ABAP Select data from SAP table BEW_QPRS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BEW_QPRS
*  INTO TABLE @DATA(IT_BEW_QPRS2).
*--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_BEW_QPRS INDEX 1 INTO DATA(WA_BEW_QPRS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BEW_QPRS>-PHYNR = 1.
<BEW_QPRS>-OBJNR = 1.
<BEW_QPRS>-PRART = 1.
<BEW_QPRS>-PRTYP = 1.
<BEW_QPRS>-MENGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BEW_QPRS-MEINH, sy-vline,
  WA_BEW_QPRS-ABORT, sy-vline,
  WA_BEW_QPRS-WERKS, sy-vline,
  WA_BEW_QPRS-PRIMPACK, sy-vline,
  WA_BEW_QPRS-STABICON, sy-vline,
  WA_BEW_QPRS-EINLDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BEW_QPRS 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_BEW_QPRS 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_BEW_QPRS INTO WA_BEW_QPRS.


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

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

*Conversion exit ALPHA, internal->external for field QMNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BEW_QPRS-QMNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BEW_QPRS-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_BEW_QPRS_STR, 
PHYNR TYPE STRING,
OBJNR TYPE STRING,
PRART TYPE STRING,
PRTYP TYPE STRING,
MENGE TYPE STRING,
MEINH TYPE STRING,
ABORT TYPE STRING,
WERKS TYPE STRING,
PRIMPACK TYPE STRING,
STABICON TYPE STRING,
EINLDT TYPE STRING,
AUSLDT TYPE STRING,
QMNUM TYPE STRING,
BWSTSYS0 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BEW_QPRS_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_BEW_QPRS_STR-PHYNR sy-vline 
WA_BEW_QPRS_STR-OBJNR sy-vline 
WA_BEW_QPRS_STR-PRART sy-vline 
WA_BEW_QPRS_STR-PRTYP sy-vline 
WA_BEW_QPRS_STR-MENGE sy-vline 
WA_BEW_QPRS_STR-MEINH sy-vline 
WA_BEW_QPRS_STR-ABORT sy-vline 
WA_BEW_QPRS_STR-WERKS sy-vline 
WA_BEW_QPRS_STR-PRIMPACK sy-vline 
WA_BEW_QPRS_STR-STABICON sy-vline 
WA_BEW_QPRS_STR-EINLDT sy-vline 
WA_BEW_QPRS_STR-AUSLDT sy-vline 
WA_BEW_QPRS_STR-QMNUM sy-vline 
WA_BEW_QPRS_STR-BWSTSYS0 sy-vline      INTO ld_text SEPARATED BY SPACE.

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