRE_STR-QLAND sy-vline 
WA_QSTRE_STR-QPROZ sy-vline 
WA_QSTRE_STR-BUDAT sy-vline 
WA_QSTRE_STR-QSSKZ sy-vline 
WA_QSTRE_STR-QSZNR sy-vline 
WA_QSTRE_STR-WRBTR sy-vline 
WA_QSTRE_STR-DMBTR sy-vline 
WA_QSTRE_STR-QSSHB sy-vline 
WA_QSTRE_STR-QSSHH sy-vline 
WA_QSTRE_STR-QBSHB sy-vline 
WA_QSTRE_STR-QBSHH sy-vline 
WA_QSTRE_STR-QSFBT sy-vline 
WA_QSTRE_STR-QSFBH sy-vline 
WA_QSTRE_STR-KURSF sy-vline 
WA_QSTRE_STR-WAERQ sy-vline 
WA_QSTRE_STR-NOHIJ sy-vline 
WA_QSTRE_STR-LAND1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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