ABAP Select data from SAP table QSTRE_BF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP QSTRE_BF 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_BF. 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_BF 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_BF TYPE STANDARD TABLE OF QSTRE_BF,
      WA_QSTRE_BF TYPE QSTRE_BF,
      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_BF> TYPE QSTRE_BF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QSTRE_BF
*  INTO TABLE @DATA(IT_QSTRE_BF2).
*--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_BF INDEX 1 INTO DATA(WA_QSTRE_BF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QSTRE_BF>-BUKRS = 1.
<QSTRE_BF>-BUDAT = 1.
<QSTRE_BF>-QSREP = 1.
<QSTRE_BF>-FPRCD = 1.
<QSTRE_BF>-STECD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QSTRE_BF-GJAHR, sy-vline,
  WA_QSTRE_BF-NAME1, sy-vline,
  WA_QSTRE_BF-NOHIJ, sy-vline,
  WA_QSTRE_BF-STRAS, sy-vline,
  WA_QSTRE_BF-ORT01, sy-vline,
  WA_QSTRE_BF-PSTLZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QSTRE_BF 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_BF 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_BF INTO WA_QSTRE_BF.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_QSTRE_BF-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSTRE_BF-GJAHR.
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_BF_STR, 
BUKRS TYPE STRING,
BUDAT TYPE STRING,
QSREP TYPE STRING,
FPRCD TYPE STRING,
STECD TYPE STRING,
GJAHR TYPE STRING,
NAME1 TYPE STRING,
NOHIJ TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
QPROZ TYPE STRING,
WAERS TYPE STRING,
QSSHH TYPE STRING,
QBSHH TYPE STRING,
QLAND TYPE STRING,
STCEG TYPE STRING,
QEKAR TYPE STRING,
STKZN TYPE STRING,
GBDAT TYPE STRING,
LAND1 TYPE STRING,
GBORT TYPE STRING,
GBPRO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QSTRE_BF_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_BF_STR-BUKRS sy-vline 
WA_QSTRE_BF_STR-BUDAT sy-vline 
WA_QSTRE_BF_STR-QSREP sy-vline 
WA_QSTRE_BF_STR-FPRCD sy-vline 
WA_QSTRE_BF_STR-STECD sy-vline 
WA_QSTRE_BF_STR-GJAHR sy-vline 
WA_QSTRE_BF_STR-NAME1 sy-vline 
WA_QSTRE_BF_STR-NOHIJ sy-vline 
WA_QSTRE_BF_STR-STRAS sy-vline 
WA_QSTRE_BF_STR-ORT01 sy-vline 
WA_QSTRE_BF_STR-PSTLZ sy-vline 
WA_QSTRE_BF_STR-QPROZ sy-vline 
WA_QSTRE_BF_STR-WAERS sy-vline 
WA_QSTRE_BF_STR-QSSHH sy-vline 
WA_QSTRE_BF_STR-QBSHH sy-vline 
WA_QSTRE_BF_STR-QLAND sy-vline 
WA_QSTRE_BF_STR-STCEG sy-vline 
WA_QSTRE_BF_STR-QEKAR sy-vline 
WA_QSTRE_BF_STR-STKZN sy-vline 
WA_QSTRE_BF_STR-GBDAT sy-vline 
WA_QSTRE_BF_STR-LAND1 sy-vline 
WA_QSTRE_BF_STR-GBORT sy-vline 
WA_QSTRE_BF_STR-GBPRO sy-vline      INTO ld_text SEPARATED BY SPACE.

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