ABAP Select data from SAP table QBBP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QBBP
*  INTO TABLE @DATA(IT_QBBP2).
*--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_QBBP INDEX 1 INTO DATA(WA_QBBP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QBBP>-MANDT = 1.
<QBBP>-EBELN = 1.
<QBBP>-EBELP = 1.
<QBBP>-ETENR = 1.
<QBBP>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QBBP-WERKS, sy-vline,
  WA_QBBP-BSTYP, sy-vline,
  WA_QBBP-MEINS, sy-vline,
  WA_QBBP-EINDT, sy-vline,
  WA_QBBP-MENGE, sy-vline,
  WA_QBBP-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QBBP 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_QBBP 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_QBBP INTO WA_QBBP.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field MFRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QBBP-MFRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QBBP-MFRNR.
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_QBBP_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ETENR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BSTYP TYPE STRING,
MEINS TYPE STRING,
EINDT TYPE STRING,
MENGE TYPE STRING,
CHARG TYPE STRING,
LICHN TYPE STRING,
REVLV TYPE STRING,
LOEKZ TYPE STRING,
ELIKZ TYPE STRING,
EMATN TYPE STRING,
MFRNR TYPE STRING,
MPROF TYPE STRING,
WEMNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QBBP_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_QBBP_STR-MANDT sy-vline 
WA_QBBP_STR-EBELN sy-vline 
WA_QBBP_STR-EBELP sy-vline 
WA_QBBP_STR-ETENR sy-vline 
WA_QBBP_STR-MATNR sy-vline 
WA_QBBP_STR-WERKS sy-vline 
WA_QBBP_STR-BSTYP sy-vline 
WA_QBBP_STR-MEINS sy-vline 
WA_QBBP_STR-EINDT sy-vline 
WA_QBBP_STR-MENGE sy-vline 
WA_QBBP_STR-CHARG sy-vline 
WA_QBBP_STR-LICHN sy-vline 
WA_QBBP_STR-REVLV sy-vline 
WA_QBBP_STR-LOEKZ sy-vline 
WA_QBBP_STR-ELIKZ sy-vline 
WA_QBBP_STR-EMATN sy-vline 
WA_QBBP_STR-MFRNR sy-vline 
WA_QBBP_STR-MPROF sy-vline 
WA_QBBP_STR-WEMNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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